# GKI Tracker vs Keto Clock

The clearest difference is rating: Keto Clock at 5.0 against GKI Tracker's 3.6. Keto Clock also leads on review sentiment (100% vs 59%) and ads (none vs shown). GKI Tracker's advantage is in-app purchases (none vs 3) and ratings volume (14 vs 3). On price and device support there is nothing between them.

Both are free to download. Keto Clock sells 3 in-app purchases, starting at $8.99 per month. GKI Tracker asks for nothing beyond the download.

Keto Clock holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 14 and 3 respectively. Written reviews point the same way: 59% of GKI Tracker's written reviews are positive against 100% of Keto Clock's.

GKI Tracker ships an update every 5 months, Keto Clock every 2 weeks. The most recent releases landed on July 7, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | GKI Tracker | Keto Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (14 ratings)](https://appshunter.io/ios/app/gki-tracker/id1452955250/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/keto-clock-macro-tracker/id1544315993/reviews)** |
| Number of ratings | **14** | 3 |
| Positive reviews | 59.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | **Ad-supported** | Freemium |
| Size | 36 MB | 68 MB |
| Requires iOS | **13.1** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Matthias Mellouli](https://appshunter.io/developer/1704897147) | [Ketoclock Inc.](https://appshunter.io/developer/1720458976) |

## What reviewers say

### GKI Tracker

[App page](https://appshunter.io/ios/app/gki-tracker/id1452955250)

Track your glucose and ketone levels to calculate your GKI. