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Spec score 9.3 #2 of 27 in Feature Flag Software

What it is

feat is a hosted feature-flag platform for early engineering teams. Server SDKs evaluate flags locally, so each flag read does not require a network call; changes stream to connected SDKs in under a second. Targeting rules combine conditions across users, devices, organizations, sessions, and requests using AND and OR. 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, with OpenFeature providers for web, Node.js, and Dart. Metric sources include Segment, Mixpanel, PostHog, and custom sources. The Free plan costs nothing and includes 7,500 MAU, 100 server connections, two projects, unlimited environments, and unlimited flags. Starter costs $19 a month, with annual billing listed at $15/mo. Built-in statistical experiments, variant tracking, metric integrations, auto-advance gradual rollouts, and Slack integration are listed as coming in Q3 2026, not current features.

Spec sheet

What it does
feat is a hosted feature-flag platform for engineering and product teams.Read 15 Oct 2026 · feat.so
Product
feat is a hosted feature-flag platform for early engineering teams.Read 1 Oct 2026 · feat.so
Integrations
Pluggable metric sources include Segment, Mixpanel, PostHog, and custom sources; Slack integration is listed as coming in Q3 2026.Read 1 Oct 2026 · feat.so
Security
Customer-facing endpoints use TLS 1.2+ and HSTS, with managed-service encryption at rest for Postgres, R2, and KV.Read 1 Oct 2026 · feat.so
Privacy
Backend SDKs send no evaluation context to feat, while browser SDKs report only hashed identifier-and-kind pairs for MAU counting.Read 1 Oct 2026 · feat.so
Compliance
SOC 2 Type I scaffolding is in progress, with Type II planned after the standard observation window; ISO 27001 is on the roadmap.Read 1 Oct 2026 · feat.so
Support
Free includes community support; Starter, Growth, and Scale list email response targets of 48 hours, 24 hours, and 8 hours respectively.Read 1 Oct 2026 · feat.so
Headquarters
IndiaRead 28 Sep 2026 · feat.so
Company
feat labs, inc. is based in India and was founded by Vishnu Mohanan.Read 1 Oct 2026 · feat.so
Approvals
Production changes can require per-environment approvals, configurable approver counts, comments, and expiration.Read 15 Oct 2026 · feat.so
Audit history
Audit-log retention is 30 days on Free, 90 days on Starter, 1 year on Growth, and 3 years on Scale.Read 1 Oct 2026 · feat.so
Audit log
Every plan includes an audit history recording who changed what and why.Read 15 Oct 2026 · feat.so
Client evaluation
Browser and mobile SDKs evaluate remotely and receive resolved values rather than the full rules datafile.Read 15 Oct 2026 · docs.feat.so
Company legal name
The legal entity is feat labs, inc., incorporated in Delaware, United States.Read 15 Oct 2026 · feat.so
Company location
The about page describes feat labs, inc. as based in India.Read 15 Oct 2026 · feat.so
Compliance limitation
SOC 2 Type I preparation is in progress, SOC 2 Type II is planned, and ISO 27001 is on the roadmap.Read 15 Oct 2026 · feat.so
Documentation
The documentation includes quickstart, concepts, SDK guides, OpenFeature, API-key, evaluation, rollout, and operator references.Read 15 Oct 2026 · docs.feat.so
Evaluation
Server SDKs evaluate locally in process, so flag reads do not make a network request.Read 15 Oct 2026 · docs.feat.so
Experiments
A built-in statistical engine, variant tracking, metric integrations, and auto-advance gradual rollouts are listed as coming in Q3 2026.Read 1 Oct 2026 · feat.so
Experiments limitation
A built-in statistical engine, variant tracking, metric integrations, and automatic rollout advancement are listed as future Q3 2026 work.Read 15 Oct 2026 · feat.so
Feature flags
Flags support boolean, string, number, and JSON values.Read 15 Oct 2026 · feat.so
Founder
Vishnu Mohanan identifies himself as feat's founder and says he is currently the entire engineering team.Read 15 Oct 2026 · feat.so
GitHub activity
The SDK repository page showed 19 commits, zero stars, and one fork when accessed.Read 15 Oct 2026 · github.com
GitHub license
The official JavaScript/TypeScript SDK repository is published under the MIT license.Read 15 Oct 2026 · github.com
GitHub repository
The public feathq/js-sdk repository describes itself as the official JavaScript/TypeScript SDK for feat.Read 15 Oct 2026 · github.com
Hosted-service terms
The terms describe feat as a hosted platform and prohibit reverse engineering, scraping, and rate-limit bypass attempts.Read 15 Oct 2026 · feat.so
IT limitation
The documentation says native Go, Python, and Ruby OpenFeature providers are planned rather than available today.Read 15 Oct 2026 · docs.feat.so
Kill switch
Turning a flag off propagates to connected SDKs over the live stream in under a second.Read 15 Oct 2026 · feat.so
Launch timing
The maker says version 1.0 shipped in May 2026.Read 15 Oct 2026 · feat.so
Node requirements
The JavaScript SDK requires Node.js 18 or newer and also supports Bun and Deno.Read 15 Oct 2026 · github.com
OpenFeature
OpenFeature providers are available for JavaScript and Dart, while Go, Python, and Ruby providers are planned.Read 15 Oct 2026 · docs.feat.so
Percentage rollouts
Rollouts use stable bucketing so the same context keeps the same variation while weights remain unchanged.Read 15 Oct 2026 · docs.feat.so
Privacy model
Backend SDKs send no evaluation context to feat; browser SDKs send identifiers for MAU counting and hash them at the edge.Read 15 Oct 2026 · feat.so
Progressive rollouts
Progressive rollouts can automatically advance through scheduled percentage steps.Read 15 Oct 2026 · docs.feat.so
Recovery targets
Postgres point-in-time recovery is retained for seven days, with a five-minute RPO target and four-hour RTO target.Read 15 Oct 2026 · feat.so
REST API
The maker advertises a REST API, but says its reference documentation is still in progress.Read 15 Oct 2026 · feat.so
Rollouts
Sticky percentage rollouts keep the same user, device, or organization on the same variation across requests and sessions.Read 1 Oct 2026 · feat.so
SDK extensibility
The JavaScript SDK includes an OpenFeature provider and supports disabling streaming in favor of polling.Read 15 Oct 2026 · github.com
SDK languages
First-party SDKs are listed for Node.js, Go, Python, Ruby, browser JavaScript, and Flutter/Dart.Read 15 Oct 2026 · docs.feat.so
SDK transport
The JavaScript SDK fetches a per-environment datafile, evaluates locally, uses Server-Sent Events by default, and falls back to polling.Read 15 Oct 2026 · github.com
SDKs
First-party SDKs are available for Node.js, Bun, Deno, Go, Python, Ruby, browser JavaScript, and Flutter/Dart.Read 1 Oct 2026 · docs.feat.so
Security controls
feat states that customer-facing endpoints use TLS 1.2 or newer, with HSTS and managed-service encryption at rest.Read 15 Oct 2026 · feat.so
Security infrastructure
The service runs application workloads on Cloudflare Workers, stores primary data in managed Postgres, and serves SDK datafiles through regional Durable Objects.Read 15 Oct 2026 · feat.so
Segments
Reusable named segments can be referenced by multiple flags.Read 15 Oct 2026 · docs.feat.so
Support levels
Free lists community support, while Starter, Growth, and Scale list email response targets of 48, 24, and 8 hours respectively.Read 15 Oct 2026 · feat.so
Targeting
Rules can target users, devices, organizations, sessions, and requests with AND and OR conditions.Read 15 Oct 2026 · feat.so

