# Era vs WaterPaw

The clearest difference is update cadence: Era at every 2 weeks against WaterPaw's every 6 weeks. WaterPaw's advantage is iOS requirement (16.4 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Era sells 1 one-off in-app purchase and WaterPaw sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Era ships an update every 2 weeks, WaterPaw every 6 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | Era | WaterPaw |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Size | 6 MB | 81 MB |
| Requires iOS | 18.5 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Picard](https://appshunter.io/developer/1621115334) | [Vladislav Siumbeli](https://appshunter.io/developer/1830282251) |

## What reviewers say

### Era

[App page](https://appshunter.io/ios/app/era-practice-mindfulness/id6753314033)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Era Lifetime Access | $9.99 | one-time |


### WaterPaw

[App page](https://appshunter.io/ios/app/waterpaw-hydration-tracker/id6769810472)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Era free?

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

### Is WaterPaw free?

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

### Do Era or WaterPaw have ads?

Neither Era nor WaterPaw shows ads.

### Which is updated more often, Era or WaterPaw?

Era ships an update every 2 weeks, and WaterPaw every 6 weeks. Most recently, Era was updated on October 28, 2026 and WaterPaw on October 28, 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.*