
Mendix
Zoho Creator
Xamarin
Android Studio
Xcode
Firebase
Appian
Build Enterprise-Grade Apps Fast.

NovoPsych
Digital Psychology assessments with research-backed UX for neurodivergent patients. Better completion rates, more comfortable patient experience, instant scoring, trend tracking with secured data hosting.

Which is more popular?
Based on our record, OutSystems seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | outsystems.com | clientforms.app |
| Pricing | ||
| Company | Startup from the United States · 1,000 - 1,999 employees · 2001 | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Outsystems: Low-Code Apps - This Week in Enterprise Tech 317
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing OutSystems and ClientForms.app.
ClientForms.app's answer:
Frontend: Next.js 15 (React 19), Tailwind CSS Backend: Supabase (PostgreSQL, Row-Level Security) Authentication: Clerk Payments: Stripe Hosting: Vercel (Sydney region) Database hosting: Supabase (Australian data residency)
ClientForms.app's answer:
Psychologists who assess ADHD and autism. Typically private practice, solo or small group (1-5 clinicians), currently using paper forms and spending hours on admin per assessment. They want something that works and is secure.
ClientForms.app's answer:
Neurodivergent-first design. Most digital forms just replicate paper online. ClientForms is built specifically for ADHD and autism patients - progress bars with time remaining (helps with time blindness), softer colours instead of harsh white, sticky headers so you always know where you are. The forms are designed to reduce anxiety and improve completion rates.
ClientForms.app's answer:
Most clinical software treats patients as an afterthought. ClientForms is designed specifically for neurodivergent users who are filling out the forms, progress indicators, time estimates, calmer colours, predictable layouts. One link, no signup required, works on any device. Patients just open and complete.
Share your experience with using OutSystems and ClientForms.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


OutSystems: Strong enterprise governance, lifecycle tooling, and AI-assisted development, with newer agent capabilities through Agent Workbench. Good fit for governed app delivery, but less suited to cross-system...
Strengths: This established low-code platform delivers rapid application development with a focus on scalability and security. OutSystems offers a mature platform ideal for building mission-critical enterprise...
Development With No Limits. Everything you need to build enterprise apps incredibly fast. Every aspect of OutSystems is crafted to help you build better apps faster and make changes easily. From high-productivity...
We have no reviews of ClientForms.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


This month, I followed in the footsteps of many other OutSystems developers and completed the exam to become a certified Associate Reactive Developer. This exam focuses on the fundamentals of OutSystems reactive web and mobile... - Source: dev.to / over 2 years ago
Check out the AWS Architecture Blog to see how OutSystems designed a globally distributed serverless request routing service for its multi-tenant architecture. Source: over 5 years ago
Tracking ClientForms.app since Dec 2025.
When comparing OutSystems and ClientForms.app, you can also consider the following products.

Mendix is the fastest and easiest low-code platform used by businesses to create and continuously improve mobile and web apps at scale.
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NovoPsych is a tool that is used for outcome monitoring via conducting psychological tests online.
Compare NovoPsych to OutSystems or ClientForms.app:

Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.
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Android development environment based on IntelliJ IDEA
Compare Android Studio to OutSystems or ClientForms.app:

Xcode is Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.
Compare Xcode to OutSystems or ClientForms.app: