# iThinkFit Plus vs Butt Booster

The clearest difference is in-app purchases: iThinkFit Plus at none against Butt Booster's 2. Butt Booster's advantage is update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. Butt Booster sells 2 in-app purchases, starting at $7.99 per month. iThinkFit Plus asks for nothing beyond the download.

iThinkFit Plus ships an update every 3 months, Butt Booster every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iThinkFit Plus | Butt Booster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ithinkfit-plus/id6443802046/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 164 MB | 40 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [I Think Fit Gym LLC](https://appshunter.io/developer/1386938692) | [Divyesh Patel](https://appshunter.io/developer/1880116447) |

## What reviewers say

### iThinkFit Plus

[App page](https://appshunter.io/ios/app/ithinkfit-plus/id6443802046)

Access personalized workout programs and track your fitness journey. Monitor workouts, nutrition, habits, and measurements with coach guidance. Connect with communities and wearable devices for comprehensive health tracking.

**Highlights:** Workout programs and tracking, Nutrition and habit tracking, Coach messaging, Digital communities, Body measurement tracking, Wearable device integration

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Butt Booster

[App page](https://appshunter.io/ios/app/butt-booster-home-workout/id6783716560)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Yearly Premium | $39.99 | per year |


## Frequently asked questions

### Is iThinkFit Plus free?

iThinkFit Plus is free to download, with no in-app purchases.

### Is Butt Booster free?

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

### Do iThinkFit Plus or Butt Booster have ads?

Neither iThinkFit Plus nor Butt Booster shows ads.

### Which is updated more often, iThinkFit Plus or Butt Booster?

iThinkFit Plus ships an update every 3 months, and Butt Booster every 3 weeks. Most recently, iThinkFit Plus was updated on November 3, 2026 and Butt Booster on October 31, 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.*