# 用药提醒 vs HydroTimer

The clearest difference is update cadence: 用药提醒 at every 5 days against HydroTimer's every 10 months. 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.

用药提醒 ships an update every 5 days, HydroTimer every 10 months. The most recent releases landed on September 5, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | 用药提醒 | HydroTimer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 months |
| Size | 31 MB | 2 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [超 马](https://appshunter.io/developer/1650081295) | [Aurelis Limited](https://appshunter.io/developer/1821243565) |

## What reviewers say

### 用药提醒

[App page](https://appshunter.io/ios/app/id6446398844)

**Features:** macOS Compatibility

**In-app purchases:** none


### HydroTimer

[App page](https://appshunter.io/ios/app/hydrotimer/id6748376181)

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

**In-app purchases:** none


## Frequently asked questions

### Is 用药提醒 free?

用药提醒 is free to download, with no in-app purchases.

### Is HydroTimer free?

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

### Do 用药提醒 or HydroTimer have ads?

Neither 用药提醒 nor HydroTimer shows ads.

### Which is updated more often, 用药提醒 or HydroTimer?

用药提醒 ships an update every 5 days, and HydroTimer every 10 months. Most recently, 用药提醒 was updated on September 5, 2026 and HydroTimer on August 20, 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.*