Authentication · decision tool

What Better Auth really costs at your usage

Better Auth priced at YOUR usage from verified pricing pages — no free tier — paid from day one. See the free-tier ceiling, the per-unit overage, and exactly when it starts costing real money.

Prices verified 2026-07-15 against official pricing pages · fit weights are our estimates (see methodology) · share the URL to share your configuration

As of Jul 2026, with 50,000 monthly active users, a $50 budget for this slot, Better Auth ranks first for these inputs at 77% fit and a StackSays-estimated $0/month. Fit weights are our estimates; prices trace to official pages. Change any input below and the verdict recomputes.

Your situation

The verdict updates as you move these.

Budget for this slot ($/mo)what you'd accept paying for the auth provider layerTeam size1 = solo; bundled platforms save glue time for small teams

Clear pick for your inputs

Better Authfit 77% · est $0/mo

The 2026 open-source default — auth as a library in YOUR database, $0 per user

Better Authfit 77%

$0/mo

Comparing 1 tools head-to-head. Open the full field (7 options) →

The decision, in plain words

For a solo builder at 50,000 monthly active users and a $50.00/mo budget for the auth provider slot, Better Auth leads at 77% fit and $0/mo. The two rules doing the work: budget fit (Runs free at your usage — $0 vs your $50/mo budget); batteries included (Bundles organizations/teams, enterprise SSO — fewer services to glue at team size 1).

Honest weak spot of the pick: no free tier — paying from day one.

Generated from the calculation above — every number traces to the sourced data; nothing here is written by an AI making things up.

Why Better Auth scores 77%

Budget fit (weight 30, our estimate) — Runs free at your usage — $0 vs your $50/mo budget+30

Batteries included (weight 12, our estimate) — Bundles organizations/teams, enterprise SSO — fewer services to glue at team size 1+8

Exit cost (weight 4, our estimate) — Users live in YOUR database — switching providers never holds your users hostage+4

Ecosystem maturity (weight 8, our estimate) — growing — our estimate from ecosystem age, docs and hiring pool-1.6

Free-tier runway (weight 10, our estimate) — No free tier — paying from day one-6

Total (lines sum exactly)34.4

Possible range −64…+64 (sum of active rule weights) · fit % = (total + max) / (2 × max)(34.4 + 64) / 128 = 77%

How the $0/mo estimate is calculated

Note — Framework is free; users live in your own database at no per-MAU cost. Optional cloud dashboard: $0 starter / $20 Pro (audit logs + security detections), SSO connections $50/mo each after the first$0

Monthly total (lines sum exactly)$0

What could change this verdict

No single input change within the tested range changes the winner.

Cost risk

Estimated now (StackSays estimate, not your final bill)$0/mo · Open source (self-hosted)

Free-tier statusNo free tier — paid from the first unit

Official prices verified 2026-07-15; calculation is deterministic code over those prices.

At a glance

Tool	Free tier	Paid entry	Verified
Better Auth	No free tier	—	2026-07-15

Where did you land?anonymous, one click

Data sources

Tool	Source	Verified
Better Auth	Better Auth pricing page	2026-07-15

A monitor re-checks these pages for changes; when a vendor moves a price, the date updates and every verdict recomputes.

Keep deciding