Dev tools · alternatives · 2026

24 alternatives to Calvin

Open source application environment for IoT development

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Calvin launched in 2015; newer entries below may have overtaken it.

1. 1
   Tray.io▲131

   App development for everyone

   2014 · tray.ai · its alternatives →

2. 2
   Fosshub▲79

   An open source for free and open source tools

   2015 · fosshub.com · its alternatives →

3. 3
   Apache Weex▲127

   A framework for building mobile cross-platform UIs

   2017 · incubator.apache.org · its alternatives →

4. 4
   Restyaboard▲197

   An open source alternative to Trello

   2015 · restya.com · its alternatives →

5. 5
   Rover▲116

   iBeacon platform and open source SDK

   2014 · dev.roverlabs.co · its alternatives →

6. 6
   Apitronics▲75

   Nest for Farming

   2014 · apitronics.com · its alternatives →

7. 7
   Calaos▲88

   Open source home automation

   2015 · calaos.fr · its alternatives →

8. 8
   Boundary Free▲74

   Server and App Monitoring

   2014 · domaineasy.com · its alternatives →

9. 9
   PlatformIO▲6

   an open source ecosystem for IoT development

   2017 · platformio.org · its alternatives →

10. 10
    Spark▲85

    Build internet-connected hardware.

    2014 · particle.io · its alternatives →

11. 11
    ReadMe.io▲39

    A Developer Hub for your open source software

    2014 · readme.com · its alternatives →

12. 12
    Spiral 3.0▲81

    Proximity-based community forum

    2014 · getspiralapp.com · its alternatives →

13. 13
    Headstart.io▲61

    An easy-to-use automated front-end setup

    2014 · headstart.io · its alternatives →

14. 14
    FarmLogs▲118

    Data Driven Farming

    2014 · bushelpowered.com · its alternatives →

15. 15
    Reactor▲86

    Build mobile apps with deep WordPress integration

    2015 · reactor.apppresser.com · its alternatives →

16. 16
    Yett▲78

    The first platform for Stellar gateways

    2014 · its alternatives →

17. 17
    Slack▲93

    Platform for team communication

    2015 · slack.com · its alternatives →

18. 18
    Particle▲73

    Prototype, scale, and manage your Internet of Things

    2015 · particle.io · its alternatives →

19. 19
    Artoo▲61

    Framework for physical devices written in Ruby

    2015 · its alternatives →

20. 20
    NimbusFoundry▲59

    Framework for building front-end collaborative apps

    2014 · nimbusfoundry.com · its alternatives →

21. 21
    Helios▲66

    An extensible open-source mobile backend framework

    2014 · globalli.io · its alternatives →

22. 22
    Flowhub▲85

    Let's Make Code More Playful (Beta Open)

    2014 · 12bet.review · its alternatives →

23. 23
    Rice▲81

    A location based marketplace for iOS

    2014 · its alternatives →

24. 24
    CircuitHub▲63

    AWS for hardware startups and makers.

    2014 · circuithub.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →