An Amplitude alternative sized for an indie app.

Amplitude is built for product teams with experiments, cohorts and guides. Union is built for one or a few people shipping an iOS subscription app, who want the answers without configuring them.

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Union and Amplitude, side by side.

	Union	Amplitude
Free tier	100,000 events a month	2M events and 10k session replays a month
Session replay on iOS	No: No session replay	Yes: Included, iOS Session Replay plugin
Subscription revenue	Yes: RevenueCat or App Store Server Notifications	Partly: Through RevenueCat’s Amplitude integration
EU data center	Cloudflare	Yes: On every plan
App Store Connect data	Yes: Store funnel, proceeds, reviews, keyword positions	Not found in their docs

Amplitude facts read on their own website on Oct 23, 2026. Rows we could not check there are left out rather than guessed.

Why teams pick Union over Amplitude.

Ready on day one
Live, sessions, features, releases, crashes and revenue without building a chart.
The App Store in the same panel
Store funnel per market, keyword positions, reviews and rivals next to in-app usage.
Predictable price
Four plans by monthly events, from free to €79.

When Amplitude is the better choice.

You run experiments and want analytics and A/B testing in one tool.
You need behavioural cohorts, guides or surveys.
You need 2 million free events or enterprise scale.

Questions about switching from Amplitude.

Does Union do experiments?

No. Union has no feature flags or A/B tests; it measures releases with a before/after comparison instead.

Other comparisons.

See who is using your app right now. Your first 100,000 events a month are free.

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