Best offer on record: Sentry Developer Plan (Free) — perpetual free tier. 3 verified findings, checked 2026-10-22.
Offers
Sentry Developer Plan (Free) — perpetual free tier high confidence
Sentry's 'Developer (Free)' plan is free forever: 5,000 errors/mo, 5,000,000 spans/mo, 50 session replays/mo, 5 GB logs/mo, 5 GB application metrics/mo, 1 uptime monitor, 1 cron monitor, 20 metric monitors, 10 custom dashboards, 1 GB attachments, 100 Size Analysis builds, 30-day data retention/lookback, unlimited projects, data residency available. NOT included on this tier: UI Profiling, Continuous Profiling. Pricing page tagline: 'Start free on the Developer plan forever.' Free plan is one of four tiers: Developer (free), Team, Business, Enterprise.
Eligibility
Anyone (open registration, no .edu email or startup status required — students and startups qualify on equal footing with everyone else). Hard cap: 1 user. No region limits stated; data residency offered. Credit card NOT required.
How to claim
Sign up free at https://sentry.io/signup (create org, add projects, paste DSN into apps). No credit card, no trial needed, no eligibility gate.
Expiry
Never — explicitly 'forever' on the pricing page; no sunset clause published.
Gotchas
Monthly quotas are hard caps: events/attachments over quota are simply not accepted (silent data loss, e.g., a single crash bug can blow 5K errors in a day). 1 user = any teammate needs Team ($29/mo or $26/mo annual) or Business ($89/mo or $80/mo annual). If you trial Business and don't upgrade, you are silently downgraded to this tier with limits on features.
14-day Business free trial for all new accounts high confidence
Per docs.sentry.io/pricing: 'All new Sentry accounts come with a 14-day free trial period' — the initial trial is the Business plan ('the initial 14-day Business trial'). During it you have Business-plan features (unlimited users, unlimited dashboards, SAML/SCIM, 90-day retention, etc.). Pricing page: 'try Business for 14 days with no credit card.' No dollar trial credits exist — it is a time-boxed plan trial, not a credit balance.
Eligibility
Every new Sentry org/account, one time. No .edu, startup, or region conditions stated; credit card explicitly NOT required.
How to claim
Just create a new Sentry account (sentry.io/signup). All new accounts get it automatically; no application or credit card. Upgrade via Settings > Billing if you choose to stay on Business ($89/mo monthly, $80/mo annual).
Expiry
14 days from account creation. After it ends: 'Users who haven't upgraded by the end of their free trial will remain on the free Developer plan with limited features.' No auto-billing since no card is on file.
Gotchas
Trial is 14 days of Business features, then downgrade to the 1-user/5K-error Developer caps — if your app is error-heavy, expect dropped events post-trial. New accounts can only request the separate one-time product trial on day 15 (after this trial ends).
One-time 14-day product trials (incl. Seer AI debugger) — unlimited events during trial high confidence
Sentry offers a one-time 14-day trial of individual products not already in your plan. Docs: 'During your 14-day product trial, you'll be able to send us an unlimited number of events' and 'You won't be billed for any data you've used during the 14-day trial period.' This includes add-on/subscription products (e.g., Seer AI debugger trial — the docs reference a dedicated Seer trial, with no published duration/eligibility beyond the general rules; Seer itself is a paid subscription, current pricing $40/active contributor/month after legacy pricing was sunset Jan 2026). No dollar-value trial credits exist.
Eligibility
Per product, once per org ('each org can only trial each product once'). Free (Developer) accounts may request at any time; new accounts from day 15; Team/Business for products outside their plan. No credit card requirement stated; no .edu/startup conditions.
How to claim
Request from the org (Settings > Billing/plan area, 'request a product trial'; Seer via 'Start Trial' in Settings). Free accounts: any time; new accounts: day 15; existing Team/Business: any time for products not in their plan.
Expiry
14 days per product trial; strictly one-time per product per org — a second request is not possible.
Gotchas
'Unlimited events' applies only inside the 14-day window; afterwards the product is paid or unusable. Trial-vs-free gotcha: this is a time-boxed add-on trial, not a free plan. Seer-specific trial terms aren't fully published (see sunset notes re: Seer pricing change).
No Sentry-specific education, student (.edu), startup, or nonprofit discount program was found on any official page checked today: sentry.io/education/, sentry.io/startups/ and sentry.io/nonprofit/ are not real program pages (machine-UI 404s), and neither the current pricing docs (docs.sentry.io/pricing) nor the legacy pricing docs mention any such program. The free offers for students/startups are therefore the general-purpose ones above (Developer free plan + 14-day trials), which carry no special eligibility. 2025-2026 changes: (1) Legacy Seer pricing ($20/month + $25 event credits) stopped being offered as an add-on as of January 2026; current Seer is $40/active contributor/month — so the 'Seer free credits' offer is gone. (2) The entire pre-June-11-2024 pricing structure (including legacy 'Performance Units' for spans) was replaced by per-product quotas (errors/spans/replays/logs/metrics as separate lines) — a 2024 change, kept as context. No 2025-2026 changes to the Developer free plan or the 14-day trials were found on the current pages (verified 2026-10-22). Paid reference points: Team $29/mo monthly or $26/mo annual (50K errors/mo, 90-day retention, unlimited users); Business $89/mo monthly or $80/mo annual; Enterprise custom. Note: web search was unavailable this session (budget exhausted), so the 'no education/startup program' conclusion rests on direct page checks of sentry.io + docs.sentry.io rather than a full web sweep.