# 100 Days After vs 100 Day Challenge

The clearest difference is monetization model: 100 Days After at free against 100 Day Challenge's freemium. 100 Days After also leads on rating (4.2 vs 3.9). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

100 Days After holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 6 and 17 respectively. Written reviews complicate that: 62% of 100 Days After's written reviews are positive against 70% of 100 Day Challenge's, so the app with the better star average is not the one people write more warmly about.

100 Days After ships an update every 4 months, 100 Day Challenge every 3 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | 100 Days After | 100 Day Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/100-days-after/id444664249/reviews)** | [3.9 (17 ratings)](https://appshunter.io/ios/app/100-day-challenge/id468777725/reviews) |
| Number of ratings | 6 | **17** |
| Positive reviews | 62.1% of reviews | **69.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Freemium |
| Size | 9 MB | 16 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Broong, Inc.](https://appshunter.io/developer/324853708) | [Goals Guy, LLC](https://appshunter.io/developer/399815423) |

## What reviewers say

### 100 Days After

[App page](https://appshunter.io/ios/app/100-days-after/id444664249)

Calculate the 100th day from any given date or celebrate anniversaries. Export calculated dates as events to your iPhone's calendar.

**Highlights:** Calculate 100th day from any date, Celebrate anniversaries, Export dates as calendar events, New user interface, New features

**Features:** Vision Pro support

**In-app purchases:** none


### 100 Day Challenge

[App page](https://appshunter.io/ios/app/100-day-challenge/id468777725)

This app provides a system, tools, and growth hacking strategies to transform your life and career in 100 days. It offers a master class in exponential growth, focusing on performance sprints and superior execution strategies to bridge the gap between intentions and results.

**Highlights:** System for exponential growth, Tools and growth hacking strategies, 100-day transformation program, Performance sprint framework, Daily accountability, Superior execution strategies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 100 Days After free?

100 Days After is free to download, with no in-app purchases.

### Is 100 Day Challenge free?

100 Day Challenge is free to download, with no in-app purchases.

### Which has better reviews, 100 Days After or 100 Day Challenge?

100 Days After is rated higher. 100 Days After averages 4.2 out of 5 from 6 ratings, while 100 Day Challenge averages 3.9 from 17 ratings.

### Do 100 Days After or 100 Day Challenge have ads?

Neither 100 Days After nor 100 Day Challenge shows ads.

### Which is updated more often, 100 Days After or 100 Day Challenge?

100 Days After ships an update every 4 months, and 100 Day Challenge every 3 months. Most recently, 100 Days After was updated on November 1, 2026 and 100 Day Challenge on November 1, 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.*