# BlueTem vs Water Tracker：Drink Reminder

The clearest difference is in-app purchases: BlueTem at none against Water Tracker：Drink Reminder's 7. BlueTem also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (16.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Water Tracker：Drink Reminder sells 3 in-app purchases, starting at $9.99 per 7 days. BlueTem asks for nothing beyond the download.

BlueTem ships an update every 3 days, Water Tracker：Drink Reminder every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BlueTem | Water Tracker：Drink Reminder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 66 MB | 229 MB |
| Requires iOS | **16.1** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BlueTem Software GmbH](https://appshunter.io/developer/972664686) | [Shenzhen AiPuLeSi Technology Co.,Ltd](https://appshunter.io/developer/1805512838) |

## What reviewers say

### BlueTem

[App page](https://appshunter.io/ios/app/bluetem-chat/id6746445619)

**Features:** macOS Compatibility

**In-app purchases:** none


### Water Tracker：Drink Reminder

[App page](https://appshunter.io/ios/app/water-trackerdrink-reminder/id6757998652)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $9.99 | per 7 days |
| Premium Weekly | $9.99 | per 7 days |
| Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is BlueTem free?

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

### Is Water Tracker：Drink Reminder free?

Water Tracker：Drink Reminder is free to download, with in-app purchases available.

### Do BlueTem or Water Tracker：Drink Reminder have ads?

Neither BlueTem nor Water Tracker：Drink Reminder shows ads.

### Which is updated more often, BlueTem or Water Tracker：Drink Reminder?

BlueTem ships an update every 3 days, and Water Tracker：Drink Reminder every 3 weeks. Most recently, BlueTem was updated on October 25, 2026 and Water Tracker：Drink Reminder on October 31, 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.*