The scheduler is trivial — a queue and a cron. The catch is on the platforms' side: every network guards its posting API differently, and the approval hoops are the real cost, not the code.
VIBE SCORE 90/100
The parts this build actually needs, each rated on its own — the average is the Vibe Score above.
| Landing page | 99 |
| CRUD database | 95 |
| OAuth | 77 |
Two real costs, not just "free": the AI agent's own usage, and hosting once it's running. Both are estimated from this app's own effort rating and component list — see the assumptions on the method page.
| AI agent — with a subscription (Claude Pro/Max, Cursor, etc.) | $0 marginal |
| AI agent — pay-per-use API, no subscription | $43–$86 one-time |
| Hosting, once it's running | $0/mo (free tier) |
| Domain name, if you want your own | ~$12/yr |
Buffer costs $6/mo. Even paying per-token with no subscription, and accounting for hosting, this build pays for itself in about 15 months.
Don't feel like building it? These are already made, open-source, and free.
Borderline. The scheduler is trivial — a queue and a cron. The catch is on the platforms' side: every network guards its posting API differently, and the approval hoops are the real cost, not the code.
Buffer costs $6/mo (about $72/yr) as of 2026-08. That's what a working rebuild would save you.
Some platforms' API access requires app review, business verification, or fees — per network, forever Preview rendering for every network's card format Analytics that merge all networks in one view
Yes — Postiz, Mixpost are open-source options worth trying before you build your own. Details are in the standard parts section on this page.
Buffer compared directly against the products people actually weigh it up against — same build questions, different answers.
Closest matches on the register — ranked by the build parts they share with Buffer, not just by category.
Browse all marketing tools · every comparison · how scoring works · the full register
An occasional email when new apps get reviewed — the verdict, the effort, and what changed. No tracking pixels, no drip sequence, one click to leave.