# 21 Day Container Tracker vs 4Mfit

The clearest difference is monetization model: 4Mfit at free with in-app purchases against 21 Day Container Tracker's subscription. 4Mfit also leads on rating (5.0 vs 4.7). 21 Day Container Tracker's advantage is ratings volume (510 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 21 Day Container Tracker sells 3 in-app purchases, starting at $4.99 per 7 days and 4Mfit sells 1 in-app purchase, starting at $200.00 per month. Whichever you choose, the download price is not the number that matters.

4Mfit holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: 21 Day Container Tracker has 510 ratings behind it against 3, so its average is the more settled of the two.

21 Day Container Tracker ships an update every 3 weeks, 4Mfit monthly. The most recent releases landed on September 7, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 21 Day Container Tracker | 4Mfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (510 ratings)](https://appshunter.io/ios/app/21-day-container-tracker/id994287813/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/4mfit/id6463041643/reviews)** |
| Number of ratings | **510** | 3 |
| Positive reviews | 74.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 45 MB | 47 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Cube Software Solutions Inc.](https://appshunter.io/developer/994287812) | [4MFit LLC](https://appshunter.io/developer/1703836256) |

## What reviewers say

### 21 Day Container Tracker

[App page](https://appshunter.io/ios/app/21-day-container-tracker/id994287813)

This app helps users track their progress on a 21-day program. It allows for easy logging of containers, water intake, exercises, and body measurements. Visualize your journey with progress graphs and access an approved food list.

**Highlights:** Tap & Track™ container and water logging, Automatic container generation, Body Part Indicator™ measurements, Exercise tracking with custom options, Daily notes and body weight tracking, Progress graphs, Approved food list

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 21 Day Tracker Weekly | $4.99 | per 7 days |
| 21 Day Container Tracker Pro | $29.99 | per year |
| 21 Day Tracker Annual Pro | $29.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 📊 Helpful for tracking progress
- 🔍 Comprehensive food lists
- 🗓️ Convenient for daily tracking
- 💪 Supports various fitness programs

**What reviewers complain about**

- 💰 Paid subscription required
- 🔁 Resets data after each cycle
- 🚫 Limited customization options
- 📋 Lacks detailed food logging
- 🔔 Needs more notifications/reminders

**Reported bugs**

- Data loss when switching between cycles
- Compatibility issues with older devices
- Inconsistent container tracking behavior

**Requested features**

- Ability to manually enter food items
- Long-term data tracking and analytics
- Integration with other fitness apps
- Customizable container settings
- Meal planning and recipe suggestions


### 4Mfit

[App page](https://appshunter.io/ios/app/4mfit/id6463041643)

This app offers personalized 1:1 coaching for weight loss and healthy lifestyle changes. It includes customized meal plans, workout routines, progress tracking, and direct messaging with a coach. Access educational resources and recipes to support your fitness journey.

**Highlights:** 1:1 personalized coaching, Customized calorie deficit and nutrition guidance, Adjustable meal plans, Weekly progress check-ins, Private messaging with coach, Tailored workout routines and videos, In-app workout logger, Educational resources and recipes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coaching | $200.00 | per month |


## Frequently asked questions

### Is 21 Day Container Tracker free?

21 Day Container Tracker is free to download, with in-app purchases available.

### Is 4Mfit free?

4Mfit is free to download, with in-app purchases available.

### Which has better reviews, 21 Day Container Tracker or 4Mfit?

4Mfit is rated higher. 21 Day Container Tracker averages 4.7 out of 5 from 510 ratings, while 4Mfit averages 5.0 from 3 ratings.

### Do 21 Day Container Tracker or 4Mfit have ads?

Neither 21 Day Container Tracker nor 4Mfit shows ads.

### Which is updated more often, 21 Day Container Tracker or 4Mfit?

21 Day Container Tracker ships an update every 3 weeks, and 4Mfit monthly. Most recently, 21 Day Container Tracker was updated on September 7, 2026 and 4Mfit on September 15, 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.*