# U Call Pay vs fly delivery

The clearest difference is update cadence: U Call Pay at every 3 weeks against fly delivery's every 3 months. fly delivery's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

U Call Pay ships an update every 3 weeks, fly delivery every 3 months. Both last shipped on September 9, 2026.

## The numbers

| Metric | U Call Pay | fly delivery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1K ratings)](https://appshunter.io/ios/app/u-call-pay/id1492178675/reviews)** | — |
| Number of ratings | **1K** | — |
| Positive reviews | 97.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 62 MB | 21 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [3 Billionaires Corp](https://appshunter.io/developer/1476105863) | [Flyebike Inc](https://appshunter.io/developer/1619123234) |

## What reviewers say

### U Call Pay

[App page](https://appshunter.io/ios/app/u-call-pay/id1492178675)

Manage your phone number privately and make/receive calls without revealing your primary number. This app also offers a secure and user-friendly way to top up your prepaid mobile service.

**Highlights:** Private phone number management, Make and receive calls privately, Secure prepaid mobile top-up, User-friendly interface, Seamless navigation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### fly delivery

[App page](https://appshunter.io/ios/app/fly-delivery/id6451400775)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is U Call Pay free?

U Call Pay is free to download, with no in-app purchases.

### Is fly delivery free?

fly delivery is free to download, with no in-app purchases.

### Do U Call Pay or fly delivery have ads?

Neither U Call Pay nor fly delivery shows ads.

### Which is updated more often, U Call Pay or fly delivery?

U Call Pay ships an update every 3 weeks, and fly delivery every 3 months. Most recently, U Call Pay was updated on September 9, 2026 and fly delivery on September 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*