Synq vs Clerk.
Both ship a great React SDK with the same hook shape. The differences are in the methods (Telegram, Matrica, Solana SIWS), the platform (real OIDC issuer, no badge), and the agent-era surface (device flow + llms.txt).
Feature by feature
A direct read of what each platform ships today.
| Feature | Clerk | Synq |
|---|---|---|
| Google / Apple / Microsoft sign-in | ||
| BYO OAuth credentials | ||
| Telegram sign-in | Custom only | |
| Matrica sign-in | ||
| Sign-In With Solana | ||
| Multi-wallet linking per user | ||
| Device flow (CLIs + AI agents) | ||
| M2M client_credentials | ||
| Standards-compliant OIDC issuer | Limited | |
| No "Powered by" badge | ||
| Per-Brand isolation (one Org, many Brands) | Per app | |
| React + Next.js + RN + Solana Mobile SDKs | Most | |
| llms.txt for AI coding agents |
The deciding factors
Pick Clerk if
You only need Google + Apple + Microsoft + email and Clerk’s component library matches your design system. The product is mature and the DX is excellent inside its scope.
Pick Synq if
You need consumer providers Clerk does not ship (Telegram, Matrica), web3 (Solana SIWS, wallet linking), the agent-era flow (device flow for CLIs and AI), or you want zero proprietary surface — a real OIDC issuer your code can leave anytime.
Already using Clerk?.
The migration is the cleanest in the list. Same hooks, same component shape, no SDK lock-in on the other side.