# Hundred Day Challenge vs Just Commit

The clearest difference is in-app purchases: Just Commit at none against Hundred Day Challenge's 1. Just Commit also leads on iOS requirement (15.1 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Hundred Day Challenge sells 1 one-off in-app purchase. Just Commit asks for nothing beyond the download.

Hundred Day Challenge ships an update every 9 months, Just Commit every 5 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Hundred Day Challenge | Just Commit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/hundred-day-challenge/id6749242232/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 40 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Urs Jaeggi](https://appshunter.io/developer/1709239048) | [PETAR PETROV SYULEYMEZYAN](https://appshunter.io/developer/1868261381) |

## What reviewers say

### Hundred Day Challenge

[App page](https://appshunter.io/ios/app/hundred-day-challenge/id6749242232)

This app helps you build lasting habits and achieve goals through consistent, small daily actions over 100 days. Track multiple challenges simultaneously, visualize your progress, and stay motivated with visual cues and milestone rewards.

**Highlights:** Multiple challenges at once, Daily completion tracking, Progress visualization, Motivating main screen, Icon selection per challenge, Progress rewards

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


### Just Commit

[App page](https://appshunter.io/ios/app/just-commit-habit-tracker/id6757683172)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hundred Day Challenge free?

Hundred Day Challenge is free to download, with in-app purchases available.

### Is Just Commit free?

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

### Do Hundred Day Challenge or Just Commit have ads?

Neither Hundred Day Challenge nor Just Commit shows ads.

### Which is updated more often, Hundred Day Challenge or Just Commit?

Hundred Day Challenge ships an update every 9 months, and Just Commit every 5 months. Most recently, Hundred Day Challenge was updated on October 28, 2026 and Just Commit 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.*