Top Free Online Appointment Scheduling Software - Page 22

How Many Online Appointment Scheduling Software Products Does G2 Track?

Total Products under this Category: 1,408

Category Stats (Nov 2026)

  • Average Rating: 4.49/5 (↑0.01 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Modern Events Calendar (+5.35%) - Among all products in this category, Modern Events Calendar recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank Online Appointment Scheduling Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 117,500+ Authentic Reviews
  • 1,408+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Online Appointment Scheduling Software

G2 Grid® for Online Appointment Scheduling Software plotting products by satisfaction and market presence

Highlighted products: Zoom Workplace, Calendly, Microsoft 365, Qualified, Mindbody, GlossGenius, Jotform, and GReminders.

Underlying data: [Grid® JSON](https://www.g2.com/categories/online-appointment-scheduling/grids.json?focus%5B%5D=zoom-workplace&focus%5B%5D=calendly&focus%5B%5D=microsoft365&focus%5B%5D=qualified&focus%5B%5D=mindbody&focus%5B%5D=glossgenius&focus%5B%5D=jotform&focus%5B%5D=greminders)

Time Slot

Time Slot is a lightweight booking and appointment scheduling plugin for WordPress that helps businesses manage online bookings, services, staff, availability, payments, and customer notifications from one place. Create flexible schedules with business hours, breaks, holidays, staff days off, advance booking limits, and buffer times, then add a customizable booking form to your website. Time Slot Pro adds online payments with Stripe, PayPal, and Mollie, Google Calendar two-way sync, SMS notifications, email reminders, custom form fields, customer management tools, and more. With a quick setup wizard, built-in support for popular page builders, and a free version with no limits on appointments, services, staff, or customers, Time Slot makes it easy to start accepting appointments without adding unnecessary complexity.

Who Is the Company Behind Time Slot?

TraceMyLead

TraceMyLead is a cloud-based sales scheduling software designed to enhance the business process of Remodeling and Home Improvement Industry. With an advanced lead management system, you can easily manage leads, appointments, marketing, sales, field service projects and more. Contractors, home service pros, and remodelers – manage your business easily and seamlessly from anywhere on any device.

Who Is the Company Behind TraceMyLead?

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Connect G2 to Claude or ChatGPT for answers grounded in G2's trusted reviews, comparisons, and pricing from real user insights.

How it works

Trackler

Trackler is an all-in-one coaching platform that centralizes every part of the coaching process — clients, sessions, notes, forms, onboarding, scheduling, and messaging — into one structured workspace. Instead of working across spreadsheets, emails, chats, and shared drives, Trackler gives coaches a clear track-based system that organizes each client journey from start to finish. Coaches can automate follow-ups, collaborate with co-coaches, run group programs, and monitor client engagement and progression. Trackler reduces administrative workload, increases professionalism, and offers clients an organized and seamless coaching experience.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind Trackler?

  • Seller: Trackler
  • Year Founded: 2021
  • HQ Location: Haarlem, NL
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Trackler?

TradeBooked

TradeBooked is field service management software for UK trade businesses. It runs the full job lifecycle: customers book online 24/7 or are booked in, jobs are scheduled against your availability and location, you run the job from a mobile app on site (works offline), and you quote, invoice, and take payment without marketplace fees or commission. Built for sole traders and small trade teams, TradeBooked includes a professional booking page, trade-specific booking questions, postcode coverage checks, customer records and history, automated reminders, job sheets and PDF invoicing, deposits and card payment, running-late updates, and branded documents. It is built for UK compliance and paperwork, not adapted from a US product: Gas Safe, NICEIC and FMB badges on your booking page, gas safety records (CP12), PAT testing, and BS 7671 electrical records, plus CIS handling and VAT-ready accountant packs. TradeBooked runs on the web and as native Android and iPhone apps, with flat pricing across Solo, Pro and Autopilot and user logins included. It is designed to cut admin, reduce missed calls, and convert more jobs.

Who Is the Company Behind TradeBooked?

