Convex

Summary

Convex is reactive backend-as-a-service (category: Backend & Database). VibeToolRank agent test score: 8.7/10 (tested 2026-10-16, 3 runs, self-hosted/OSS), #2 of 2 tested Backend & Database tools. Pricing: Starter $0 + usage; Professional $25/dev/mo. Free tier: Yes: 1M function calls, 0.5 GB DB.

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Pricing and free tier

Pricing

Starter $0 + usage; Professional $25/dev/mo

Free tier

Yes: 1M function calls, 0.5 GB DB

Last checked

2026-10-16

Pricing: verified-official source · verified 2026-10-16 (full-page-read)

Agent test verdict

Edition tested Open-source local backend (anonymous local deployment via Convex CLI), not Convex Cloud. Results may differ for the hosted product.

Tested 2026-10-16 · 3 runs · rubric v0.1 (provisional thresholds). 3/3 runs: push functions, insert and query rows, arg validation, all OK in about 7-8s each (warm). The self-hosted Docker images on ghcr.io returned denied for anonymous pulls.

DimensionScore /10
Outcome (40%)9
Speed (15%)9
Cost (15%)10
Developer experience (15%)7
Reliability (15%)8
Overall8.7

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