# SAWM 360 vs Hydro

The clearest difference is update cadence: Hydro at every 6 weeks against SAWM 360's every 7 months. Hydro also leads on iOS requirement (18.6 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SAWM 360 sells 8 one-off in-app purchases and Hydro sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SAWM 360 ships an update every 7 months, Hydro every 6 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SAWM 360 | Hydro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Size | 37 MB | 12 MB |
| Requires iOS | 26.1 | **18.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ousmane K TRAORE](https://appshunter.io/developer/1832356061) | [Andre Destro](https://appshunter.io/developer/850379919) |

## What reviewers say

### SAWM 360

[App page](https://appshunter.io/ios/app/sawm-360/id6756280452)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Support | $0.99 | one-time |
| Small Tip pour soutenir | $0.99 | one-time |
| Medium Support | $2.99 | one-time |
| Medium SAWM Support | $2.99 | one-time |
| Great Support | $4.99 | one-time |
| Big Support | $4.99 | one-time |
| Premium Support | $9.99 | one-time |
| Premium SAWM Support Tip | $9.99 | one-time |


### Hydro

[App page](https://appshunter.io/ios/app/hydro-water-tracker/id6761480955)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydro Premium (Monthly) | $1.99 | per month |
| Hydro Premium (Yearly) | $9.99 | per year |


## Frequently asked questions

### Is SAWM 360 free?

SAWM 360 is free to download, with in-app purchases available.

### Is Hydro free?

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

### Do SAWM 360 or Hydro have ads?

Neither SAWM 360 nor Hydro shows ads.

### Which is updated more often, SAWM 360 or Hydro?

SAWM 360 ships an update every 7 months, and Hydro every 6 weeks. Most recently, SAWM 360 was updated on October 2, 2026 and Hydro on October 10, 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.*