Rent a second US number
Choose an available US number in the app. Number plans renew monthly until cancelled.
TwinPhone for iPhone
A second phone number and international calls on iOS
Use TwinPhone over Wi-Fi or mobile data, without adding a second SIM. Rent a US number, call abroad and manage prepaid credit from one app.
Free to download · Requires iOS 17.0 or later
What you can do in the app
The iOS app brings TwinPhone's core calling and second-number tools to iPhone.
Call internationally
Place internet calls to supported destinations using Wi-Fi or mobile data.
Pay as you go
Add prepaid credit when needed. Calling charges are deducted from your balance.
No second SIM required
Your rented number and calling balance live in TwinPhone, not on another SIM card.
See TwinPhone on iPhone
These are the current screenshots published with TwinPhone on the App Store. The app interface is in English; pictured prices, inventory and features may change, so confirm current details in the app before purchase.
Pricing and subscriptions
The app is free to install. Calls, credit top-ups and rented numbers are priced separately.
Free app download
The TwinPhone iOS app costs $0 to download from the App Store.
Prepaid calling credit
Top-ups are one-time in-app purchases. Per-minute rates vary by destination and are shown before calling.
Monthly number plans
Rented numbers use auto-renewing monthly subscriptions. Apple shows the price and renewal terms before confirmation.
Support, privacy and terms
Need help with the app or a purchase? Visit support. Privacy and subscription terms are available before you install.
Take TwinPhone with you
Download the iPhone app and use your TwinPhone account on iOS.
Get TwinPhone for iPhone