# Allurion vs 54D On

Allurion and 54D On both sit at 4.9 stars, but that hides the real split: 83% of 54D On's written reviews are positive against 65% of Allurion's. Allurion's advantage is update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Allurion against 5.0 for 54D On. Both are backed by a comparable volume of ratings — 776 and 1.8K respectively. Written reviews are what separate them: 65% of Allurion's written reviews are positive against 83% of 54D On's.

Allurion ships an update every 3 weeks, 54D On every 2 months. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Allurion | 54D On |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (776 ratings)](https://appshunter.io/ios/app/allurion/id1114672166/reviews) | **[5.0 (1.8K ratings)](https://appshunter.io/ios/app/54d-on/id1520445334/reviews)** |
| Number of ratings | 776 | **1.8K** |
| Positive reviews | 64.6% of reviews | **83.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 97 MB | 134 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 17+ |
| Developer | [Allurion Technologies,inc.](https://appshunter.io/developer/1114672165) | [Coral GPY Gables LLC](https://appshunter.io/developer/1450738644) |

## 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


### 54D On

[App page](https://appshunter.io/ios/app/54d-on/id1520445334)

This program offers an online human transformation experience designed to help users break mental barriers and achieve significant physical and emotional results in just 54 days. It provides structured training, nutrition guidance, recovery support, and community interaction.

**Highlights:** High Intensity Online Training, Nutrition Management, Recovery Support, Real-time Coach Messaging, Workout Tracking & Scheduling, Progress Monitoring, Wearable Device Integration

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent training programs
- 🙌 Motivational coaching and support
- 🌎 Accessible from anywhere
- 💪 Effective for physical and mental transformation
- 🕰️ Flexible schedule and convenience

**What reviewers complain about**

- 🚨 Poor customer service and refund policies
- ⏰ Strict cancellation policies

**Reported bugs**

- App issues with IP changes and travel
- Occasional login and connectivity problems

**Requested features**

- More nutrition guidance and education
- Improved music integration


## Frequently asked questions

### Is Allurion free?

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

### Is 54D On free?

54D On is free to download, with no in-app purchases.

### Which has better reviews, Allurion or 54D On?

54D On is rated higher. Allurion averages 4.9 out of 5 from 776 ratings, while 54D On averages 5.0 from 1.8K ratings.

### Do Allurion or 54D On have ads?

Neither Allurion nor 54D On shows ads.

### Which is updated more often, Allurion or 54D On?

Allurion ships an update every 3 weeks, and 54D On every 2 months. Most recently, Allurion was updated on October 16, 2026 and 54D On on October 15, 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.*