# Intermittent Fasting vs TDEE

Intermittent Fasting and TDEE both sit at 4.8 stars, but that hides the real split: 90% of Intermittent Fasting's written reviews are positive against 36% of TDEE's. Intermittent Fasting also leads on ratings volume (15K vs 499). TDEE's advantage is monetization model (free with in-app purchases vs subscription) and ads (none vs shown). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Intermittent Fasting sells 6 in-app purchases, starting at $3.99 per 7 days and TDEE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Intermittent Fasting against 4.7 for TDEE. That said, the two scores are not equally well evidenced: Intermittent Fasting has 15K ratings behind it against 499, so its average is the more settled of the two. Written reviews are what separate them: 90% of Intermittent Fasting's written reviews are positive against 36% of TDEE's.

Intermittent Fasting ships an update every 2 months, TDEE every 4 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | Intermittent Fasting | TDEE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (15K ratings)](https://appshunter.io/ios/app/intermittent-fasting-purefast/id823305987/reviews)** | [4.7 (499 ratings)](https://appshunter.io/ios/app/tdee/id1398051875/reviews) |
| Number of ratings | **15K** | 499 |
| Positive reviews | **90.3% of reviews** | 36.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 334 MB | 41 MB |
| Requires iOS | **16.0** | 17.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fast Builder Limited](https://appshunter.io/developer/596300475) | [Apperitif Limited](https://appshunter.io/developer/1398051874) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-purefast/id823305987)

Achieve your weight loss goals with personalized workout and meal plans. Track your progress and receive expert guidance to ensure safe and effective exercise. Take control of your health and fitness journey.

**Highlights:** Personalized workout plans, Personalized meal plans, Variety of exercises, Progress tracking, Expert guidance

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lose weight in just 12 weeks! | $3.99 | per 7 days |
| Lose Weight Fast with PRO | $12.99 | per month |
| Lose weight in just 30 days! | $19.99 | per 3 months |
| Lock-in our lowest price! | $29.99 | per year |
| Weight Loss Premium | $39.99 | per year |
| Weight Loss Premium | $49.99 | per year |

**What reviewers like**

- 🚀 Effective workouts
- 👍 Variety of exercises
- 💪 Helps with weight loss
- 🙌 Motivating and encouraging
- 🕰️ Short and manageable workouts

**What reviewers complain about**

- 🔒 Requires internet connection
- 🤔 Limited customization options
- 🤕 Can be challenging for beginners
- 🕰️ Workouts can be repetitive

**Reported bugs**

- Workout duration inconsistencies
- Compatibility issues with certain devices

**Requested features**

- Offline mode
- More personalized workout plans
- Ability to track water intake
- Reminders and notifications


### TDEE

[App page](https://appshunter.io/ios/app/tdee/id1398051875)

Calculate your Total Daily Energy Expenditure (TDEE) using your body metrics. This app then helps you divide your daily calorie allowance into precise macronutrient targets for your specific diet.

**Highlights:** TDEE calculation, BMR calculation, BMI calculation, Macronutrient splitting, Diet tailoring

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TDEE Pro | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Works perfectly
- 👍 Great app
- 👍 Nice and simple
- 👍 Good for everyday use

**What reviewers complain about**

- 🐛 Inaccurate calculations (BMI, calories, nutrients)
- 🐛 Glitches and disappears when inputting data
- 🐛 White screen/not working
- 🐛 Ads cover results
- 🐛 Only metric system

**Reported bugs**

- Cannot fully input information due to glitching
- White screen when choosing drop list
- Wouldn't load secondary windows
- BMI score is astronomical
- Results display blank

**Requested features**

- Support for different units (imperial/metric)
- Fix ad placement to not cover results
- Allow Vietnamese language


## Frequently asked questions

### Is Intermittent Fasting free?

Intermittent Fasting is free to download, with in-app purchases available.

### Is TDEE free?

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

### Which has better reviews, Intermittent Fasting or TDEE?

Intermittent Fasting is rated higher. Intermittent Fasting averages 4.8 out of 5 from 15K ratings, while TDEE averages 4.7 from 499 ratings.

### Do Intermittent Fasting or TDEE have ads?

Intermittent Fasting shows ads; TDEE does not.

### Which is updated more often, Intermittent Fasting or TDEE?

Intermittent Fasting ships an update every 2 months, and TDEE every 4 weeks. Most recently, Intermittent Fasting was updated on October 29, 2026 and TDEE on October 29, 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.*