feat

B tier on Feature Flag SoftwareScore 7.2 · #5 of 25

Android app: Yes
Free plan: Yes
Paid plans from: $19/mo
Runs on: Android, api, iOS, Web

feat.so

Summary

feat is a hosted feature-flag platform aimed at early engineering teams. Its server SDKs evaluate flags locally, without a network call for each read, and changes stream to connected SDKs in under a second. Targeting rules can combine conditions across users, devices, organizations, sessions, and requests with AND and OR logic. Sticky percentage rollouts keep a user, device, or organization on the same variation across requests and sessions. First-party SDKs are available for Node.js, Bun, Deno, Go, Python, Ruby, browser JavaScript, and Flutter/Dart; feat also supplies OpenFeature providers for web, Node.js, and Dart. Metric sources include Segment, Mixpanel, PostHog, and custom sources. The free plan includes 7,500 MAU, 100 server connections, two projects, unlimited environments, and unlimited flags. Starter is $19.00 USD per month, with annual billing listed at $15/mo. Built-in statistical experiments and Slack integration are listed as coming in Q3 2026 rather than as current features.

Who it is for

It suits early engineering teams seeking hosted flag management with local server-side evaluation, flexible targeting, and percentage rollouts. The listed SDKs and metric integrations may fit teams using those tools and languages.

What is good

Server SDK flag reads need no per-read network call.
Changes stream to connected SDKs in under a second.
Targeting combines conditions with AND and OR.
Sticky rollouts preserve assigned variations across sessions.
Free plan includes unlimited environments and flags.

What to know first

Free plan is limited to 7,500 MAU.
Free plan includes 100 server connections and two projects.
Statistical experiments are listed as coming in Q3 2026.
Slack integration is listed as coming in Q3 2026.

Verdict

feat combines local flag evaluation with flexible targeting and sticky rollouts, and its free plan lists a useful set of included limits. Treat the stated experiments and Slack integration as upcoming rather than available features.

feat plans and pricing

All plans

Free Free 7,500 MAU · 100 server connections · 2 projects · unlimited environments · unlimited flags feat.so · 1 Oct 2026

Starter $19/mo $15/mo billed annually 25,000 MAU · 250 server connections · 90-day audit log · email support 48h feat.so · 1 Oct 2026

Growth $49/mo $39/mo billed annually 100,000 MAU · 750 server connections · 1-year audit log · 99.9% SLA · email support 24h feat.so · 1 Oct 2026

Scale $149/mo $119/mo billed annually 500,000 MAU · 2,500 server connections · 3-year audit log · email support 8h feat.so · 1 Oct 2026

Elastic $299/mo $239/mo base billed annually 1M MAU included · $0.20 per 1,000 MAU above 1M · uncapped server connections feat.so · 1 Oct 2026

Enterprise Not published Custom contracts · SCIM · private tenancy · data residency · dedicated CSM feat.so · 1 Oct 2026

Compared on feature flag software

Free plan: Yesfeat.so
SDK languages: JavaScript, Go, Python, Ruby, Cloudflare Workersfeat.so
Targeting rules: Yesfeat.so
Percentage rollouts: Yesfeat.so
User segments: Yesfeat.so
Audit log: Yesfeat.so
Approval workflows: Yesfeat.so

Facts

Product: feat is a hosted feature-flag platform for early engineering teams.feat.so · 1 Oct 2026
Evaluation: Server SDKs evaluate flags locally with no network call per flag read, while changes stream to connected SDKs in under a second.feat.so · 1 Oct 2026
Targeting: Targeting rules can combine conditions across users, devices, organizations, sessions, and requests using AND and OR.feat.so · 1 Oct 2026
Rollouts: Sticky percentage rollouts keep the same user, device, or organization on the same variation across requests and sessions.feat.so · 1 Oct 2026
Experiments: A built-in statistical engine, variant tracking, metric integrations, and auto-advance gradual rollouts are listed as coming in Q3 2026.feat.so · 1 Oct 2026
SDKs: First-party SDKs are available for Node.js, Bun, Deno, Go, Python, Ruby, browser JavaScript, and Flutter/Dart.docs.feat.so · 1 Oct 2026
OpenFeature: feat ships providers for the OpenFeature web, Node.js, and Dart SDKs.docs.feat.so · 1 Oct 2026
Integrations: Pluggable metric sources include Segment, Mixpanel, PostHog, and custom sources; Slack integration is listed as coming in Q3 2026.feat.so · 1 Oct 2026
Privacy: Backend SDKs send no evaluation context to feat, while browser SDKs report only hashed identifier-and-kind pairs for MAU counting.feat.so · 1 Oct 2026
Security: Customer-facing endpoints use TLS 1.2+ and HSTS, with managed-service encryption at rest for Postgres, R2, and KV.feat.so · 1 Oct 2026
Compliance: SOC 2 Type I scaffolding is in progress, with Type II planned after the standard observation window; ISO 27001 is on the roadmap.feat.so · 1 Oct 2026
Support: Free includes community support; Starter, Growth, and Scale list email response targets of 48 hours, 24 hours, and 8 hours respectively.feat.so · 1 Oct 2026
Audit history: Audit-log retention is 30 days on Free, 90 days on Starter, 1 year on Growth, and 3 years on Scale.feat.so · 1 Oct 2026
Company: feat labs, inc. is based in India and was founded by Vishnu Mohanan.feat.so · 1 Oct 2026