Payment and Billing Integration
Payment and Billing Integration
Adapty.io–One-stop solution with open-source SDK for mobile in-app subscriptions integration to iOS, Android, React Native, Flutter, Unity, or web app. Free up to $10k monthly revenue.
CurrencyFreaks—Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.
CurrencyApi—Live Currency Rates for Physical and Crypto currencies, delivered in JSON and XML. Free tier offers 1,250 API requests/month.
currencylayer—Reliable Exchange Rates and Currency Conversion for your Business, 1,000 API requests/month free
currencystack.io—Production-ready real-time exchange rates for 154 currencies.
exchangerate-api.com - An easy to use currency conversion JSON API. Free tier with no request limit.
FraudLabsPRO—Help merchants to prevent payment fraud and chargebacks. Free Micro Plan available with 500 queries/month.
MailPopin - Get the most of your Stripe notifications with contextualized information.
Nami ML - Complete platform for in-app purchases and subscriptions on iOS and Android, including no-code paywalls, CRM, and analytics. Free for all base features to run an IAP business.
RevenueCat—Hosted backend for in-app purchases and subscriptions (iOS and Android). Free up to $10k/mo in tracked revenue.
vatlayer—Instant VAT number validation and EU VAT rates API, free 100 API requests/month
Freecurrencyapi.net—Free currency conversion and exchange rate data API. 10 requests/hour without an API key, 50 000 requests per month when you register for free.
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