Convex currency
Daily rates, alerts & widget
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Currency conversion done right — accurate, beautiful, and completely ad-free.
Convex Currency is a refreshingly simple currency converter built for people who want trustworthy rates without the clutter, ads, or tracking that fill other finance apps. Powered by official reference rates from the European Central Bank (ECB), Convex Currency gives you dependable conversions across 30+ major world currencies — wrapped in a clean, elegant interface that's a pleasure to use every day.
WHY YOU'LL LOVE CONVEX CURRENCY
Trusted rates, 30+ currencies
Convert between all the major world currencies using official daily reference rates published by the European Central Bank. You'll always see exactly when rates were last updated — no guesswork.
Built around your money
Set your home currency once, then pin the currencies you use most for instant, at-a-glance conversions tailored to you.
Smart travel suggestions
Heading abroad? With your permission, Convex Currency can suggest the local currency automatically based on where you are — so you're ready the moment you land.
Rate alerts
Watching for the right moment? Set a target value and Convex Currency will notify you when a currency reaches it. Never miss a favorable rate again.
Home Screen widget
Keep your favorite currency pair right on your Home Screen and see the latest rate at a glance — no need to open the app.
Private by design — no ads, ever
We don't serve ads and we don't track you. Your usage stays yours. Convex Currency is supported entirely by subscriptions, which means our only job is to build a great app for you.
A SUBSCRIPTION APP — START WITH A FREE TRIAL
Convex Currency is available as a subscription. Start with a free trial, then keep full access with a monthly or yearly plan — whichever suits you. You can switch plans or cancel anytime, right from the app. Pricing is shown in the app in your local currency and varies by region.
Download Convex Currency today and experience currency conversion the way it should be — accurate, elegant, and respectful of your privacy.
SUBSCRIPTION DETAILS:
Convex Currency offers an auto-renewing subscription with a free trial, available on a monthly or yearly basis.
Your free trial automatically converts to a paid subscription unless cancelled at least 24 hours before the trial ends.
Payment is charged to your Apple Account at confirmation of purchase.
Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Terms of Use: https://www.iubenda.com/terms-and-conditions/42431072
Privacy Policy: https://www.iubenda.com/privacy-policy/42431072
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Changed the input value interaction to be live and do not need the user to 'enter' each time. Also, fixed some bugs.
The developer, Karan Ramesh Mewada, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Karan Ramesh Mewada
- Size
- 6.5 MB
- Category
- Finance
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Convex currency Pro $1.99
- Convex currency Pro $19.99
- Convex yearly $19.99
- Convex monthly $1.99
- Copyright
- © 2026 Karan Ramesh Mewada