U Call Pay vs Fly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U Call Pay
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.
- Private phone number management
- Make and receive calls privately
- Secure prepaid mobile top-up
- User-friendly interface
- Seamless navigation
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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.
Fly
Enhance your electric bike experience with intelligent features. This app offers a new way to enjoy colorful riding life through its connected functionalities.
- Intelligent riding experience
- Connected functionalities
- New riding lifestyle
- Full range of features
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Fly-eBike App, to bring you a full range of intelligent experience, create a brand new colorful riding life
Screenshots
Verdict
The clearest difference is review sentiment: U Call Pay at 98% against Fly's 0%. U Call Pay also leads on ratings volume (1K vs 5) and update cadence (every 3 weeks vs every 3 months). Fly's advantage is rating (5.0 vs 4.8) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fly holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: U Call Pay has 1K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 98% of U Call Pay's written reviews are positive against 0% of Fly's, so the app with the better star average is not the one people write more warmly about.
U Call Pay ships an update every 3 weeks, Fly every 3 months. The most recent releases landed on September 9, 2026 and August 29, 2026 respectively.
| Parameter | U Call Pay | Fly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1K ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 97.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 1K — better | 5 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | 3 Billionaires Corp | Flyebike Inc |
Customer experience
U Call Pay
Fly
In-app purchases
U Call Pay
No in-app purchases
Fly
No in-app purchases