Trainin

We are Trainin, we offer an all-in-one software for sport enterprises who wants to automate their administration, planning and contact. Most of our customers are personal training, fitness, yoga and boxing studios, but we have also active partners (customers) in other markets as coaching, dancing and courses. We really care about quality and personal service for our partners, you can always have a quick chat with us via mail, WhatsApp or a phone call.

Average Rating: 5.0/5.0

Total Reviews: 2

How Do G2 Users Rate Trainin?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.2/10)

Who Is the Company Behind Trainin?

  • Seller: Trainin
  • Year Founded: 2015
  • HQ Location: Amsterdam, NL
  • LinkedIn® Page: www.linkedin.com
    23 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Trainin?

TrustAnalytica

TrustAnalytica is the best online interaction solution to helps businesses grow and be found online. TrustAnalytica is all in one customer engagement tool. With a universal business toolkit, TrustAnalytica can help businesses provide excellent customer experiences and retain their customers by using modern technologies. SaaS company that helps small to medium size businesses manage online reputation, process payments, automate booking, generate and process leads.

Average Rating: 4.6/5.0

Total Reviews: 12

How Do G2 Users Rate TrustAnalytica?

  • Has the product been a good partner in doing business?: 9.4/10 (Category avg: 9.2/10)

Who Is the Company Behind TrustAnalytica?

Who Uses This Product?

  • Company Size: 67% Small, 25% Medium

What Do G2 Reviewers Say About TrustAnalytica?

AI-generated summary from verified user reviews

Pros
  • Users value the automation capabilities of TrustAnalytica, streamlining their booking processes and enhancing efficiency.
  • Users value the centralized review system for seamless integration and effective feedback tracking across multiple channels.
  • Users value the invaluable customer support from TrustAnalytica, enhancing focus and saving time for client management.
  • Users value the real-time analytics of TrustAnalytica, enhancing credibility and trust with their customers.
  • Users value the integration of reviews across channels and the effective tracking of customer feedback.
Cons
  • Users feel there is insufficient data in TrustAnalytica, limiting the effectiveness of insights and metrics provided.
  • Users find the slow performance of TrustAnalytica frustrating, despite its convenience and effective review gathering capabilities.

What Are Recent G2 Reviews of TrustAnalytica?

What Are G2 Users Discussing About TrustAnalytica?

Understory

Understory is an all-in-one experience management platform that helps tour operators, activity providers, and experience hosts run their entire business through a single system. Built specifically for the experience economy, it serves over 900 companies—from cooking classes to adventure tours—replacing multiple tools with one integrated solution. The platform eliminates the typical tech stack fragmentation experience businesses face. Users can create and schedule experiences, manage unlimited bookings without per-ticket fees, process payments through multiple gateways (including Apple Pay, Google Pay, MobilePay, and PayPal), and automate guest communications in multiple languages. Self-service features let customers reschedule or cancel bookings independently, dramatically reducing administrative work. Core capabilities include automated marketing tools that connect to marketplaces like Truestory and run targeted ad campaigns (businesses report 10% average booking increases), flexible pricing with instant refunds and partial refund options, unlimited team access at no extra cost, and seamless website integration requiring zero coding skills. The platform works smoothly on mobile devices, enabling hosts to manage bookings and communicate with guests from anywhere. Unlike generic booking systems, Understory is purpose-built for experience businesses with features like flexible guest self-service options, marketplace distribution, custom discount codes, and sales tracking tools. The platform includes an optional managed advertising service that handles Facebook and Instagram campaigns for a flat monthly fee. Users can get started for free with flexible plans that grow with the business. The platform offers three tiers: Starter (for small businesses), Growth (for scaling operations), and Scale (for rapid expansion). With no contracts, hidden fees, or per-user pricing, Understory provides seven-day support with 80% of queries resolved in under a minute. It's designed to help experience makers spend less time on administration and more time delivering memorable experiences while growing their business.

Who Is the Company Behind Understory?

