# inOut Tracker vs Drink Keeping

The clearest difference is rating: inOut Tracker at 5.0 against Drink Keeping's 4.0. inOut Tracker also leads on ratings volume (3 vs 1). Drink Keeping's advantage is update cadence (every 4 days vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

inOut Tracker holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

inOut Tracker ships an update every 2 months, Drink Keeping every 4 days. The most recent releases landed on September 15, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | inOut Tracker | Drink Keeping |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/inout-tracker/id1637413709/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/drink-keeping/id6733225712/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 3 MB | 13 MB |
| Requires iOS | 15.4 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sebastian Whitfield](https://appshunter.io/developer/1637413711) | [Chengdu Xuhuai Ruogu Technology Co., Ltd.](https://appshunter.io/developer/1602346856) |

## What reviewers say

### inOut Tracker

[App page](https://appshunter.io/ios/app/inout-tracker/id1637413709)

Monitor your daily water intake and output with detailed logging options. Receive timely notifications to maintain optimal hydration levels and prevent fatigue. Features customizable targets, quick entry options, and historical data review.

**Highlights:** Customizable daily hydration targets, Log water inputs and outputs, Quick entry customization, Daily intake and average summaries, Hydration reminder notifications, History view of logs

**Features:** macOS Compatibility

**In-app purchases:** none


### Drink Keeping

[App page](https://appshunter.io/ios/app/drink-keeping/id6733225712)

This app helps you monitor your daily water intake with personalized goals, smart reminders, and detailed statistics. Easily log your drinks and receive progress notifications to maintain a healthy lifestyle and stay energized.

**Highlights:** Custom water intake goals, Smart reminders, Hydration history and statistics, One-tap logging, Customizable drink sizes, Progress notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is inOut Tracker free?

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

### Is Drink Keeping free?

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

### Which has better reviews, inOut Tracker or Drink Keeping?

inOut Tracker is rated higher. inOut Tracker averages 5.0 out of 5 from 3 ratings, while Drink Keeping averages 4.0 from 1 ratings.

### Do inOut Tracker or Drink Keeping have ads?

Neither inOut Tracker nor Drink Keeping shows ads.

### Which is updated more often, inOut Tracker or Drink Keeping?

inOut Tracker ships an update every 2 months, and Drink Keeping every 4 days. Most recently, inOut Tracker was updated on September 15, 2026 and Drink Keeping on June 2, 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.*