# Master One vs ONE Habit Tracker

The clearest difference is ads: ONE Habit Tracker at none against Master One's shown. Master One's advantage is iOS requirement (16.6 vs 18.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Master One sells 1 one-off in-app purchase and ONE Habit Tracker sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Master One against 5.0 for ONE Habit Tracker. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 8, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Master One | ONE Habit Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/master-one-habit-builder/id6504889928/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/one-habit-tracker-progress/id6748330634/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 3 MB | 18 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mary Ogawa](https://appshunter.io/developer/1615657857) | [Jeff Cedilla](https://appshunter.io/developer/944615129) |

## What reviewers say

### Master One

[App page](https://appshunter.io/ios/app/master-one-habit-builder/id6504889928)

This app guides you in building habits by focusing on one at a time. You can set custom durations, track your progress and streaks, and review your completed habits. It offers a clean, distraction-free interface with options to archive or restart habits.

**Highlights:** One habit focus, Custom habit durations, Streak and history tracking, Mastered habits archive, Minimalist design, Archive and restart habits, Strict mode for perfect streaks

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LIFE_PURCHASE | $0.99 | one-time |


### ONE Habit Tracker

[App page](https://appshunter.io/ios/app/one-habit-tracker-progress/id6748330634)

This app helps you build lasting habits by focusing on mastering one at a time. It uses psychology-backed commitment periods, intelligent insights, and streak risk prediction to prevent failure and celebrate your wins.

**Highlights:** Master one habit at a time, Commitment-based system (30, 60, 90 days), Streak risk prediction, Mood tracking for trigger identification, Visual streak counters and milestone celebrations, Weekly analytics and progress reports, Distraction-free interface with dark mode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $6.99 | per year |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Master One free?

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

### Is ONE Habit Tracker free?

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

### Which has better reviews, Master One or ONE Habit Tracker?

Master One and ONE Habit Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Master One or ONE Habit Tracker have ads?

Master One shows ads; ONE Habit Tracker does not.

### Which is updated more often, Master One or ONE Habit Tracker?

Master One ships an update every 2 months, and ONE Habit Tracker every 2 months. Most recently, Master One was updated on June 8, 2026 and ONE Habit Tracker on September 14, 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.*