TCT OTP vs U
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TCT OTP
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This app is used for tax transaction Generate password base on One-time Password algorithm Local Authentication to protect otp code Dark mode enable Example private key: JBSWY3DPEHPK3PXPJBSWY3DPEHPK3PXP
U
Engage in vibrant video calls and chats to foster meaningful connections. This platform helps you stay close to others, regardless of the distance, by offering innovative communication features.
- Vibrant video calls
- Engaging chats
- Meaningful connections
- Innovative features
- Community building
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Connect, Create, and Explore with Ucon! Dive into vibrant video calls, and engaging chats, and discover meaningful connections through our innovative features. Join the UCON community and stay close, no matter the distance!
Screenshots
Verdict
The clearest difference is update cadence: U at every 4 days against TCT OTP's every 3 weeks. TCT OTP's advantage is iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support 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.
TCT OTP ships an update every 3 weeks, U every 4 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.
| Parameter | TCT OTP | U |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 29 MB | 117 MB |
| Age rating | 4+ | 4+ |
| Developer | IT Department, General Department of Taxation of Viet Nam | Reda Kuehn |
In-app purchases
TCT OTP
No in-app purchases
U
No in-app purchases
