# Allurion vs TraceIron

The clearest difference is in-app purchases: Allurion at none against TraceIron's 3. Allurion also leads on iOS requirement (15.0 vs 26.5). TraceIron's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. TraceIron sells 3 in-app purchases, starting at $4.99 per month. Allurion asks for nothing beyond the download.

Allurion ships an update every 3 weeks, TraceIron every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Allurion | TraceIron |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (778 ratings)](https://appshunter.io/ios/app/allurion/id1114672166/reviews)** | — |
| Number of ratings | **778** | — |
| Positive reviews | 64.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 97 MB | 27 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Allurion Technologies,inc.](https://appshunter.io/developer/1114672165) | [CESAR ANTONIO GUTIERREZ](https://appshunter.io/developer/6797922491) |

## What reviewers say

### Allurion

[App page](https://appshunter.io/ios/app/allurion/id1114672166)

This app supports a weight loss program by tracking weight, steps, sleep, and exercise. It facilitates data sharing with a healthcare team, enables messaging and telehealth, and offers an AI coach for personalized guidance.

**Highlights:** Weight, step, sleep, and exercise tracking, Data sharing with healthcare team, In-app messaging and telehealth, AI weight loss coach, Library of program articles, HealthKit integration

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⭐ Excellent app and program
- 🎯 Helpful for weight loss journey
- 👍 Easy to use and navigate
- 📊 Provides detailed tracking and analytics
- 💪 Motivating and supportive

**What reviewers complain about**

- 🐛 Connectivity issues with Bluetooth scale
- 🔄 Sync problems with Apple Health
- 🔍 Lack of detailed data visualization
- 🔧 Bugs and crashes after updates
- 🤔 Confusing UI changes in recent updates

**Reported bugs**

- App freezes or crashes frequently
- Incorrect weight and body metric calculations
- Sync issues between app and connected devices
- User data loss after updates
- Persistent connection problems with Bluetooth scale

**Requested features**

- Add more exercise tracking options
- Improve data sync with third-party apps
- Restore detailed body composition tracking
- Provide manual weight entry option
- Enhance customization and personalization


### TraceIron

[App page](https://appshunter.io/ios/app/traceiron/id6797922489)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TraceIron+ | $4.99 | per month |
| 150 Maestro credits | $1.49 | one-time |
| Toxic Theme | $2.99 | one-time |


## Frequently asked questions

### Is Allurion free?

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

### Is TraceIron free?

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

### Do Allurion or TraceIron have ads?

Neither Allurion nor TraceIron shows ads.

### Which is updated more often, Allurion or TraceIron?

Allurion ships an update every 3 weeks, and TraceIron every 3 days. Most recently, Allurion was updated on October 24, 2026 and TraceIron on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*