Plans and prices

Free Free free forever 7,500 MAU · 100 server connections · 2 projects · unlimited environments · unlimited flags · 30-day audit log · community support Read 15 Oct 2026 · feat.so
Starter $19 a month $15/mo billed annually 25,000 MAU · 250 server connections · segments · required change comments · webhooks coming Q3 2026 · CLI coming Q3 2026 · 90-day audit log · email support 48h Read 15 Oct 2026 · feat.so
Growth $49 a month $39/mo billed annually 100,000 MAU · 750 server connections · approvals · custom roles · A/B testing coming Q3 2026 · SSO enforcement coming Q3 2026 · Slack integration coming Q3 2026 · 1-year audit log · 99.9% SLA · email support 24h Read 15 Oct 2026 · feat.so
Scale $149 a month $119/mo billed annually 500,000 MAU · 2,500 server connections · gradual rollouts coming Q3 2026 · SAML coming Q3 2026 · IP allowlisting coming Q3 2026 · Terraform provider coming Q3 2026 · SOC 2 Type II coming Q3 2026 · 3-year audit log · email support 8h Read 15 Oct 2026 · feat.so
Elastic $299 a month $239/mo base billed annually 1M MAU included · $0.20 per 1,000 MAU above 1M · uncapped server connections · no grace period · same SLA and support as Scale Read 15 Oct 2026 · feat.so
Enterprise Priced on request custom contracts SCIM · private tenancy · data residency · dedicated CSM Read 15 Oct 2026 · feat.so

Every feat plan and price →

Strong points and limits

Strong points

  • Flag reads are evaluated locally by server SDKs.
  • Changes stream to connected SDKs in under a second.
  • Free includes unlimited environments and flags.
  • Supports multiple metric sources.

Limits

  • Free is limited to 7,500 MAU and 100 server connections.
  • Starter costs $19 a month.
  • Several experiment features and Slack integration are listed as coming in Q3 2026.

Who it suits

feat suits early engineering teams that need hosted feature flags, conditional targeting, and sticky percentage rollouts. Its SDK and OpenFeature options cover several listed languages and environments.

Verdict

feat offers local flag evaluation, flexible targeting, and sticky rollouts alongside SDKs for several languages. Check plan limits and distinguish listed upcoming features from those available now.

Where Specifiction places it

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