Zeffy (formerly Simplyk) is the only 100% free fundraising platform for nonprofits. Trusted by over 10,000 nonprofit organizations across North America, Zeffy is the all-in-o
Also listed in Donor Management, Nonprofit CRM

I have found Zeffy easy to use for the event signups at my jazz studio. The interface is well-designed and leads you through the steps needed to post an event with tickets. I often don’t charge for tickets, so Zeffy allows me to manage a free event. I use Zeffy monthly as well as for a summer workshop where the signup is a bit more complex. I have had a couple of issues that were resolved quickly through a chat session, and the documentation has helped me quickly learn and use the program without outside assistance. I am also impressed with the frequent and well-designed updates to the interface and functionality of the service. Review collected by and hosted on G2.com.
Share access to your latest business numbers with your team and your accountant so everyone is up to speed with Xero. From work, home or on the go.
Also listed in Invoice Management, Inventory Control, Expense Management, Billing, Nonprofit Accounting
Xero is great of how simple it makes invoicing and tracking payments. I can create and send invoices right from the platform, and clients can pay through paypal, which fit well with how i alreday run things. Matching payments to invoices is easy straightforward and i really appreciate having all my subscription and monthly expenses in one spot. The built in reports are also helpful they give me a fast snapshot of how business is doing without me having to build a bunch of spredsheeta from scratch. Review collected by and hosted on G2.com.
Donorbox is a powerful fundraising software that is super simple to setup and attracts more recurring donors. Start fundraising with a fast, optimized donation payment system
Also listed in Donor Management, Nonprofit Payment Gateway, Nonprofit CRM, Admission-Based Nonprofit

What I like most about Donorbox is how quickly we can launch and fine-tune donation campaigns without needing technical support. The embedded donation forms are straightforward to customize, integrate smoothly with our website, and support recurring giving by default, which has helped improve our monthly donor retention. Stripe and PayPal integrations work seamlessly, and payouts have been reliable and transparent. Review collected by and hosted on G2.com.
Givebutter is the easiest-to-use, all-in-one fundraising and CRM platform for nonprofits. It empowers millions of changemakers to raise more, pay less, and give better.
Also listed in Nonprofit CRM, Auction, Donor Management
We really like that it doesn't take a percentage of donations, and that the free version is robust. However, we're ready to move towards greater CRM capability thus I will have many more features to delve into soon. Customer service is also a MAJOR draw – the 24/7, 365 model is invaluable. I often reference this to colleagues. Review collected by and hosted on G2.com.
Sage Intacct is the industry-leading financial accounting software system with a broad set of functionalities for small to mid-sized businesses across a number of different ve
Also listed in Subscription Billing, Revenue Management, Subscription Revenue Management, AP Automation, Project-Based ERP

It seems to me that Sage Intacct has many tools and functionalities. We switched to Sage Intacct because it has too many functionalities. While some things may be lacking, it makes up for it with many other functionalities and add-ons that the application has. It helps us a lot in the accounting area when it comes to recording, modifying, and adjusting invoices, as well as in the automated calculation of taxes and the download of complete reports. Additionally, the connection with other applications, like Rippling, allows us to synchronize transactions with corporate credit cards. I also value the greater customization option that Sage Intacct offers to create specific and detailed reports, something we didn't have with our previous software, QuickBooks. Review collected by and hosted on G2.com.
Association Management Software for organizations using QuickBooks
Novi is more than just software; it is a community of associations who are all welcoming, collaborative, and willing to share their insights. What has stood out to us since the beginning, including during onboarding (2019), is the level of customer support they provide and how responsive and supportive the team is. Anytime I’ve had a question or needed help, they’ve been quick to jump in and make sure things get resolved. I also really appreciate the community of other associations using Novi; it’s welcoming, collaborative, and a great place to learn from peers.
The software itself is reliable, with strong features and robust reporting that make our work easier. We can configure a multitude of features to fit the specific needs of our association, rather than feeling boxed into a one-size-fits-all model. All features and updates are included in the price with no upselling or "nickel and dime"-ing. It’s very clear that Novi listens: our feedback actually shows up in product updates, which come regularly and make a real difference in how we use the system and can serve our members.
We've easily integrated with multiple other vendors for a robust connection of data and varying levels of member access to a variety of resources.
Their pricing is transparent and worth every penny (and then some). It was a noticeable increase in cost from our previous AMS, but Novi is an absolute game changer. It changed the course of my own career; I used to spend a good amount of time manually entering accounting transactions into QBO, but since implementing Novi I've had the opportunity to focus on strategic initiatives vs. administrative support.
Novi is critical to our Association's success. Most staff are in it every day, and it successfully serves as our 'source of truth' for all operations. I cannot imagine using another AMS again, and I don't anticipate we'll ever need to! Review collected by and hosted on G2.com.
NetSuite is a cloud ERP solution, providing a suite of applications, from accounting and financial planning, to warehouse management, ecommerce, inventory management and beyon
Also listed in UKG Marketplace, Distribution ERP, Discrete ERP, Subscription Billing, Revenue Management
I really like that NetSuite is very easy to customize. You can hire a consultant to customize the system or write a script, and the system can be expanded or tailored based on different business needs, making it almost like a bespoke system for any business. It's also very easy to use and understand. Being a 100% cloud-based system is a great benefit, especially since we have people working across the globe and it allows us to see data in real-time without waiting for transactions to process. So, yeah, it's a great benefit to have such an easy-to-customize and fast cloud-based system. Review collected by and hosted on G2.com.
iMIS is a cloud-based and mobile-ready non-profit management solution. It includes options for membership, fundraising, events, certification, product sales, online communitie
Also listed in Donor Management, Fundraising, Nonprofit CRM

