# Iron Addiction vs Styku

The clearest difference is review sentiment: Iron Addiction at 100% against Styku's 56%. Iron Addiction also leads on monetization model (free vs free with in-app purchases) and rating (5.0 vs 4.7). Styku's advantage is ratings volume (265 vs 44). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Iron Addiction holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Styku has 265 ratings behind it against 44, so its average is the more settled of the two. Written reviews point the same way: 100% of Iron Addiction's written reviews are positive against 56% of Styku's.

Iron Addiction ships an update every 2 months, Styku monthly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Iron Addiction | Styku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (44 ratings)](https://appshunter.io/ios/app/iron-addiction/id1582863647/reviews)** | [4.7 (265 ratings)](https://appshunter.io/ios/app/styku/id1626065310/reviews) |
| Number of ratings | 44 | **265** |
| Positive reviews | **100.0% of reviews** | 55.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 162 MB | 69 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Iron Addiction, LLC](https://appshunter.io/developer/1582863649) | [Styku LLC](https://appshunter.io/developer/1626065312) |

## What reviewers say

### Iron Addiction

[App page](https://appshunter.io/ios/app/iron-addiction/id1582863647)

Track workouts, meals, and body measurements with personalized training plans and real-time coach messaging. Achieve your fitness goals with progress tracking, scheduled activities, and reminders. Connects to wearable devices for seamless health data syncing.

**Highlights:** Workout tracking, Meal logging, Progress measurement, Personalized training plans, Real-time coach messaging, Body measurement tracking, Wearable device integration

**Features:** Apple Wallet

**In-app purchases:** none


### Styku

[App page](https://appshunter.io/ios/app/styku/id1626065310)

Visualize your body's transformation in 3D with this app. It uses patented scanning technology to provide detailed insights into your shape and composition, going beyond traditional weight measurements. Track progress with side-by-side comparisons and personalized wellness information.

**Highlights:** 3D body visualization, Wellness and shape insights, Track body fat percentage, Track lean mass, Compare scan results, Regional body changes

**In-app purchases:** none


## Frequently asked questions

### Is Iron Addiction free?

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

### Is Styku free?

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

### Which has better reviews, Iron Addiction or Styku?

Iron Addiction is rated higher. Iron Addiction averages 5.0 out of 5 from 44 ratings, while Styku averages 4.7 from 265 ratings.

### Do Iron Addiction or Styku have ads?

Neither Iron Addiction nor Styku shows ads.

### Which is updated more often, Iron Addiction or Styku?

Iron Addiction ships an update every 2 months, and Styku monthly. Most recently, Iron Addiction was updated on October 24, 2026 and Styku 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.*