# Orange Zones Workout Tracker vs Kasi

The clearest difference is in-app purchases: Kasi at none against Orange Zones Workout Tracker's 5. Kasi also leads on update cadence (every 4 days vs every 8 days) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Orange Zones Workout Tracker sells 5 in-app purchases, starting at $9.99 per month. Kasi asks for nothing beyond the download.

Orange Zones Workout Tracker ships an update every 8 days, Kasi every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Orange Zones Workout Tracker | Kasi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.1K ratings)](https://appshunter.io/ios/app/orange-zones-workout-tracker/id1482990976/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 60.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 84 MB | 9 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Bred Ventures Inc](https://appshunter.io/developer/897222461) | [Jon Booth](https://appshunter.io/developer/1700855073) |

## What reviewers say

### Orange Zones Workout Tracker

[App page](https://appshunter.io/ios/app/orange-zones-workout-tracker/id1482990976)

This app tracks your heart rate zones in real-time during workouts, providing insights into your effort and performance. It offers personalized zone calculations, point-based effort tracking, and detailed post-workout analysis. Integrates with Apple Watch, AirPods, and Bluetooth monitors.

**Highlights:** Real-time heart rate zone tracking, Personalized heart rate zone calculation, Effort-based point system, Apple Watch and iPhone integration, AirPods heart rate sensing support, Bluetooth heart rate monitor compatibility, Detailed workout history and analysis

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $19.99 | per year |
| Friends & Family Yearly | $39.99 | per year |
| Upgrade to annual plan | $59.99 | per year |
| Pro Yearly | $89.99 | per year |

**What reviewers like**

- 🚀 Seamless integration with Apple Watch
- 👍 Accurate heart rate tracking
- 🧡 Matches OTF color zones
- 💰 Cost-effective alternative to OTF monitors
- 🔋 Works well without additional hardware

**What reviewers complain about**

- 💰 Subscription model too expensive
- 🐛 Connectivity issues with Apple Watch
- 🔍 Limited data/history tracking
- 🧭 Lacks live data on phone app
- 🔢 Inaccurate calorie/zone calculations

**Reported bugs**

- Frequent app crashes
- Inconsistent heart rate detection
- Sync issues between watch and phone

**Requested features**

- Weekly/monthly workout tracking
- Customizable display options
- Ability to pause workouts
- Integration with Apple Health
- Social/leaderboard features


### Kasi

[App page](https://appshunter.io/ios/app/kasi/id6463846550)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Orange Zones Workout Tracker free?

Orange Zones Workout Tracker is free to download, with in-app purchases available.

### Is Kasi free?

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

### Do Orange Zones Workout Tracker or Kasi have ads?

Neither Orange Zones Workout Tracker nor Kasi shows ads.

### Which is updated more often, Orange Zones Workout Tracker or Kasi?

Orange Zones Workout Tracker ships an update every 8 days, and Kasi every 4 days. Most recently, Orange Zones Workout Tracker was updated on November 3, 2026 and Kasi on October 30, 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.*