# Interval Timer MAX vs Aqua Flow

The clearest difference is in-app purchases: Interval Timer MAX at none against Aqua Flow's 1. Aqua Flow's advantage is update cadence (fortnightly vs every 6 months) and ratings volume (4 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Aqua Flow sells 1 in-app purchase, starting at $29.99 per year. Interval Timer MAX asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Interval Timer MAX against 5.0 for Aqua Flow. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Interval Timer MAX ships an update every 6 months, Aqua Flow fortnightly. The most recent releases landed on September 29, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Interval Timer MAX | Aqua Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/interval-timer-max/id6753690002/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/aqua-flow-water-reminder/id6759348234/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 16 MB | 50 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ThaiGenius LLC](https://appshunter.io/developer/1806032667) | [Orhan Kutlu](https://appshunter.io/developer/1878215460) |

## What reviewers say

### Interval Timer MAX

[App page](https://appshunter.io/ios/app/interval-timer-max/id6753690002)

This app provides a customizable interval timer for various activities like workouts and meditation. It offers a selection of high-quality sounds to enhance your experience.

**Highlights:** Customizable interval timer, Workout timer, Meditation timer, High-quality sound selection, Simple interface

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

**In-app purchases:** none


### Aqua Flow

[App page](https://appshunter.io/ios/app/aqua-flow-water-reminder/id6759348234)

Build a lasting hydration habit with gentle, personalized reminders and clear progress tracking. Log various drinks and view trends in a calm, distraction-free environment. Your data remains private and on your device.

**Highlights:** Personalized daily hydration goals, Gentle, customizable reminders, Track water, coffee, tea, and more, Weekly and monthly progress trends, Distraction-free design, Data privacy: no ads, no account

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AquaFlow Premium – Annual | $29.99 | per year |


## Frequently asked questions

### Is Interval Timer MAX free?

Interval Timer MAX is free to download, with no in-app purchases.

### Is Aqua Flow free?

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

### Which has better reviews, Interval Timer MAX or Aqua Flow?

Interval Timer MAX and Aqua Flow are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Interval Timer MAX or Aqua Flow have ads?

Neither Interval Timer MAX nor Aqua Flow shows ads.

### Which is updated more often, Interval Timer MAX or Aqua Flow?

Interval Timer MAX ships an update every 6 months, and Aqua Flow fortnightly. Most recently, Interval Timer MAX was updated on September 29, 2026 and Aqua Flow on October 17, 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.*