HoldLink vs hydrogen cup
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HoldLink
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Using our smart devices and the accompanying HoldLink app, you can: 1. Use all app features without registration or login; your saved data will be automatically deleted when you leave. 2. The app automatically syncs with your phone's system time and language. 3. Set your device's time system and alarms. 4. Mirror camera data from your phone to your device.
hydrogen cup
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This application can control the water bottle produced by Shenzhen Second Technology Co., Ltd.
Screenshots
Verdict
The clearest difference is update cadence: HoldLink at every 2 weeks against hydrogen cup's every 2 months. hydrogen cup's advantage is iOS requirement (13.0 vs 15.6). 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.
HoldLink ships an update every 2 weeks, hydrogen cup every 2 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | HoldLink | hydrogen cup |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 129 MB | 30 MB |
| Age rating | 9+ | 4+ |
| Developer | Shenzhen Weir Health Technology Co., Ltd | Shenzhen ZhiBaoyuan Electronic Technology Co., Ltd. |
In-app purchases
HoldLink
No in-app purchases
hydrogen cup
No in-app purchases
