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Open Source App Building Software (2026)
Last updated: February 2026
19 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Low code development platform to create apps using AI
OutSystems is offered as a yearly subscription with everything you need to quickly deliver your first set of custom applications, and grow as you need. Enterprise trials are available on request, for companies that want to evaluate the platform. Free personal environments in the OutSystems cloud are also available for evaluation and personal use.
Read more about OutSystems
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Build apps, databases, automations and AI agents — no code.
Prices shown will vary depending on the billing cycle selected (Monthly / Yearly).
Read more about Baserow
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
An Open Data Platform for managing headless content.
Build your hobby or proofs-of-concept projects for FREE with our Community Cloud. If you are looking for a production-ready and highly performant offering, check out the pay-as-you-go usage-based pricing on our Standard Cloud. Configure the exact hardware you need and apply customized auto-scaling rules, starting at just $.0347 per node, for every hour you use the platform. Our Enterprise team is ready if you require support and an SLA for your project. Head over to directus.io/contact-enterprise to get started. At Directus Cloud, there's a place for everyone and every project!
Read more about Directus
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The enterprise mobile SDK and Superapp SDK
Pick a plan that’s right for you. Ionic offers multiple enterprise-grade cloud and native packages that enhance Ionic application functionality and security.
Read more about Ionic
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based ERP solution for small to midsize businesses
Community plan: free Pro: 35€/month/user Entreprise Pro: Discuss your project Contact Axelor for more information.
Read more about Axelor
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Software for designing, prototyping and testing UI
Read more about Theta
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Low-code platform to build business applications with ease
Pricing is available on a monthly subscription, starting from €1,290.00 per month including one app and 100 users. More information on https://simplifier.io/en/pricing/
Read more about Simplifier
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source React Native visual builder with Expo built-in
Draftbit currently has 3 plans: • Free - Everything you need to get started building your app. • Basic - Upgrade to take your app live and iterate on it. • Pro - Level up for access to source code and custom code. • Team - Add collaborators and more projects, access to Github. • Enterprise - Build together with your team & clients, backed by dedicated support and training.
Read more about Draftbit
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Create Enterprise Applications @ The Speed of Thought
[On-Premise Pricing] Professional Edition: $80 per user/year | Enterprise and Large Enterprise Edition: Starts from $3,000 | Cloud Multi-tenancy Edition: Starts from $150,000 [Cloud Pricing] Joget DX On-Demand: Starts from $2 per user/month | Managed Services: Starts from $300 per month
Read more about Joget DX
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Process Orchestration & Automation with AgenticAI
Read more about Flowable
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The Smart ERP with Superpowers
Starting from a BASIC plan of $100 per User per Month - there are alternative pricing model based on user volume and their type of usage.
Read more about Tangle
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Low code platform that limits the vendor lock-In effect
Pricing starts at 15€ / User / Month for B2E / B2C Named users. For B2C users, pricing is based on number of concurrent users accessing the platform. The more number of users, the more price / user is discounted. Annual Subscriptions gives 20% discount.
Read more about Convertigo
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
App building software
starting at $10 per month Offers free plan with many features
Read more about Swiftspeed Appcreator
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The digital platform for impactful frontline work everywhere
CommCare offers four main pricing plans tailored to different organizational needs: Standard: Ideal for organizations just beginning to transition from paper-based systems to digital data collection and case management. Pro: Suited for users requiring features like reporting, case sharing capabilities, and access to hands-on support. Advanced: Designed for managing connected systems across various locations and user profiles, offering enhanced security. Enterprise: A customizable option aimed at large-scale deployment, supporting digital data collection and service delivery across multiple teams, programs, and even countries.
Read more about CommCare
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Low Code Platform to build forms, workflows, and automations
Please contact formsflow.ai for pricing details.
Read more about formsflow.ai
