Quonfig vs Flagsmith

Quonfig's 9 native SDKs (Node, Go, Ruby, Python, .NET, Java, browser JavaScript, React, React Native) are at 1.0, plus 7 official OpenFeature providers. The qfg CLI is pre-1.0. Typed code generation targets TypeScript.

A git repo you own vs a database you query

The core architectural difference is where your config lives. Quonfig stores every workspace as a real git repo — one JSON file per flag or config key — so your change history is git history: a real author, an exact diff, and a timestamp on every commit, with no retention limit. You can clone the whole thing anytime with qfg pull or plain git, and there are no export fees.

Flagsmith is open-source and self-hostable, which means you can run and back up the system yourself — a genuine strength. But the config itself lives in a relational database (Postgres or SQLite), and its history is a dashboard audit log rather than a repo you can clone, diff with familiar tools, and hand to an AI agent as plain files. When agents are writing most of your config changes, having every change land as a reviewable git commit is the difference that compounds.

Per-request billing vs local in-process evaluation

Quonfig's backend SDKs — Node, Go, Ruby, Python, Java, and .NET — download your full config once and evaluate every flag check locally, in-process, in sub-millisecond time with no network round trip per evaluation. Because flag checks never hit a metered endpoint, your bill does not grow with how often your code reads a flag. Pricing is fully public, with a live calculator and free seats, and runs roughly 10x cheaper than the major platforms at scale.

Flagsmith's paid tiers are built around per-request and per-seat pricing (roughly $40 and $250), and its free tier is a relatively stingy ~50k requests/month. Flagsmith does support local evaluation, but the default and free-tier flow is request-metered, so a chatty service or a sudden traffic spike can move your bill in ways that are hard to predict. Quonfig's flat, usage-tiered model is designed to give the same answer for a hobby project and a Series D company.

SDK breadth, typed generation, and staying up

Quonfig ships nine native SDKs at 1.0 — Node, Go, Ruby, Python, .NET, Java, browser JavaScript, React, and React Native — plus seven official OpenFeature providers (Node, Web, Go, Ruby, Python, .NET, Java). Flagsmith also offers broad SDK coverage and OpenFeature support, so both cover the common stacks well; the difference is that Quonfig adds typed code generation, where qfg generate parses your string configs and emits type-safe TypeScript render functions with each Mustache variable checked as a parameter.

Because backend SDKs serve from locally cached config, your app keeps evaluating flags during a delivery outage instead of failing open or closed. On top of that, config delivery runs across redundant, independent infrastructure (a second provider, warmed from GitHub), so your backend keeps serving on locally-cached config even if our primary region has an outage.