# HydroTally vs Pawtern

The clearest difference is ads: Pawtern at none against HydroTally's shown. Pawtern also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. HydroTally sells 1 one-off in-app purchase and Pawtern sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HydroTally ships an update every 5 months, Pawtern every 2 weeks. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HydroTally | Pawtern |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 26 MB | 6 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ihar Pronka](https://appshunter.io/developer/1887236364) | [Yeonni Lee](https://appshunter.io/developer/1710530643) |

## What reviewers say

### HydroTally

[App page](https://appshunter.io/ios/app/hydrotally-water-tracker/id6762005743)

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

**In-app purchases (1)**

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


### Pawtern

[App page](https://appshunter.io/ios/app/pawtern-sewing-patterns/id6773942297)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pawtern Pro | $3.99 | one-time |


## Frequently asked questions

### Is HydroTally free?

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

### Is Pawtern free?

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

### Do HydroTally or Pawtern have ads?

HydroTally shows ads; Pawtern does not.

### Which is updated more often, HydroTally or Pawtern?

HydroTally ships an update every 5 months, and Pawtern every 2 weeks. Most recently, HydroTally was updated on October 17, 2026 and Pawtern on October 25, 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.*