SignaKit vs Unleash
Unleash is a strong open-source option for enterprise teams that need governance, compliance, and self-hosting. SignaKit is built for engineering teams that want feature flags, A/B testing, and built-in analytics in a single managed platform — without the pricing model that punishes team growth.
Last updated May 2026. Pricing and feature data verified from public sources.
Quick verdict
| SignaKit | Unleash | |
|---|---|---|
| Best for | Engineering teams: flags + experimentation + analytics, all managed | Enterprise teams: governance, compliance, and self-hosting |
| Pricing model | Event-based flat rate (flag evaluations free) | Per seat ($75/seat/mo) |
| Free tier | ✓1M events/mo, 5 members — permanent | 14-day trial only |
| 5-person team cost | $39/mo (Starter) | $375/mo |
| Built-in analytics | ✓ | Requires Grafana / Datadog |
| A/B testing stats engine | ✓Built-in | Needs external tooling |
| Multi-armed bandit | ✓All plans | ✕ |
| Slack notifications | ✓Starter+ | Not standard |
| Self-hosting | Managed cloud only | ✓Open source + managed |
| SDK count | 11 | 25+ |
Feature comparison
Core feature flags
| SignaKit | Unleash | |
|---|---|---|
| Boolean flags | ✓ | ✓ |
| Multivariate flags | ✓ | ✓ |
| User/segment targeting | ✓ | ✓ |
| Percentage rollouts | ✓ | ✓ |
| Kill switches | ✓ | ✓ |
| Dark launches | ✓ | ✓ |
| Flag lifecycle management | ✓ | ✓ |
| Flag audit log | ✓ | ✓Up to 2-year retention |
| Change request workflows | — | ✓Enterprise |
| Four-eyes approval | — | ✓Enterprise |
| Flag scheduling | Planned | ✓ |
| Unlimited flags / environments | ✓ | ✓ |
Experimentation & analytics
| SignaKit | Unleash | |
|---|---|---|
| A/B testing | ✓All plans | Variant flags only, no built-in stats |
| Multivariate testing | ✓ | Via variants, no stats engine |
| Multi-armed bandit | ✓All plans | ✕ |
| Statistical significance (z-test) | ✓ | External tooling required |
| Confidence intervals | ✓ | ✕ |
| Experiment snapshots | ✓ | ✕ |
| Built-in event collection | ✓ | ✕ |
| Slack experiment alerts | ✓Starter+ | ✕ |
| Analytics integrations | — | ✓Grafana, Prometheus, Datadog |
Developer experience
| SignaKit | Unleash | |
|---|---|---|
| Node.js SDK | ✓ | ✓ |
| React / React Native SDK | ✓ | ✓ |
| Next.js SDK | ✓ | ✓ |
| PHP / Laravel SDK | ✓ | ✓PHP (no Laravel) |
| Python SDK | ✓ | ✓ |
| Go SDK | ✓ | ✓ |
| Ruby SDK | ✓ | ✓ |
| .NET SDK | ✓ | ✓ |
| Rust SDK | — | ✓ |
| iOS / Android / Flutter SDK | — | ✓ |
| Vue / Svelte SDK | — | ✓ |
| Total native SDKs | 11 | 25+ |
| Local flag evaluation (no network call) | ✓ | ✓ |
| Unleash Edge (CDN proxy) | — | ✓ |
| REST API | ✓ | ✓ |
Infrastructure & security
| SignaKit | Unleash | |
|---|---|---|
| Managed cloud | ✓ | ✓ |
| Self-hosted / open source | — | ✓ |
| Role-based access control | ✓ | ✓ |
| SSO / SAML / OIDC | Planned | ✓All paid tiers |
| SCIM provisioning | — | ✓Enterprise |
| Change request workflows | — | ✓Enterprise |
| Audit log retention | Basic | ✓Up to 2 years |
| SOC 2 Type II | Roadmap | ✓ |
| GDPR | ✓ | ✓ |
| EU data residency | — | ✓ |
| Uptime SLA | — | 99.9% (PAYG) / 99.99% (Enterprise) |
| Slack + email notifications | ✓Starter+ | Not standard |
⚠ = restricted to a higher tier or requires additional tooling · — = not yet available
Pricing comparison
Unleash
As of May 2026
| Plan | Price | Notes |
|---|---|---|
| Open Source | Free | Self-hosted, unlimited |
| Free Trial | Free (14 days) | Cloud, no card required |
| Pay-As-You-Go | $75/seat/mo | 53M API req/mo included |
| Enterprise | Custom | Min. 5 seats, 99.99% SLA |
No free tier after trial: At $75/seat/mo, a 5-person team pays $4,500/year. A 10-person team pays $9,000/year. Metrics retention is limited to 90 days on Pay-As-You-Go.
SignaKit
As of May 2026
| Plan | Monthly | Events/mo | Members |
|---|---|---|---|
| Free | $0 | 1M | 5 |
| Starter | $39 | 5M | 15 |
| Growth | $119 | 25M | 30 |
| Enterprise | Contact | Unlimited | Unlimited |
Flag evaluations are always free. They run locally in the SDK — no network call, no billing. Only exposure events (once per user per flag per session) and custom metric events count. Overage is $3 per 1M events.
Where each platform wins
Unleash wins
Enterprise governance
Change request workflows, four-eyes approval, SCIM provisioning, SAML/OIDC SSO, and up to two years of audit log retention make Unleash the strongest choice for regulated industries and large engineering organizations.
