# だるーる vs WaterPulse

The clearest difference is in-app purchases: だるーる at none against WaterPulse's 1. だるーる also leads on update cadence (every 2 weeks vs every 6 weeks). WaterPulse's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. WaterPulse sells 1 one-off in-app purchase. だるーる asks for nothing beyond the download.

だるーる ships an update every 2 weeks, WaterPulse every 6 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | だるーる | WaterPulse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Size | 12 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryutaro Nakano](https://appshunter.io/developer/1883662154) | [Shanghai Runesmith Artificial Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1872991929) |

## What reviewers say

### だるーる

[App page](https://appshunter.io/ios/app/id6761538546)

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

**In-app purchases:** none


### WaterPulse

[App page](https://appshunter.io/ios/app/waterpulse-hydration-tracker/id6764545218)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $2.99 | one-time |


## Frequently asked questions

### Is だるーる free?

だるーる is free to download, with no in-app purchases.

### Is WaterPulse free?

WaterPulse is free to download, with in-app purchases available.

### Do だるーる or WaterPulse have ads?

Neither だるーる nor WaterPulse shows ads.

### Which is updated more often, だるーる or WaterPulse?

だるーる ships an update every 2 weeks, and WaterPulse every 6 weeks. Most recently, だるーる was updated on October 24, 2026 and WaterPulse on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*