# Reboot66 vs retireFIT

The clearest difference is review sentiment: retireFIT at 100% against Reboot66's 0%. retireFIT also leads on rating (5.0 vs 1.5) and ratings volume (6 vs 2). Reboot66's advantage is iOS requirement (13.0 vs 15.1). 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.

retireFIT holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews point the same way: 0% of Reboot66's written reviews are positive against 100% of retireFIT's.

Reboot66 ships an update weekly, retireFIT fortnightly. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Reboot66 | retireFIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/reboot66/id6445857262/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/retirefit/id6737696965/reviews)** |
| Number of ratings | 2 | **6** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | Free |
| Size | 41 MB | 50 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [O2S1, Inc.](https://appshunter.io/developer/1674301312) | [RetireFitness LLC](https://appshunter.io/developer/1777445519) |

## What reviewers say

### Reboot66

[App page](https://appshunter.io/ios/app/reboot66/id6445857262)

Easily track your daily fitness activities, including progress photos, weight, and body measurements. Stay motivated by competing with friends and sharing your achievements. This app helps transform your fitness journey with its user-friendly interface.

**Highlights:** Daily activity tracking, Progress picture uploads, Weight and body measurements, Friend competition, Motivation reminders, Result sharing

**In-app purchases:** none


### retireFIT

[App page](https://appshunter.io/ios/app/retirefit/id6737696965)

This app guides users on their wellness journey for retirement, offering a functional wellness score based on movement tests. It helps forecast future well-being and provides tools to track activity and connect with others for motivation.

**Highlights:** Best Life Score (BLS) based on movement tests, Forecast Graph for long-term wellness projection, Activity tracking for points and monthly goals, Group feature for social motivation and leaderboards, Progress reassessment every six months

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

**In-app purchases:** none


## Frequently asked questions

### Is Reboot66 free?

Reboot66 is free to download, with no in-app purchases.

### Is retireFIT free?

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

### Which has better reviews, Reboot66 or retireFIT?

retireFIT is rated higher. Reboot66 averages 1.5 out of 5 from 2 ratings, while retireFIT averages 5.0 from 6 ratings.

### Do Reboot66 or retireFIT have ads?

Neither Reboot66 nor retireFIT shows ads.

### Which is updated more often, Reboot66 or retireFIT?

Reboot66 ships an update weekly, and retireFIT fortnightly. Most recently, Reboot66 was updated on June 1, 2026 and retireFIT on September 9, 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.*