# U Call Pay > Private phone number management and prepaid mobile service top-up. (iPhone/iPad app by 3 Billionaires Corp.) - Source: https://appshunter.io/ios/app/u-call-pay/id1492178675 (this page in markdown: same URL + `.md`) - Developer: [3 Billionaires Corp](https://appshunter.io/developer/1476105863) - Category: Utilities - Price: Free - Rating: 4.80/5 from 1,045 App Store ratings · 143 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 62 MB - Languages: American English - Released: 2020-05-16 - Data updated: 2026-09-06 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/u-call-pay/id1492178675/reviews.md ## What is U Call Pay? UCall Mobile offers a simple and secure solution for managing your phone number, making it easy to make and receive calls while keeping your primary number private. With UCall, you have a reliable, user-friendly app that lets you conveniently top up your prepaid phone service. UCall prioritizes security and smooth navigation, ensuring a seamless experience for managing and recharging your mobile needs. ## Key features - Private phone number management - Make and receive calls privately - Secure prepaid mobile top-up - User-friendly interface - Seamless navigation ## Recent user reviews (10 of 143) All indexed reviews: https://appshunter.io/ios/app/u-call-pay/id1492178675/reviews.md ### 5/5 — Good *2024-07-30, version 6.0.23* Good ### 5/5 — good *2024-07-24, version 6.0.23* good ### 5/5 — good *2024-07-13, version 6.0.23* good ### 5/5 — It is very convenient to use. *2024-06-30, version 6.0.21* It is very convenient to use. ### 5/5 — 赞👍 *2024-06-23, version 6.0.21* 流量多，还可以国际漫游，真好 ### 5/5 — Can use good *2024-06-20, version 6.0.21* Good ### 5/5 — good *2024-06-18, version 6.0.21* good ### 5/5 — good赞 *2024-06-18, version 6.0.21* 好用 ### 5/5 — good *2024-06-12, version 6.0.21* good ### 5/5 — good *2024-06-12, version 6.0.21* good ## Frequently asked questions about U Call Pay ### What does U Call Pay do? U Call Pay allows you to manage a separate phone number for making and receiving calls, keeping your primary number private. It also provides a convenient and secure way to top up your prepaid mobile service. ### How does it keep my primary number private? The app provides you with a distinct phone number that you can use for calls. When you make or receive calls through the app, your primary number is not revealed to the other party. ### Is there a cost to use U Call Pay? Based on the provided information, the app is free to use. There are no explicit mentions of subscription fees or upfront purchase costs. ### Can I top up any prepaid mobile service? The app is designed to facilitate topping up your prepaid phone service. While the description doesn't specify exact carrier compatibility, it aims to be a convenient solution for managing mobile needs. ### What are the main benefits of using this app? The primary benefits include enhanced privacy by using a secondary number for calls and a secure, user-friendly method for recharging your prepaid mobile service, ensuring a smooth experience. ## Version history (last 5 releases) ### 8.0.6 — 2026-08-21 new bugs fixed. ### 8.0.5 — 2026-08-17 1. Added iOS-style Add Call, Call Waiting, Call Swap, and three-way conference calling. 2. Improved connection speed for secondary incoming and outgoing calls. 3. Fixed audio loss, unexpected disconnections, and incorrect call states when switching between calls. 4. Improved CallKit and PushKit synchronization to prevent duplicate incoming call screens and lingering call states. 5. Improved conference merging, allowing users to speak privately before merging calls. 6. Fixed call timer resets and inaccurate duration tracking during locked-screen and conference calls. 7. Fixed voicemail playback issues and improved voicemail routing reliability. 8. Improved SIP registration, network recovery, and background incoming-call reliability. 9. Improved microphone and audio routing across the receiver, speaker, and Bluetooth devices. 10. Reduced unnecessary logs and improved overall call performance and stability. 11. Improved automatic VoIP push token updates for more reliable calls after installation or app updates. 12. Fixed missing call history and duration for calls answered from the lock screen. 13. Improved background call settlement to ensure minute usage is updated correctly. 14. Improved overall reliability for background and lock-screen calls. ### 8.0.0 — 2026-06-04 1. Add voice mail 2. new bugs fixed. ### 7.0.13 — 2026-04-07 new bugs fixed. ### 7.0.12 — 2026-03-25 new bugs fixed. ## Apps similar to U Call Pay | App | Rating | Price | Category | | --- | --- | --- | --- | | [Omni Relprev](https://appshunter.io/ios/app/omni-relprev/id1434690340) | — | Free | Utilities | | [佐敦](https://appshunter.io/ios/app/id1448255140) | — | Free | Utilities | | [HeatNext](https://appshunter.io/ios/app/heatnext/id1440372440) | — | Free | Utilities | | [GHIA KIDS](https://appshunter.io/ios/app/ghia-kids/id1434789680) | — | Free | Utilities | | [益电宝-数据改变未来](https://appshunter.io/ios/app/id1434796500) | — | Free | Utilities | | [MISD Tip](https://appshunter.io/ios/app/misd-tip/id1440174120) | — | Free | Utilities | ## More apps by 3 Billionaires Corp - [U Call Dealer](https://appshunter.io/ios/app/u-call-dealer/id1610785978) - [Vanity Mobile Numbers](https://appshunter.io/ios/app/vanity-mobile-numbers/id6785269605) All apps by 3 Billionaires Corp: https://appshunter.io/developer/1476105863 ## Related topics [ucall](https://appshunter.io/ios/topics/ucall) · [telkea ucall](https://appshunter.io/ios/topics/telkea-ucall) · [call steward mobile](https://appshunter.io/ios/topics/call-steward-mobile) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*