# YKBI vs Transform 75

The clearest difference is in-app purchases: YKBI at none against Transform 75's 6. YKBI also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). Transform 75's advantage is update cadence (weekly vs every 21 months). On price and device support there is nothing between them.

Both are free to download. Transform 75 sells 6 in-app purchases, starting at $1.99 per 7 days. YKBI asks for nothing beyond the download.

YKBI ships an update every 21 months, Transform 75 weekly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | YKBI | Transform 75 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/transform-75-hard-challenge/id6741768601/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 236 MB | 54 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FitPhilia](https://appshunter.io/developer/1178311498) | [Ahammed Zabith P](https://appshunter.io/developer/1795464757) |

## What reviewers say

### YKBI

[App page](https://appshunter.io/ios/app/ykbi/id6445909273)

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

**In-app purchases:** none


### Transform 75

[App page](https://appshunter.io/ios/app/transform-75-hard-challenge/id6741768601)

This app helps you track progress through a 75-day physical and mental challenge. It provides tools for logging daily tasks, workouts, hydration, and meals, with features to capture progress photos and set reminders. Users can also share their journey and track multiple attempts.

**Highlights:** Daily progress tracking, Workout and meal logging, Hydration monitoring, Progress photo capture, Personalized reminders, Multiple attempt tracking, Social sharing

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription with offer | $8.99 | per year |
| Yearly Subscription | $8.99 | per year |
| Lifetime | $8.99 | one-time |
| Transform75 - Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is YKBI free?

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

### Is Transform 75 free?

Transform 75 is free to download, with in-app purchases available.

### Do YKBI or Transform 75 have ads?

Transform 75 shows ads; YKBI does not.

### Which is updated more often, YKBI or Transform 75?

YKBI ships an update every 21 months, and Transform 75 weekly. Most recently, YKBI was updated on September 18, 2026 and Transform 75 on September 14, 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.*