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G2 recognized StackOne
StackOne

By StackOne

4.6 out of 5 stars

How would you rate your experience with StackOne?

StackOne Reviews & Product Details

Value at a Glance

Averages based on real user reviews.

Time to Implement

2 months

StackOne Integrations

(166)
Verified by StackOne

StackOne Media

StackOne Demo - Built for AI
Thousands of AI Actions. AI Tool‑Calling, Perfected. Power-up your RAG.
StackOne Demo - Advanced Unified API
Advanced bidirectional operations. AI-assisted extensibility (Magic Mapping - AI). SLA-guaranteed integrations and coverage.
StackOne Demo - Real-Time, No Lag
Real-time Unified API (no data sync). Native + Synthetic webhooks.
StackOne Demo - Pre-Built Authentication UI
Drop‑in, Brand‑Ready Auth Screens. Hundreds of Connection Guides.
StackOne Demo - Enterprise Ready
No PII stored thanks to real-time architecture. Hybrid deployment & Multi-Region. Handle complex enterprise user configurations. Certified, Secure, Compliant.
StackOne Demo - StackOne AI Agent Interface
Empower your AI agents to take accurate action with 3,000+ ready-to-use tools and zero integration overhead.
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StackOne Reviews (42)

Reviews

StackOne Reviews (42)

4.6
42 reviews

Pros & Cons

Generated from real user reviews
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Verified User in Human Resources
UH
Enterprise (> 1000 emp.)
"Fantastic company, fantastic product and excellent leadership."
What do you like best about StackOne?

StackOne offers a clean, intuitive interface for managing API integrations, making it easy for both technical and non-technical users to connect services without deep coding knowledge. Its modular architecture and pre-built connectors help accelerate integration timelines, while robust documentation and automation features reduce maintenance overhead. They are fantastic! Review collected by and hosted on G2.com.

What do you dislike about StackOne?

I can't think of many -- they listen to customer feedback and are very responsive. It's an excellent product and organization. Review collected by and hosted on G2.com.

Ben D.
BD
Head of Customer Success
Small-Business (50 or fewer emp.)
"A responsive team and an impactful product"
What do you like best about StackOne?

The guides on the StackOne website are easy to follow and have enabled easy implementation with customers Review collected by and hosted on G2.com.

What do you dislike about StackOne?

Less a dislike, more constructive feedback, that the demo of the integrations could be simpler to follow Review collected by and hosted on G2.com.

Tom M.
TM
Engineering Function Manager
Mid-Market (51-1000 emp.)
"Unified API saves time and hassle"
What do you like best about StackOne?

Building once for multiple use cases is a huge benefit for us. Often we have to plan out integrations and even if they follow a similar integration pattern, it's difficult to schedule time per implementation. Using a unified API has removed a tonne of hassle. Review collected by and hosted on G2.com.

What do you dislike about StackOne?

You do somewhat have to lock-in to the StackOne ecosystem but it's a worthwhile trade-off. By standardising our approach through a unified API, we will significantly reduce the complexity of managing multiple integrations, allowing us to focus on delivering value rather than maintaining custom connections. Review collected by and hosted on G2.com.

James S.
JS
Engineering Lead
Small-Business (50 or fewer emp.)
"Easy integration with a wide selection of ATS"
What do you like best about StackOne?

The technical documentation was easy to consume and there was a clear focus on security. Using the StackOne dashboard was always very easy, the concept of StackOne Projects made integrating across our different environments a breeze. Review collected by and hosted on G2.com.

What do you dislike about StackOne?

The Node.js SDK would on occasion fall behind the API. Review collected by and hosted on G2.com.

Verified User in Computer Software
AC
Mid-Market (51-1000 emp.)
"Exceptional Support That Makes a Difference"
What do you like best about StackOne?

The support from the team is very helpful and insightful! Review collected by and hosted on G2.com.

What do you dislike about StackOne?

Currently at the moment we are missing filtering capabilities from stack ones end. Review collected by and hosted on G2.com.

Verified User in Computer Software
EC
Small-Business (50 or fewer emp.)
"Easy to integrate with great coverage of HRIS platforms"
What do you like best about StackOne?

We're the developers of Workpro case management for HR teams and we selected StackOne to use for integrating HRIS platforms into Workpro. We see the benefits as wide coverage of different HRIS platforms; great documentation and onboarding support; improved onboarding for our customers. They also have a good commercial model which ties in well with our product growth. Review collected by and hosted on G2.com.

What do you dislike about StackOne?

More of an issue with working with multiple different HRIS backends, some less frequently used fields aren't already mapped in their implementation and it can take a little while for these to be included. However, they have excellent documentation which describes which field mappings are available. Review collected by and hosted on G2.com.

Facundo P.
FP
Senior Software Developer
Mid-Market (51-1000 emp.)
"Simple, effective and well-supported"
What do you like best about StackOne?

It gets the job done, lot's of integrations, it is not too complex, and the support was great when needed. Review collected by and hosted on G2.com.

What do you dislike about StackOne?

Gem stability: it's still pre-1.0 and the changelog is not very descriptive as it is generated with another tool, so it makes it hard to know what changed in each version, but at least they release new versions frequently Review collected by and hosted on G2.com.

Verified User in Human Resources
UH
Mid-Market (51-1000 emp.)
"Saved time in implementation."
What do you like best about StackOne?

Docs are good. TS SDK is easy to use.

Team around it was supportive and helpful.

Didn't want to spend time implementing layers of mapping between 3rd party providers, having a well thought out implementation that means you write code once that just works is fantastic. Review collected by and hosted on G2.com.

What do you dislike about StackOne?

Lack of filtering options when getting lists Review collected by and hosted on G2.com.

Verified User in Staffing and Recruiting
US
Small-Business (50 or fewer emp.)
"Integrations Simplified"
What do you like best about StackOne?

StackOne enables system integrations to look like a breeze.

Why?

- Sandbox

- Proactive developer relations & responsive customer support

- Well documented and maintained

- Active development for custom features

- Developers access a wide range of services through a unified API — abstracting away platform-specific nuances and centralizing developer relations to a single point of contact.

Has a large Specter of integrations to choose from:

- ATS

- HRIS

- CRM

- Supports IAM Review collected by and hosted on G2.com.

What do you dislike about StackOne?

Development lacks end-to-end manual testing (e.g webhooks cannot be manually triggered, yet they occur during specific timelines) Review collected by and hosted on G2.com.

Patryk L.
PL
Software Engineer
Small-Business (50 or fewer emp.)
"Seamless Integrations and Outstanding Support"
What do you like best about StackOne?

StackOne’s Unified API made our integration process incredibly fast and efficient. Connecting with multiple connectors through a single integration saved us time and effort. The platform is intuitive and reliable. The support team is top-tier — they respond instantly, understand our needs, and suggest and implement improvements very quickly. Review collected by and hosted on G2.com.

What do you dislike about StackOne?

So far, we haven't encountered any major issues. Minor adjustments were handled quickly by the support team. Review collected by and hosted on G2.com.

Pricing Insights

Averages based on real user reviews.

Time to Implement

2 months

Return on Investment

5 months

Perceived Cost

$$$$$
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StackOne Features
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