Life & fun · alternatives · 2026

24 alternatives to Simo

The judgment layer for software that acts

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 3 we have checked on their own sites, 3 of them free or with a free tier.

1. 1
   judged.systems▲69

   The judgment API platform for support systems.

   8d ago · judged.systems · its alternatives →

2. 2
   Preferfree tier, from $24/mo▲201

   The execution layer for AEO

   17d ago · tryprefer.com · its alternatives →

3. 3
   Microsoft-Decision-1▲173

   Microsoft’s decision model for agents and workflows

   6d ago · commandline.microsoft.com · its alternatives →

4. 4
   Tidenfree tier, from $49/mo▲207

   Intent verification for coding agents

   6d ago · tiden.ai · its alternatives →

5. 5
   easyspecs.aifree tier, from $5.42/mo▲161

   The spec review platform

   Sep 2026 · easyspecs.ai · its alternatives →

6. 6
   Ana by Vertice▲88

   The AI negotiation agent for software purchases

   15d ago · vertice.one · its alternatives →

7. 7
   Clef▲128

   Open-source decision models from Cloudflare

   14d ago · blog.cloudflare.com · its alternatives →

8. 8
   SelfJev▲80

   Jev-compatible self-hosted decisions mode

   17d ago · selfjev.dev · its alternatives →

9. 9
   Bruto▲80

   A task board that lives in your repo, for you and your AI

   21d ago · jimy-k4.github.io · its alternatives →

10. 10
    ej▲64

    An 11MB local model for typed decisions in one pass

    6d ago · hitl.systems · its alternatives →

11. 11
    Aster by AsterWise▲65

    Intelligent model routing for code, agents and workflows

    14d ago · asterwise.dev · its alternatives →

12. 12
    Aperture▲63

    An AI code editor that checks its own work

    12d ago · github.com · its alternatives →

13. 13WA
    walrus.ai – automated end-to-end tests in one line of code▲7

    2019 · walrus.ai · its alternatives →

14. 14LA
    Layers: A multidimensional code environment▲7

    2016 · indiegogo.com · its alternatives →

15. 15CA
    Clause: an expressive JavaScript contract system, inspired by clojure.spec▲8

    2017 · clause.js.org · its alternatives →

16. 16
    Argument Analysis Platform▲6

    2015 · arguman.org · its alternatives →

17. 17KA
    Kweb, a Kotlin web framework based on the observer pattern▲5

    2019 · docs.kweb.io · its alternatives →

18. 18SM
    Silk – Markdown driven API tests▲8

    2016 · medium.com · its alternatives →

19. 19
    Alpha release of Deo (a template manager)▲7

    2022 · old.reddit.com · its alternatives →

20. 20RA
    Robocop – Automated code reviews on GitHub▲7

    2015 · robocop.siddharthkp.com · its alternatives →

21. 21AA
    ATAC, an event verification platform evidence based▲8

    2025 · atac.seraum.com · its alternatives →

22. 22AR
    An REPL oriented testing framework for Clojure(script)▲7

    2021 · fctorial.github.io · its alternatives →

23. 23NC
    Node-cli-proxy: web front end for interactive command-line programs▲8

    2014 · tmskfk.com · its alternatives →

24. 24CA
    Codemonkey.ai – BI for Software Development Leaders▲7

    2017 · codemonkey.ai · 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 →