# FastFit vs Biotandem

The clearest difference is ads: Biotandem at none against FastFit's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. FastFit sells 4 in-app purchases, starting at $1.99 per 7 days and Biotandem sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | FastFit | Biotandem |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 48 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Izni Burak Demirtas](https://appshunter.io/developer/1733111991) | [IOWorks Corporation](https://appshunter.io/developer/1824146835) |

## What reviewers say

### FastFit

[App page](https://appshunter.io/ios/app/fastfit-intermittent-fasting/id6478510488)

This app guides you through personalized intermittent fasting schedules to help you lose weight, improve metabolic health, and boost energy. It offers intuitive tracking, meal recommendations, and progress insights to keep you motivated on your wellness journey.

**Highlights:** Personalized fasting schedules, Progress tracking, Meal recommendations, Weight loss guidance, Metabolic health improvement, Energy level boosting

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly Subscription | $3.99 | per month |
| Annual Subscription | $24.99 | per year |
| Remove Ads | $4.99 | one-time |


### Biotandem

[App page](https://appshunter.io/ios/app/biotandem/id6748063868)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Family (Monthly) | $4.99 | per month |
| Family (Yearly) | $49.99 | per year |
| Pro (Monthly) | $49.99 | per month |
| Pro + Oncology (Monthly) | $69.99 | per month |
| Pro + Cardiovascular (Monthly) | $79.99 | per month |
| Pro + Combo (Monthly) | $89.99 | per month |
| Pro (Yearly) | $499.99 | per year |
| Pro + Oncology (Yearly) | $799.99 | per year |
| Pro + Cardiovascular (Yearly) | $799.99 | per year |
| Pro + Combo (Yearly) | $899.99 | per year |


## Frequently asked questions

### Is FastFit free?

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

### Is Biotandem free?

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

### Do FastFit or Biotandem have ads?

FastFit shows ads; Biotandem does not.

### Which is updated more often, FastFit or Biotandem?

FastFit ships an update every 3 weeks, and Biotandem every 3 weeks. Most recently, FastFit was updated on October 30, 2026 and Biotandem on October 30, 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.*