Self-hosting and data residency
Unleash is fully open source. Teams with data residency requirements, private cloud mandates, or compliance obligations (FedRAMP, ISO 27001) can run it entirely on their own infrastructure.
SDK breadth and mobile support
25+ native SDKs including iOS, Android, Flutter, Rust, Vue, and Svelte. If your stack includes mobile apps or languages outside SignaKit's current 11, Unleash has you covered.
SOC 2 Type II and compliance posture
Unleash holds SOC 2 Type II certification today. For organizations in finance, healthcare, or government with hard audit requirements, this is a meaningful advantage.
SignaKit wins
Permanent free tier
SignaKit's free plan is permanent — 1M events/month and 5 members, no expiry. Unleash has no free cloud tier after the 14-day trial. Even a 2-person team pays $150/month on Unleash cloud.
Built-in experimentation and analytics
Unleash delivers flags. To actually measure which variant won, you need Grafana, Datadog, or a custom analytics pipeline. SignaKit includes a native stats engine — z-tests, confidence intervals, experiment snapshots, and multi-armed bandit — without stitching tools together.
Pricing that scales with usage, not headcount
Unleash's $75/seat/month model means a 10-person team pays $9,000/year. SignaKit's event-based pricing means the same team on Starter pays $468/year — no bill spike when you hire.
Slack alerts out of the box
SignaKit sends Slack notifications when experiments reach statistical significance and when flags change. Unleash does not include Slack alerting as a standard feature on any tier.
Who should choose which
Choose Unleash if…
- You need SOC 2 Type II, FedRAMP, or ISO 27001 compliance today
- You need self-hosting or private cloud for data residency or regulatory reasons
- Your team requires change request workflows and four-eyes approval before flag changes go live
- You need SDK coverage for iOS, Android, Flutter, Rust, or Vue
- Your organization has a mature DevOps function that can manage self-hosted infrastructure
Choose SignaKit if…
- You want feature flags, A/B testing, multi-armed bandit, and analytics in a single managed platform — no external tooling required
- You're a startup or growing team that needs a permanent free tier and pricing that doesn't compound as you hire
- You want Slack experiment alerts and flag notifications without enterprise contracts
- You're building on Node, React, Next.js, PHP, Python, Go, Ruby, or Laravel
- You want to start running experiments the same day you sign up — no infra, no DevOps ticket
Switching from Unleash to SignaKit
Both platforms use local SDK evaluation. You can run them in parallel and transition flag by flag without downtime.
Install the SignaKit SDK alongside Unleash
Both SDKs can run simultaneously. No forced cutover or downtime required.
Instrument SignaKit events for your key metrics
Add track() calls for the conversion events you care about. If you were routing Unleash impression data to Grafana or Datadog, this replaces that pipeline with a single SDK call.
Recreate flags in SignaKit and migrate environment by environment
Move dev → staging → production at your own pace. Each environment uses its own SDK key.
Remove the Unleash SDK
Once all flags are live in SignaKit, remove the old SDK and clean up your external analytics integrations. Most teams complete a full migration in 1–3 weeks.
Frequently asked questions
Does Unleash have a free tier?
Unleash does not have an ongoing free tier. The cloud offering starts with a 14-day free trial, after which you must pay $75/seat/month. The open-source self-hosted version is free to use but requires your own infrastructure, Docker deployment, and ongoing maintenance. SignaKit's free cloud tier is permanent — 1M events/month and 5 members with no expiry.
How does SignaKit pricing compare to Unleash?
Unleash's Pay-As-You-Go plan is $75/seat/month. A 5-person team pays $375/month ($4,500/year). SignaKit's Starter plan is $39/month regardless of team size — the same 5-person team pays $468/year. At 10 seats, Unleash costs $9,000/year vs. $468–$1,428/year on SignaKit.
Does Unleash include A/B testing?
Unleash supports feature flag variants — you can serve different flag values to different user segments. However, it does not include a statistical analysis engine. To determine which variant won, you need to pipe data into an external tool like Grafana, Datadog, or a custom analytics solution. SignaKit includes a built-in stats engine with z-tests, confidence intervals, and experiment snapshots.
Does SignaKit have multi-armed bandit?
Yes — SignaKit includes multi-armed bandit traffic optimization on all plans, including the free tier. It uses Thompson Sampling to automatically shift traffic toward the winning variant as experiment data accumulates. Unleash does not offer multi-armed bandit at any pricing tier.
Can I self-host SignaKit like Unleash?
SignaKit is a managed cloud service — self-hosting is not currently available. If self-hosting or data residency is a hard requirement, Unleash open source, GrowthBook, PostHog, or Flagsmith are better fits.
What compliance certifications does each platform have?
Unleash holds SOC 2 Type II and GDPR compliance, with paths to FedRAMP and ISO 27001 — making it well-suited for regulated industries. SignaKit is GDPR-compliant with SOC 2 on the roadmap. For compliance-heavy environments (finance, healthcare, government), Unleash's current certifications are a genuine advantage.
Is Unleash suitable for small engineering teams?
Unleash's managed cloud pricing ($75/seat/month) is expensive for small teams — a 3-person team pays $225/month with no free tier. The self-hosted open-source version is free but adds infrastructure overhead that small teams typically want to avoid. SignaKit's permanent free tier and $39/month Starter plan are designed for teams at this stage.
Start free. No credit card required.
Free forever on the first million events. A/B testing and multi-armed bandit included on all plans. No infrastructure to manage.