# 21DaysOfChange vs Chew Well

The clearest difference is in-app purchases: Chew Well at none against 21DaysOfChange's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 21DaysOfChange sells 4 in-app purchases, starting at $5.99 per month. Chew Well asks for nothing beyond the download.

21DaysOfChange ships an update every 9 months, Chew Well every 14 months. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | 21DaysOfChange | Chew Well |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 14 months |
| Monetization | — | Free |
| Size | 59 MB | 25 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hong Son Vu](https://appshunter.io/developer/1767993431) | [YUJIN PARK](https://appshunter.io/developer/1588212299) |

## What reviewers say

### 21DaysOfChange

[App page](https://appshunter.io/ios/app/21daysofchange/id6677019535)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 21DaysOfChange Monthly Premium | $5.99 | per month |
| 21DaysOfChange Monthly Business | $17.99 | per month |
| 21DaysOfChange Yearly Premium | $71.99 | per year |
| 21DaysOfChange Yearly Business | $214.99 | per year |


### Chew Well

[App page](https://appshunter.io/ios/app/chew-well-meal-habit-timer/id6737403214)

This app helps you develop healthier eating habits by encouraging slower meal consumption. It features a timer to guide you through savoring your food and chewing thoroughly, inspired by the leisurely dining practices of the French. Track your progress with reports on your eating pace.

**Highlights:** Meal timer with alerts, Encourages slow eating, Promotes thorough chewing, Eating pace reports, Inspired by French dining habits, Develops healthy eating habits

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 21DaysOfChange free?

21DaysOfChange is free to download, with in-app purchases available.

### Is Chew Well free?

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

### Do 21DaysOfChange or Chew Well have ads?

Neither 21DaysOfChange nor Chew Well shows ads.

### Which is updated more often, 21DaysOfChange or Chew Well?

21DaysOfChange ships an update every 9 months, and Chew Well every 14 months. Most recently, 21DaysOfChange was updated on September 18, 2026 and Chew Well on June 4, 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.*