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Flagsmith vs Unleash

SEPT 2026 audit

A comparison of Flagsmith and Unleash built from values read directly from each provider's own documentation, with the source recorded against every figure.

Updated 11 criteria comparedSources last checked

The short answer

Choose Flagsmith if…

Self-hosting, or a small team with modest traffic. It is open source with a documented self-hosted path, and Start-up is $40 a month billed yearly — the cheapest paid entry of the four. Identities and segments are unlimited, so your audience is never the thing that costs.

Editorial · Palash Bagchi · approved

Choose Unleash if…

A small team serving a large audience, and wanting the option to run it yourself. Client-side MAU and service connections are unlimited on every plan, so neither traffic nor audience moves the price — only headcount does, at $75 a seat.

Editorial · Palash Bagchi · approved

Consider something else if…

  • Flagsmith: Your application reads flags often. API requests are the meter, so every evaluation is on the bill at $50 per million above the allowance — and the free plan's 50,000 requests a month is roughly one user refreshing a page a few thousand times. Seats are capped too: one on free, three at $40.
  • Unleash: The team is bigger than the audience, or you want to try before paying. There is no free plan at all, only a 14-day trial, so three people start at $225 a month before a single flag is read. API traffic is still capped at 53 million requests, then $5 per million.

5 sourced criteria separate them — see where, with sources, below.

No affiliate links, sponsored placements or paid rankings appear on this site. Ordering follows the sourced data and the stated criteria.

01.

At a glance.

CriterionFlagsmithUnleash
Pricing
Free tier
Yes
No
Kind of free offerFree tierFree trial
Entry paid plan
$40 a month for Start-up paid yearly, or $45 monthly. That raises the allowance to 1,000,000 requests and three team members.
$75 per seat per month on pay-as-you-go. With no free plan behind it, a three-person team starts at $225 a month.
Pricing modelAPI requests. Every call your application makes to read flags counts, so the bill tracks traffic rather than team or audience — $50 per million above the plan's allowance, decreasing with volume. Seats are capped per plan on top: one on Free, three on Start-up.Per seat, $75 a month each — the opposite axis to every other member here. Client-side MAU and service connections are unlimited on every plan, so audience size and traffic cost nothing; the bill is a function of how many people touch the tool.
Observability
Self-hostableSupportedSupported
Auth
Users includedUnlimited identities and segments under a fair usage policy. Flagsmith does not meter your audience at all — only the API requests your application makes to read flags.Unlimited client-side monthly active users on every plan, alongside unlimited service connections. The audience is free; the seats are not.

Only criteria both providers publish appear here; a tinted cell marks a real difference. Criteria only one of them documents are listed below, and an absence there means we found no source — not that the feature is missing. How we source this.

The small bar above a value is inetGeek's own lean toward that side — computed from the same facts shown, never a number the provider published. See the picker below "The short answer" to weigh only the criteria you care about.

02.

Where they differ.

Free tier

Flagsmith
Yes
Unleash
No
Sources (2) →
  • Flagsmith Pricing ↗

    “free feature flags for building on your own $ 0 get started! free plan includes: up to 50,000 requests per month*”

    Read 2026-09-16 · official pricing

  • Unleash Pricing ↗

    “we host unleash enterprise for you. 14-day trial, no credit card required host your own 14-day enterprise trial”

    Read 2026-09-16 · official pricing

Kind of free offer

Flagsmith
Free tier
Unleash
Free trial
Sources (2) →
  • Flagsmith Pricing ↗

    “free feature flags for building on your own $ 0 get started!”

    Read 2026-09-16 · official pricing

  • Unleash Pricing ↗

    “14-day trial, no credit card required host your own 14-day enterprise trial”

    Read 2026-09-16 · official pricing

Entry paid plan

Flagsmith
$40 a month for Start-up paid yearly, or $45 monthly. That raises the allowance to 1,000,000 requests and three team members.
Unleash
$75 per seat per month on pay-as-you-go. With no free plan behind it, a three-person team starts at $225 a month.
Sources (2) →
  • Flagsmith Pricing ↗

    “start-up $ 40 /mo 14 day free trial start-up feature flags for small teams $ 45 /mo 14 day free trial everything in free, plus: up to 1,000,000 requests per month*”

    Read 2026-09-16 · official pricing

  • Unleash Pricing ↗

    “75$ /seat/month custom enterprise guided onboarding & annual contract”

    Read 2026-09-16 · official pricing

Pricing model

Flagsmith
API requests. Every call your application makes to read flags counts, so the bill tracks traffic rather than team or audience — $50 per million above the plan's allowance, decreasing with volume. Seats are capped per plan on top: one on Free, three on Start-up.
Unleash
Per seat, $75 a month each — the opposite axis to every other member here. Client-side MAU and service connections are unlimited on every plan, so audience size and traffic cost nothing; the bill is a function of how many people touch the tool.
Sources (2) →
  • Flagsmith Pricing ↗

    “up to 50,000 requests per month* additional api calls start at $50 per million per month and decrease with volume 1 team member unlimited feature flags”

    Read 2026-09-16 · official pricing

  • Unleash Pricing ↗

    “75$ /seat/month custom enterprise guided onboarding & annual contract cloud, self-hosted or hybrid. contact sales let's talk scale, support & slas client side mau unlimited unlimited service connections unlimited unlimited”

    Read 2026-09-16 · official pricing

Users included

Flagsmith
Unlimited identities and segments under a fair usage policy. Flagsmith does not meter your audience at all — only the API requests your application makes to read flags.
Unleash
Unlimited client-side monthly active users on every plan, alongside unlimited service connections. The audience is free; the seats are not.
Sources (2) →
  • Flagsmith Pricing ↗

    “1 team member unlimited feature flags fair usage policy applies unlimited environments unlimited identities and segments fair usage policy applies”

    Read 2026-09-16 · official pricing

  • Unleash Pricing ↗

    “client side mau unlimited unlimited service connections unlimited unlimited”

    Read 2026-09-16 · official pricing

When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.

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03.

Documented by only one.

These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing.

What the free plan includesFlagsmith: 50,000 API requests a month and ONE team member, with unlimited flags, environments and segments under a fair usage policy.
Credit card to startUnleash: No
When the free offer endsFlagsmith: The paid plans carry a 14-day free trial; the $0 plan itself does not expire.
Retention windowUnleash: 90 days of feature flag metrics on both published plans.
Rate limitsUnleash: 53 million API requests a month on the cloud plan, then $5 per million — a ceiling the per-seat price does not remove.
04.

Questions this comparison answers.

Entry paid plan: Flagsmith or Unleash?

Flagsmith: $40 a month for Start-up paid yearly, or $45 monthly. That raises the allowance to 1,000,000 requests and three team members.

Unleash: $75 per seat per month on pay-as-you-go. With no free plan behind it, a three-person team starts at $225 a month.

Free tier: Flagsmith or Unleash?

Flagsmith: Yes

Unleash: No

Should I choose Flagsmith or Unleash?

Pick Flagsmith if Self-hosting, or a small team with modest traffic. It is open source with a documented self-hosted path, and Start-up is $40 a month billed yearly — the cheapest paid entry of the four. Identities and segments are unlimited, so your audience is never the thing that costs.

Pick Unleash if A small team serving a large audience, and wanting the option to run it yourself. Client-side MAU and service connections are unlimited on every plan, so neither traffic nor audience moves the price — only headcount does, at $75 a seat.

Provider pages

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Every page here is sourced and dated.