iMIS has proven to be an invaluable asset for our organization, specifically in maintaining a highly organized and efficient member database. Its robust features have streamlined several of our core operations:
Event Management: We rely on iMIS to manage everything from small local gatherings to large-scale national conventions and conferences.
Fundraising and Donations: The platform provides a seamless way for our members to contribute to various charitable organizations directly through the system.
Database Integrity: It excels at keeping our member records clean and easily accessible, which is vital for our daily workflows.
Overall, iMIS is a powerful tool that effectively handles the diverse needs of our association. Review collected by and hosted on G2.com.
Stampli is the only finance operations platform centered on AP.
Also listed in Procure to Pay, Invoice Management, Strategic Sourcing, Procurement Orchestration, Purchasing

Stampli completely changed how our company sends out invoices for approval before payment. Before Stampli, I was being sent invoices for approval over email. This lead to some invoices slipping through the cracks and being lost until down the road, the accounting team would follow up and ask for approval again. With Stampli, all of the invoices pending approval are in one place and easy to review and approve, or provide feedback when needed. Review collected by and hosted on G2.com.
BILL (previously Bill.com) is a leader in financial automation software for small and midsize businesses. BILL solutions empower businesses to automate their finances, providi
Also listed in Contractor Payments, Enterprise Payment, Accounts Receivable, Invoice Management, Billing

I love how easy to use it is and how friendly it is with everything. It's very straightforward if you want to take a look into something. Especially making payments, I think the AP part is the one that I am the happiest with because it saves a lot of time. Even creating a new vendor to add new invoices to that customer is pretty useful. Review collected by and hosted on G2.com.
ReadyMembership delivers quick results and supports your ambitions to grow your membership base, income and digital services. It’s a flexible solution combining CMS with CRM,
Also listed in Nonprofit CRM, Awards Management
I love how well the website integrates with the AMS, making it seamless to properly market benefits and services to our members. The platform is easy to use and does not require a technical background to comprehend or manage. We have found numerous ways to create efficiencies thanks to the platform's flexibility, and I also appreciate that we have been able to add enhancements that were previously been cost-prohibitive with our previous platform. As an added bonus, Pixl8's support staff is phenomenal and friendly, and I truly appreciate the extra mile they go to ensure everything is always working smoothly. Review collected by and hosted on G2.com.
Anchor is the leading AR automation platform that gets businesses paid on time, every time, effortlessly. With NO subscription fee, you can send an Anchor agreement and your c
Also listed in Cash Flow Management, Proposal, Accounts Receivable, Invoice Management

