For teams building AI into mobile apps
Ship AI features. Not your API keys.
One SDK and gateway for mobile apps. Keys stay on the server. Every request is verified, limited and costed.
Free to use during early access. Pricing will be announced before paid plans launch.
Kotlin MultiplatformSwiftFlutterReact Native
Device verified
Key stays on server
Quota OK
Routed → Anthropic
Cost logged $0.0004
The problem
AI in mobile apps leaks keys and money.
Free users can burn your margin.
daily AI spendexample
64%
of LLM-enabled iOS apps studied leaked credentials or backend access in their traffic. 282 of 444 apps. Wake Forest University, arXiv:2606.12212, June 2026, preprint.
Features
Everything between your app and the model.
Keys never ship
Provider keys live on the gateway. Rotate without a release.
Only your real app
Play Integrity and App Attest.
Limits by plan
From RevenueCat, StoreKit or Play.
Any provider
Switch models without an app update.
Cost per user
AI cost next to what each user pays.
One SDK, every stack
Native first. Cross-platform on the same core.
AndroidiOSKotlin MultiplatformFlutterReact Native
Demo
Send a request. Watch the gateway decide.
Simulation · demo prices
0allowed
0blocked
$0.000spent
Cost per user
Know who's profitable.
Free user
Revenue$0.00
AI cost$0.21
−$0.21/ mo
Pro subscriber
Revenue$4.99
AI cost$0.62
+$4.37/ mo
Power user
Revenue$4.99
AI cost$7.80
−$2.81/ mo
Access & pricing
Start building. We'll work out pricing with you.
We're keeping early access free while we learn how teams use Relaykit.
Free for now
Explore the gateway, test integrations and help shape the product. Paid plans may be introduced later; free early access is not a promise of permanent free use.
Join early accessPricing is being worked out.
We haven't finalized rates or usage allowances. We're evaluating transparent usage-based options, potentially with daily and monthly billing views.
No surprise pricing. We'll publish the actual rates and terms before asking anyone to move to a paid plan.
Model-provider usage is separate from Relaykit's eventual service pricing.
FAQ
Questions
Can I use it today?
We’re onboarding early-access teams in batches. Join the list to request an invitation.
How will pricing work?
Early access is free for now. Paid rates and allowances are not finalized; we’ll share the terms before introducing paid plans. Provider usage charges are separate.
Do you store prompts?
No. We keep usage metadata like user, tokens and cost. Prompts pass straight through.
Why not Firebase AI Logic?
It's Gemini-only. Relaykit adds OpenAI and Anthropic, plus limits tied to what users pay.
Which platforms?
Kotlin Multiplatform and Swift first, then Flutter and React Native.
Stop shipping keys.
Only early-access emails. Unsubscribe anytime.