# K WORKOUT | KSYNC vs On Program

The clearest difference is rating: K WORKOUT | KSYNC at 5.0 against On Program's 4.5. K WORKOUT | KSYNC also leads on in-app purchases (none vs 2) and ads (none vs shown). On Program's advantage is update cadence (every 3 days vs every 8 days) and ratings volume (8 vs 2). On price, device support and iOS requirement there is nothing between them.

Both are free to download. On Program sells 2 in-app purchases, starting at $14.99 per month. K WORKOUT | KSYNC asks for nothing beyond the download.

K WORKOUT | KSYNC holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 8 respectively.

K WORKOUT | KSYNC ships an update every 8 days, On Program every 3 days. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | K WORKOUT | KSYNC | On Program |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/k-workout-ksync/id6752256796/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/on-program/id6795762932/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 50 MB | 49 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Kintsugi LLC](https://appshunter.io/developer/1838476918) | [ADAM CHRISTOPHER BUZASSY](https://appshunter.io/developer/6795762934) |

## What reviewers say

### K WORKOUT | KSYNC

[App page](https://appshunter.io/ios/app/k-workout-ksync/id6752256796)

Discover and save personalized fitness routines, track your progress, and access a vast library of exercises. Coaches can share workouts, manage clients, and monitor engagement. Includes nutrition scanning and music stations to enhance your fitness journey.

**Highlights:** Personalized workout builder, 3,000+ exercise library, Workout sharing via link/QR, Client management for coaches, Nutrition scanning and recommendations, 40,000+ music stations, Progress tracking and analytics

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

**In-app purchases:** none


### On Program

[App page](https://appshunter.io/ios/app/on-program/id6795762932)

This AI-powered strength training app creates personalized workout plans that adapt weekly based on your performance and feedback. It simplifies logging, offers exercise guidance, and provides motivation through progress tracking and social features.

**Highlights:** Adaptive weekly workout plans, RPE-based weight adjustments, Quick exercise logging, Built-in rest timer and plate calculator, AI-powered exercise and nutrition advice, Customizable workout parameters, Social motivation and progress tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| On Program Pro Monthly | $14.99 | per month |
| On Program Pro Annual | $69.99 | per year |


## Frequently asked questions

### Is K WORKOUT | KSYNC free?

K WORKOUT | KSYNC is free to download, with no in-app purchases.

### Is On Program free?

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

### Which has better reviews, K WORKOUT | KSYNC or On Program?

K WORKOUT | KSYNC is rated higher. K WORKOUT | KSYNC averages 5.0 out of 5 from 2 ratings, while On Program averages 4.5 from 8 ratings.

### Do K WORKOUT | KSYNC or On Program have ads?

On Program shows ads; K WORKOUT | KSYNC does not.

### Which is updated more often, K WORKOUT | KSYNC or On Program?

K WORKOUT | KSYNC ships an update every 8 days, and On Program every 3 days. Most recently, K WORKOUT | KSYNC was updated on September 24, 2026 and On Program on October 2, 2026.

---

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