Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. KillerTask: the solution to AsyncTask implementation (in Kotlin) launched in 2016; newer entries below may have overtaken it.

1. 1
   Code Podcast 3: Concurrency – Event Loop & Coroutines▲54

   Concurrency in UIKits, browsers and web servers

   2016 · soundcloud.com · its alternatives →

2. 2KA
   Kweb, a Kotlin web framework based on the observer pattern▲5

   2019 · docs.kweb.io · its alternatives →

3. 3
   Swimmer▲2

   An async task pooling and throttling utility for JS

   2018 · github.com · its alternatives →

4. 4
   Timekit▲97

   A comprehensive scheduling API (pre-launch)

   2014 · timekit.io · its alternatives →

5. 5
   Software Engineering Daily: Kotlin with Hadi Hariri▲56

   The world through the lens of software.

   2017 · softwareengineeringdaily.com · its alternatives →

6. 6
   FlowTime▲72

   A Pomodoro-driven timer for Chrome

   2015 · chromewebstore.google.com · its alternatives →

7. 7
   Kotlin 1.0▲6

   Pragmatic programming language for JVM and Android

   2016 · blog.jetbrains.com · its alternatives →

8. 8
   The Changelog - #189: JSON API with Yehuda Katz▲66

   Yehuda's start as a programmer and the spec for building API

   2016 · changelog.com · its alternatives →

9. 9TC
   TaskLite – CLI Task Manager Built with Haskell and SQLite▲8

   2019 · tasklite.ad-si.com · its alternatives →

10. 10SA
    Starlette – An asyncio Web framework for Python▲8

    2018 · starlette.io · its alternatives →

11. 11NN
    Nhx – Node.js Hybrid eXecutor (a uvx inspired tool)▲6

    Jan 2026 · npmjs.com · its alternatives →

12. 12
    Razorframe▲5

    a Node.js library for kickstarting real-time apps at scale

    2016 · github.com · its alternatives →

13. 13JE
    Jnigen – Experimental Java interop for Dart / Flutter on Android▲9

    2023 · mahesh-hegde.github.io · its alternatives →

14. 14SR
    Space Rock, a realtime JavaScript framework▲7

    2015 · space-rock.meteor.com · its alternatives →

15. 15
    Curveball, a microframework in TypeScript with AWS Lambda support▲7

    2020 · evertpot.com · its alternatives →

16. 16AA
    An API schedule reminders▲5

    2017 · reminders.company · its alternatives →

17. 17
    AsyncNinja▲5

    Concurrency library for Swift

    2016 · async.ninja · its alternatives →

18. 18JM
    Jindo – minimalist reactive backend for JavaScript applications▲7

    2016 · jindo.io · its alternatives →

19. 19LA
    Lightmod, an all-in-one tool for full stack Clojure▲7

    2017 · sekao.net · its alternatives →

20. 20
    Nullstack – A framework for full stack JavaScript components▲7

    2023 · nullstack.app · its alternatives →

21. 21TS
    Treenga – simple task management for remote teams▲5

    2020 · treenga.com · its alternatives →

22. 22SM
    Silk – Markdown driven API tests▲8

    2016 · medium.com · its alternatives →

23. 23
    Async Transducers with Promises▲5

    2014 · github.com · its alternatives →

24. 24
    rest.quest – A tiny, local-first todo webapp with S3 sync▲6

    2022 · rest.quest · 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 →