Upvio

Vitals AI is Upvio’s camera-based remote vital signs monitoring technology. It uses a short face scan and remote photoplethysmography (rPPG) with computer vision to detect subtle blood-flow signals and convert them into clinically validated physiological insights using a standard phone or webcam, with no wearables or external hardware. In around 30 seconds, Vitals AI can deliver 20+ health markers, including heart rate, HRV, breathing rate, blood pressure, stress metrics, and cardiovascular risk indices. Teams can configure scans using reusable templates, generate secure, shareable links for any workflow (customers, campaigns, teams, individuals), and review results and trends from a single platform. Deployment is available as a fully hosted solution, with enterprise-grade security, governance, and compliance built in, and integration supported via platform tools and API options.

Average Rating: 4.7/5.0

Total Reviews: 10

How Do G2 Users Rate Upvio?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.2/10)

Who Is the Company Behind Upvio?

  • Seller: Upvio
  • Year Founded: 2017
  • HQ Location: Camperdown, NSW
  • LinkedIn® Page: www.linkedin.com
    17 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 80% Small, 10% Medium

What Are Recent G2 Reviews of Upvio?

What Are G2 Users Discussing About Upvio?

Vectera

Vectera is the better way to meet customers online. A single URL is all you need to access the online meeting rooms. Schedule appointments and conduct secure video meetings for up to 10 people. Get creative with whiteboards, cobrowsing and document annotation. 1-click start, no downloads, no frustrations.

Average Rating: 4.5/5.0

Total Reviews: 143

How Do G2 Users Rate Vectera?

  • Has the product been a good partner in doing business?: 8.6/10 (Category avg: 9.2/10)

Who Is the Company Behind Vectera?

  • Seller: Vectera
  • Year Founded: 2016
  • HQ Location: Ghent, Flemish Region
  • LinkedIn® Page: www.linkedin.com
    6 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Marketing and Advertising
  • Company Size: 63% Small, 27% Medium

What Do G2 Reviewers Say About Vectera?

AI-generated summary from verified user reviews

Pros
  • Users love Vectera for its easy-to-use interface, enabling seamless meetings and efficient collaboration without complications.
  • Users value the easy setup of Vectera, allowing for quick and hassle-free meeting initiation and collaboration.
  • Users appreciate the scheduling ease of Vectera, streamlining appointments and enhancing collaboration effortlessly.
  • Users appreciate the seamless team collaboration offered by Vectera, enabling smooth and efficient interactions during meetings.
  • Users love Vectera for its intuitive interactive collaboration features, enhancing engagement during meetings and onboarding sessions.
Cons
  • Users face occasional connectivity issues with Vectera, which disrupts their experience during video calls.
  • Users find Vectera to have limited features compared to larger tools, lacking advanced options and integrations.
  • Users wish for more limited integrations in Vectera, as additional options could enhance functionality and connectivity.
  • Users experience occasional performance issues with Vectera, especially during large group meetings and multitasking.
  • Users often face technical issues like glitches and connectivity problems that disrupt meetings and collaboration.

What Are Recent G2 Reviews of Vectera?

What Are G2 Users Discussing About Vectera?

Visitorify

Online appointment scheduling software. A cloud-based online booking, client self-service, and schedule management system for businesses.

Who Is the Company Behind Visitorify?

Vitena

Vitena is practice management software for independent health and wellness professionals and small clinics, paired with a public directory where clients find and book them. Most practice management tools begin after the client already exists. Vitena covers the step before that. Every account gets a public profile page listing disciplines, languages, cities, services and prices, published in a directory that consumers browse and book from without creating an account first. The booking page and the calendar behind it are the same system, so availability, services and prices are never out of sync. Who it is for Vitena is multi-disciplinary and is used by dietitians and nutritionists, dentists and dental clinics, physiotherapists and rehabilitation practitioners, psychologists and counsellors, beauty and aesthetics practitioners, child development specialists and other health and wellness professions. It is built for solo practitioners and small teams, typically one to ten seats, who need proper client records and scheduling without enterprise software or an implementation project. Core capabilities Client records with full history, documents, notes and custom forms. Appointment scheduling with availability rules, a public online booking page and automated email reminders. Structured session notes and treatment or meal plans. A service catalogue with per-service pricing that can be published as a public price list. Declared insurers and contracted payers that clients can filter by in the directory. A front-desk screen with a waiting-room display. Payment, prepayment and outstanding-balance tracking per client and per appointment. Digital informed consent with versioned templates, electronic signature and a signed PDF archive. Discipline-specific tools All disciplines share the same core, and some add their own: meal planning with a food and recipe database for nutrition, a tooth chart and treatment planning for dentistry, and home exercise programs for physiotherapy. Disciplines are enabled per account, so a multi-disciplinary clinic runs one workspace instead of several. Client-facing A client portal on the web plus an Android app, where clients see their appointments, plans and shared documents. Two-way Google Calendar sync keeps the practitioner's own calendar current. Languages, hosting and pricing The interface is available in seven languages: English, Spanish, Turkish, German, Dutch, Ukrainian and Portuguese. Vitena is used primarily across Europe and Turkey and is hosted in the European Union. There is a free tier that does not expire, and paid plans are seat-based and billed monthly, starting at EUR 15 per user per month with no setup fee and no long-term contract.

Who Is the Company Behind Vitena?

