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Best Startup App Builder in 2026

Startup app builders help you create applications through builder tools instead of writing a project from scratch. This list covers tools for startups choosing a budget-conscious way to build for web, Android, iOS, APIs, macOS, or Windows.

  1. 1

    Adalo

    by Adalo
    Free plan AndroidiPhoneWeb

    Adalo combines visual app building with native mobile publishing, responsive web output and a built-in database.

    7.6 Free plan · paid from $36/mo (annual) Visit site
  2. 2

    Anything

    Free plan AndroidiPhoneWeb

    Anything combines prompt-based building with databases, authentication, integrations, and mobile publishing.

    7.5 Free plan · paid from $19/mo Visit site
  3. 3

    AppMaster

    by AppMaster
    Free plan WebiPhoneAndroid

    AppMaster combines web and mobile app creation with database, authentication, API, and publishing features.

    7.5 Free plan · paid from $195/mo Visit site
  4. 4

    Base44

    Free plan AndroidAPIiPhone+1

    Base44 combines natural-language app creation with backend setup, hosting, and integrations.

    7.5 Free plan · paid from $16/mo (annual) Visit site
  5. 5

    Backendless

    by Backendless
    Free plan WebiPhoneAndroid

    Backendless combines core backend services with mobile publishing across three listed platforms.

    7.4 Free plan · paid from $15/mo Visit site
  6. 6

    Bolt.new

    Free plan AndroidiPhoneWeb

    Bolt.new combines prompt-based project creation with hosting, databases, and integrations. Consider its browser requirements and Free plan token limits when choosing a plan.

    7.3 Free plan · paid from $25/mo Visit site
  7. 7

    Bubble

    by Bubble
    Free plan AndroidiPhoneWeb

    Choose Bubble if you want to build web and mobile apps that share a backend, database, workflows, and API connections.

    7.3 Free plan · paid from $59/mo (annual) · 14-day trial Visit site
  8. 8

    Draftbit

    Free plan AndroidAPIiPhone+1

    Draftbit combines visual editing, AI-assisted workflows, and exportable project code across mobile, web, and website projects.

    7.3 Free plan · paid from $12/mo Visit site
  9. 9

    FlutterFlow

    Free plan AndroidiPhoneLinux+3

    FlutterFlow combines visual app-building tools with backend connections, team collaboration, testing, and deployment options.

    7.3 Free plan · paid from $39/user/mo Visit site
  10. 10

    Bravo Studio

    by Bravo Studio
    Free plan iPhoneAndroid

    Choose Bravo Studio if you need a mobile app platform with publishing, authentication, and API integrations.

    7.2 Free plan · paid from $22/mo Visit site
  11. 11

    Mobincube AI

    Free plan AndroidAPIiPhone+1

    Mobincube AI combines prompt-based generation with native mobile output, iterative chat editing, and source-code access.

    7.2 Free plan · paid from $20/mo Visit site
  12. 12

    Kodika

    Free plan AndroidiPhoneMac

    Kodika combines visual design, extensive event logic, integrations, and native mobile publishing.

    7.1 Free plan · paid from €14.90/mo Visit site
  13. 13

    OutSystems

    by OutSystems
    Free plan WebiPhoneAndroid

    OutSystems combines low-code application building with database, authentication, API, and mobile publishing features.

    7.0 Free plan Visit site
  14. 14

    Thunkable

    Free plan AndroidAPIiPhone+1

    Thunkable offers several ways to build and publish apps, with a free plan for public projects.

    7.0 Free plan · paid from $18/mo Visit site
  15. 15

    Noodl

    Free plan AndroidAPIiPhone+5

    Noodl combines visual low-code development, integrated backend services, and prompt-based AI assistance in an open-source package.

    6.9 Open source Visit site
  16. 16

    Glide

    by Glide
    Free plan Web

    GlideOS combines app creation, workflow automation, data questions, and service integrations for internal business tools.

    6.8 Free plan · paid from $25/mo Visit site
  17. 17

    Zoho Creator

    Free plan WebiPhoneAndroid

    Choose Zoho Creator if you want to build web or mobile apps with a built-in database and mobile publishing, and its free allowance fits your needs.

    6.8 Free plan · 15-day trial Visit site
  18. 18

    Pory

    Free plan Web

    Pory combines portal building, records management, access controls, and workflows for external users. Its free tier is small, and organizations needing SSO must consider the stated product limitation.

    6.7 Free plan · paid from $99/mo (annual) Visit site
  19. 19

    Softr

    by Softr
    Free plan Web

    Choose Softr if you want a web platform that combines app publishing with a database, user authentication, and API integrations.

    6.6 Free plan · paid from $19/mo (annual) Visit site
  20. 20

    WeWeb

    by WeWeb
    Free plan Web

    WeWeb combines web app building with databases, authentication, APIs, and mobile publishing.

    6.5 Free plan · paid from $13/mo Visit site
  21. 21

    Caspio

    by Caspio
    Free trial AndroidAPIiPhone+3

    Caspio brings application building, database management and deployment options into one platform, with unlimited app users across listed plans.

    6.3 Visit site
  22. 22

    AppInstitute

    by AppInstitute
    Paid WebiPhoneAndroid
    5.9 From $49/mo (annual) · 30-day trial Visit site
  23. 23

    Wappler

    by Wappler
    Free trial AndroidiPhoneLinux+3

    Wappler combines visual interface design, backend workflows, databases, integrations, and AI-assisted development across supported desktop and mobile targets.

    5.9 14-day trial Visit site
  24. 24

    WaveMaker

    Free trial AndroidAPIiPhone+2

    Choose WaveMaker if your enterprise or ISV team needs to generate API-driven web or mobile applications while retaining developer review of generated code.

    5.9 Pricing on request · 30-day trial Visit site
  25. 25

    Betty Blocks

    by Betty Blocks
    Paid WebiPhoneAndroid

    Betty Blocks provides cross-platform app building with core data, identity, integration, and publishing capabilities.

    5.8 From €1,500/mo Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare free-plan limits, trial terms, paid starting prices, builder mode, app targets, hosted backend options, source-code export, custom domains, and published app limits. If code access matters, review the licence and export terms before choosing.

Questions

Do startup app builders offer free plans?

A free plan is offered by tools in this category, while other tools are paid or provide a trial. Check the plan terms for the builder you are considering.

Which platforms can these app builders support?

Platforms represented in this category include web, Android, iOS, APIs, macOS, and Windows. Check the app targets for a specific tool.

Can I export source code?

Source-code export is a comparison point for this list. Check the specific tool's plan and licence terms to confirm whether export is available.

Are custom domains supported?

Custom-domain support is compared for the tools here. Review the plan details for the builder you choose.

What paid prices are listed?

Listed starting prices include $16 per month on annual billing, $19 per month, $25 per month, and $165 per month, depending on the tool. Check current plan terms.

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