U vs HOYHON
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U
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U-TEST APP (Has been approved by the Taiwan Ministry of Health and Welfare.) (https://tinyurl.com/ywvdwh2k) ‧ Use with U-TEST APP to take pictures and save records easier. ‧ Store daily picture in your smartphone for a long-term tracking of the crystal pattern changes. ‧ Every woman has her own ovulation curves. ‧ It can help you to monitor the change of your menstrual cycle by sharing the ovulation information.
HOYHON
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Download the HOYHON CIRCUS App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!
Screenshots
Verdict
The clearest difference is update cadence: U at every 5 weeks against HOYHON's every 8 months. U also leads on device support and iOS requirement (9.0 vs 14.0). On price and in-app purchases 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.
U ships an update every 5 weeks, HOYHON every 8 months. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.
| Parameter | U | HOYHON |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 8 months |
| Ads | No | — |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 293 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | SMARTCHIP MICROELECTRONICS CORP. | HOYHON COMPANY LIMITED |
In-app purchases
U
No in-app purchases
HOYHON
No in-app purchases
