# Water Tracker & Reminder App vs Octi Flow

The clearest difference is iOS requirement: Octi Flow at 15.0 against Water Tracker & Reminder App's 17. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Water Tracker & Reminder App sells 2 in-app purchases, starting at $2.99 per month and Octi Flow sells 1 in-app purchase, starting at $7.99 per year. Whichever you choose, the download price is not the number that matters.

Water Tracker & Reminder App ships an update every 3 weeks, Octi Flow every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Water Tracker & Reminder App | Octi Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 30 MB | 169 MB |
| Requires iOS | 17 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Maksym Zaivyi](https://appshunter.io/developer/1809719085) | [Katsiaryna Filimonava](https://appshunter.io/developer/6783334532) |

## What reviewers say

### Water Tracker & Reminder App

[App page](https://appshunter.io/ios/app/water-tracker-and-reminder-app/id6760648161)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium per month | $2.99 | per month |
| Premium for a year | $19.99 | per year |


### Octi Flow

[App page](https://appshunter.io/ios/app/octi-flow-water-tracker/id6783334530)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octi Premium | $7.99 | per year |


## Frequently asked questions

### Is Water Tracker & Reminder App free?

Water Tracker & Reminder App is free to download, with in-app purchases available.

### Is Octi Flow free?

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

### Do Water Tracker & Reminder App or Octi Flow have ads?

Neither Water Tracker & Reminder App nor Octi Flow shows ads.

### Which is updated more often, Water Tracker & Reminder App or Octi Flow?

Water Tracker & Reminder App ships an update every 3 weeks, and Octi Flow every 2 weeks. Most recently, Water Tracker & Reminder App was updated on October 31, 2026 and Octi Flow on October 31, 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.*