# 168 vs HydraFlow

The clearest difference is in-app purchases: HydraFlow at none against 168's 2. 168's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 168 sells 2 in-app purchases, starting at $5.99 per 7 days. HydraFlow asks for nothing beyond the download.

## The numbers

| Metric | 168 | HydraFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 43 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hakon Andreas Endresen Kjelseth](https://appshunter.io/developer/1810887656) | [SADIK SAZDAGI](https://appshunter.io/developer/1883520486) |

## What reviewers say

### 168

[App page](https://appshunter.io/ios/app/168-fasting-tracker/id6749279937)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 168 Premium - Weekly | $5.99 | per 7 days |
| 168 Premium - Annual | $29.99 | per year |


### HydraFlow

[App page](https://appshunter.io/ios/app/hydraflow-water-tracker/id6760320407)

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

**In-app purchases:** none


## Frequently asked questions

### Is 168 free?

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

### Is HydraFlow free?

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

### Do 168 or HydraFlow have ads?

Neither 168 nor HydraFlow shows ads.

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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.*