# GymSync vs Kahunas

The clearest difference is rating: GymSync at 5.0 against Kahunas's 3.3. GymSync also leads on in-app purchases (none vs 1) and update cadence (weekly vs monthly). Kahunas's advantage is ratings volume (73 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Kahunas sells 1 in-app purchase, starting at $95.99 per month. GymSync asks for nothing beyond the download.

GymSync holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Kahunas has 73 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 29% of GymSync's written reviews are positive against 18% of Kahunas's.

GymSync ships an update weekly, Kahunas monthly. The most recent releases landed on September 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | GymSync | Kahunas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gymsync/id561653066/reviews)** | [3.3 (73 ratings)](https://appshunter.io/ios/app/kahunas/id1638377758/reviews) |
| Number of ratings | 1 | **73** |
| Positive reviews | **29.4% of reviews** | 18.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 51 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SD17 Limited](https://appshunter.io/developer/1718054285) | [Mark Covey-Fox](https://appshunter.io/developer/1594397925) |

## What reviewers say

### GymSync

[App page](https://appshunter.io/ios/app/gymsync/id561653066)

Easily book and manage fitness classes at your gym. View schedules, reserve spots, and receive timely reminders. Get instant notifications for cancellations and reserve list openings.

**Highlights:** View class timetables, Book and cancel classes, Join reserve lists, Class reminders, Instant notifications

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

**In-app purchases:** none


### Kahunas

[App page](https://appshunter.io/ios/app/kahunas/id1638377758)

This app connects clients with their online coaches. Coaches can manage clients, update plans, and communicate directly. Clients can log workouts, track nutrition, and message their coach.

**Highlights:** Client management, Workout and diet plan updates, Check-in tracking, Direct messaging, Workout logging, Nutrition plan viewing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $95.99 | per month |

**What reviewers like**

- 👍 User-friendly interface for clients
- 🎯 All-in-one coaching platform (workouts, nutrition, messaging)
- 📊 Customizable workout programming
- 💬 Easy coach-client communication
- 🔄 Regular updates and improvements

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🐛 Persistent bugs despite updates
- ❌ Poor Apple Health integration (doesn't sync weight/workouts)
- ❌ Unreliable data persistence (lost workout data)
- ❌ Inaccurate nutrition database

**Reported bugs**

- App crashes when locking phone
- Crashes during workout logging
- Login screen freezes
- Barcode scanner launches blank screen
- Rest timer displays incorrect duration

**Requested features**

- Apple Watch integration and complications
- MyFitnessPal integration
- Save/reuse meal feature
- Auto-save functionality for workouts
- Weight tracking widget


## Frequently asked questions

### Is GymSync free?

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

### Is Kahunas free?

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

### Which has better reviews, GymSync or Kahunas?

GymSync is rated higher. GymSync averages 5.0 out of 5 from 1 ratings, while Kahunas averages 3.3 from 73 ratings.

### Do GymSync or Kahunas have ads?

Neither GymSync nor Kahunas shows ads.

### Which is updated more often, GymSync or Kahunas?

GymSync ships an update weekly, and Kahunas monthly. Most recently, GymSync was updated on September 11, 2026 and Kahunas on September 22, 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.*