# Master One vs Pacts

The clearest difference is in-app purchases: Pacts at none against Master One's 1. Pacts also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). Master One's advantage is iOS requirement (16.6 vs 26.0). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Master One sells 1 one-off in-app purchase. Pacts asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Master One against 5.0 for Pacts. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Master One ships an update every 2 months, Pacts every 3 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Master One | Pacts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/master-one-habit-builder/id6504889928/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/pacts-lifes-experiments/id6762643241/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 5 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mary Ogawa](https://appshunter.io/developer/1615657857) | [Odd Omens](https://appshunter.io/developer/1719285041) |

## 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 |


### Pacts

[App page](https://appshunter.io/ios/app/pacts-lifes-experiments/id6762643241)

Define personal rules and set ambitious goals to create lasting change. Commit to daily actions that build momentum and shape your identity through consistent repetition.

**Highlights:** Define personal rules (Protocols), Set and track Goals, Create time-bound Pacts (daily commitments), Automatic rule application and reminders, Streak risk warnings, Flexible check-in options

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

**In-app purchases:** none


## Frequently asked questions

### Is Master One free?

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

### Is Pacts free?

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

### Which has better reviews, Master One or Pacts?

Master One and Pacts are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Master One or Pacts have ads?

Master One shows ads; Pacts does not.

### Which is updated more often, Master One or Pacts?

Master One ships an update every 2 months, and Pacts every 3 days. Most recently, Master One was updated on October 10, 2026 and Pacts on October 24, 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.*