# Master One vs Build Momentum

The clearest difference is in-app purchases: Build Momentum at none against Master One's 1. Build Momentum also leads on ads (none vs shown) and device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

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

Master One ships an update every 2 months, Build Momentum monthly. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Master One | Build Momentum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/master-one-habit-builder/id6504889928/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 51 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mary Ogawa](https://appshunter.io/developer/1615657857) | [Dinu Mihnea](https://appshunter.io/developer/1812909481) |

## 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 |


### Build Momentum

[App page](https://appshunter.io/ios/app/build-momentum/id6745558765)

**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 Build Momentum free?

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

### Do Master One or Build Momentum have ads?

Master One shows ads; Build Momentum does not.

### Which is updated more often, Master One or Build Momentum?

Master One ships an update every 2 months, and Build Momentum monthly. Most recently, Master One was updated on November 4, 2026 and Build Momentum on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*