Anchor has been incredibly easy to set up and use, and I love how simple it is for my clients to view everything on their end too. I started using it in November 2025, and I’ve found myself using it more and more often because the platform is so straightforward and efficient. It has the right amount of features without feeling overwhelming, and the integrations with both Xero and Double HQ were quick to set up and easy to adjust. Anytime I’ve had a question, customer support has responded in a timely manner and is always kind and helpful. I’ve already recommended Anchor to other business-owner friends and will definitely keep doing so! Review collected by and hosted on G2.com.
FreshBooks is perfect for freelancers, creatives, agency owners, and businesses with employees and contractors. Try FreshBooks free for 30 days.
Also listed in Time Tracking, Expense Management, Payroll, Billing, Payment Processing

FreshBooks is extremely easy to use, even for someone without an accounting background. The interface is clean, intuitive, and saves me time when creating invoices, tracking expenses, or managing projects. Despite being user-friendly, it still offers a strong set of features like time tracking, recurring invoices, and payment reminders. It strikes the perfect balance between simplicity and functionality, which makes it a great tool for small businesses. Review collected by and hosted on G2.com.
Refrens.com is an accounting software trusted by 150000+ businesses across 170+ countries. Businesses use Refrens to manage Invoicing, accounting, payments, billing, complianc
Also listed in Accounting

Refrens has significantly streamlined our invoicing workflow at our digital agency. The ability to generate branded invoices and quotations quickly, add GST details, define payment terms, and track invoice status (sent/viewed/paid) has improved our billing discipline.
The recurring invoice feature is especially valuable for managing monthly retainers. Instead of manually recreating invoices, we automate repeat billing and focus more on client delivery.
It’s simple enough for non-finance team members to use, which reduces dependency on one person for billing operations. Review collected by and hosted on G2.com.
Integrated Quoting and Billing (including Usage) Platform for the Modern B2B SaaS Enterprises with customers coming from different channels (including marketplace).
Also listed in E-Signature APIs, Quote-to-Cash, Billing, Proposal, Subscription Revenue Management

MonetizeNow has improved our contracting process in several ways. It has sped up approvals, given reps the ability to send contracts for signature instead of relying on dealdesk, and automated much of our deal data in Hubspot, including line items, ARR, TCV, etc. MonetizeNow has also helped us automate renewals and finally capture renewal data in Hubspot, rather than tracking it manually in a Google Sheet.
However, the best part of working with MonetizeNow has been Perry and the customer success team. They are genuinely attentive and provide a best-in-class CS experience.
The team also moves incredibly fast with system updates. New features are rolled out quickly, and it’s clear they listen and act on feedback. Review collected by and hosted on G2.com.
Modern online payments & checkout. Stop paying transaction fees. Accept multiple payment methods: credit cards, echeck, and ecash/bitcoin at 0%.
Also listed in Payment Processing, Accounts Receivable, Billing

A general payment portal that I can send out without needing to customize the amount for each individual payment. Review collected by and hosted on G2.com.
Use Bill4Time to track time, manage projects, organize expenses, invoice and bill clients, and accept payment. Used by lawyers, freelancers, accountants.
Also listed in Billing, Legal Practice Management, Legal Billing, Legal Case Management

It's comprehensive. We don't use all of the functionality but I like that it's there if we need it. Review collected by and hosted on G2.com.
Glue Up is an all-in-one CRM platform that helps you build and grow your community through events, memberships & other digital tools.
Also listed in Virtual Event Platforms, Training Management Systems, Nonprofit CRM, Event Management Platforms, Online Community Management

The community platform has a nice interface and I love that we can create subgroups for our members. The customer support is excellent and they are always improving or adding new features. Review collected by and hosted on G2.com.
Sequence is a quote-to-revenue platform for B2B companies with usage-based or complex pricing. Sequence automates your revenue collection process from quote to cash, increasin
Also listed in Quote-to-Cash, Subscription Billing, Accounts Receivable, Invoice Management, CPQ

The flexibility has been the main benefit for us. We’ve been able to configure different pricing models and contract terms without workarounds, and adjust things as the business changes. The CPQ side integrates cleanly with Attio for sales, while Stripe and Xero handle payments and accounting on the back end. Review collected by and hosted on G2.com.
Aplos Nonprofit Management Platform is an online fund accounting solution for nonprofits and churches.
Also listed in Nonprofit Payment Gateway, Admission-Based Nonprofit

Aplos is one of the few accounting systems set up purposefully for Non-profits. Their Fund accounting is easy to follow and set up went quickly. Customer support is thorough and swift. I use Aplos every day that I am in the office. Review collected by and hosted on G2.com.