# Mood Tracker vs HydroProof

The clearest difference is in-app purchases: HydroProof at none against Mood Tracker's 3. Mood Tracker's advantage is iOS requirement (15.1 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Mood Tracker sells 3 in-app purchases, starting at $4.99 per month. HydroProof asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 27, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Mood Tracker | HydroProof |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Size | 75 MB | 4 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Darren Morgan](https://appshunter.io/developer/1830422688) | [Andre Veltens](https://appshunter.io/developer/1858390791) |

## What reviewers say

### Mood Tracker

[App page](https://appshunter.io/ios/app/mood-tracker-moodgenius/id6749435444)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $24.99 | per year |
| Lifetime | $149.99 | one-time |


### HydroProof

[App page](https://appshunter.io/ios/app/hydroproof/id6761188208)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Mood Tracker free?

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

### Is HydroProof free?

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

### Do Mood Tracker or HydroProof have ads?

Neither Mood Tracker nor HydroProof shows ads.

### Which is updated more often, Mood Tracker or HydroProof?

Mood Tracker ships an update every 4 days, and HydroProof every 4 days. Most recently, Mood Tracker was updated on September 27, 2026 and HydroProof on September 13, 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.*