Voltalyze

Voltalyze is an all-in-one business management platform for beauty and wellness businesses, including hair salons, beauty salons, barbershops, nail studios, lash and brow businesses, spas, massage providers and aesthetic clinics. It connects bookings, customers, staff, payments, POS, inventory, marketing, reporting and a business website. Two integrated AI assistants support the customer experience and the work behind it. Customers can browse services, choose a professional, compare available times and book online. Businesses control opening hours, booking notice periods, advance-booking limits, cancellation policies, deposit requirements and customer self-service rules. Availability considers service duration, staff working hours, published shifts where applicable, time off, existing appointments and required rooms or equipment. Confirmations, reminders, waitlists and rebooking support the appointment journey. The calendar provides day, week and month views, staff colour coding, blocked time and appointment details. Teams can move and resize appointments, adjust columns, save view preferences and filter the day view to rostered staff. Holiday, sickness and other blocked periods help manage availability. Multi-service visits let customers book several services in one journey, with a professional or any available professional selected for each service. Services can run sequentially or, where supported by the service setup, alongside another service during processing time. Linked appointments retain their service, staff and payment details through the visit, calendar and checkout. Group bookings support several attendees, simultaneous or mixed-service arrangements, and organiser or individual payment-share workflows where enabled. The service catalogue supports categories, descriptions, prices, durations, service options, add-ons, bundles and location assignments. Individual professionals can have their own service prices and durations. Processing time and finishing time support services such as colour treatments, while room and equipment requirements connect service setup with availability. Bundles can combine sequential or simultaneous services, including choice groups and optional items. Voltalyze Concierge is the customer-facing AI receptionist on the business website. It answers questions using the business's service catalogue, policies, locations and opening hours; checks current prices and availability; finds the next available appointment; and creates bookings after the customer confirms the details. It can provide a payment link or QR code when a booking requires payment, help customers join a waitlist, answer questions about retail products, gift cards, packages and memberships, and provide contact options for a team member. For signed-in customers, Concierge can retrieve an account summary covering their own appointments, loyalty points, gift cards, packages and memberships. Its booking tools follow the business's booking restrictions, including applicable patch-test requirements, blocked-client rules and deposit settings. Businesses can review conversations and recorded assistant activity in the workspace. The integrated business assistant helps owners and authorised staff investigate performance, retrieve business information and carry out supported operational tasks. Users can ask questions across appointments, sales, clients, staff, stock and other permitted business records, with results presented as summaries or tables. It also explains the platform and links to relevant workspace pages. Depending on permissions, the business assistant can create or update services, service options, add-ons, bundles, packages, membership plans, promotions and smart-pricing rules. It can manage supported customer and product records, update business settings, prepare email or text campaign drafts, create draft purchase orders, record time off and generate staff rosters with a preview. Supported changes are recorded in its activity history, with an undo option for eligible recent actions. Voice input lets users speak an instruction, review the transcribed text and send it. Access to both assistants is available with Solo and Business; AI usage is charged separately on a pay-as-you-go basis. Customer management brings profiles, contact details, appointment histories, preferences, notes, tags, files and benefits together. Search, filters and customer segments help businesses find records and understand their client base. Consultation and consent forms can be associated with customer records. Patch-test tools track completions, validity, expiry, renewal history and revoked records, with service-specific booking requirements where configured. The customer portal supports eligible booking changes, profile updates and access to appointments, gift cards, packages, memberships and loyalty information. Changes and cancellations follow the business's configured self-service rules. Retention tools include digital gift cards, prepaid service packages, memberships, loyalty points, rewards and stamp cards. Businesses can configure the relevant rules, manage issued benefits and track balances or redemptions. Gift cards can be sold online, emailed or prepared for collection, while packages and memberships connect entitlements with the customer's record and eligible services. Marketing tools support email and SMS campaigns, customer audiences, saved segments, templates, promotions, flash sales and last-minute offers. The email builder uses editable sections for headlines, text, images and buttons, with personalised previews and unsubscribe information. Teams can prepare campaigns for selected audiences and review delivery and engagement information. Messaging usage and costs are available in the workspace. Automated review requests support feedback collection and links to external review platforms. Smart pricing supports scheduled price adjustments for selected services and locations. Staff management includes profiles, service qualifications, location assignments, working hours, employment information, documents and emergency contacts. Businesses can plan shifts, publish rosters, record time off, track attendance and manage clock-in records. Roster generation uses each professional's working hours, previews the proposed shifts and accounts for approved absences and closed periods. Rolling generation supports upcoming schedules without rebuilding each week manually. Commission and payroll tools connect team activity with pay periods, pay runs, commission rules, tips and adjustments. Worked hours can come from published shifts or attendance records, depending on the business configuration. Team members can view their own profile, hours, time off and pay information. Role-based permissions control which pages, records and actions each person can access. Payments and POS connect service and retail sales with deposits, payment records, gift-card redemption, receipts and refunds. Deposits can be set as a fixed amount, percentage or full payment for eligible services, including services with options. Paid deposits have their own receipts and are credited against the remaining appointment balance at checkout. Connected Stripe payment tools support online payments and compatible in-person card readers, subject to provider availability and setup. Reader tipping is available where configured. Finance tools cover sales, expenses, recurring expenses, tax summaries, commissions, payment reconciliation and payout information. Day End supports cash counts, discrepancies, approvals and trading-day closure. Reports include daily summaries, payments, item sales, staff performance, labour, product margins, stock on hand, stock movements and sales of gift cards, packages and memberships. Inventory management covers retail products, service consumables, brands, categories, SKUs, barcodes, supplier records and purchasing. Businesses can track stock levels and movements, review low-stock information and manage supplier items, pack sizes and costs. Purchase orders connect a supplier, ordering location and product lines. Stocktakes support physical counts, variance review and posting approved adjustments. Stock connects with retail sales and the online shop. Each business has a connected customer-facing website with service listings, booking pages, team information, location details, an online shop and customer portal. Product sales, gift cards, packages and memberships can be offered through supported online channels. Website content connects with the catalogue and records maintained in Voltalyze. Solo includes a Voltalyze-hosted address; Business supports custom-domain connection. Operational tools include internal team messages, support requests, improvement records, business settings and activity logs. Multi-location tools organise services, professionals, opening hours, appointments, stock and reporting by location. Voltalyze offers Solo and Business subscriptions. Solo supports one independent professional at one business location. Business adds staff accounts, shared calendars, team permissions and multi-location operations. Both plans provide core booking, client, POS, inventory, marketing, reporting and website tools, plus access to both AI assistants with usage billed separately. New businesses can start a 14-day free trial without a credit card or an automatic subscription charge. After verifying their account, owners can create a workspace, add services, configure availability and preview the customer booking experience. Paid AI, SMS and voice usage are not included in the free trial. Guided setup and ongoing support are available, while optional migration and custom work are agreed separately. Payment processing, applicable messaging and AI usage, hardware and connected third-party services incur separate charges.

Who Is the Company Behind Voltalyze?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated October 3, 2024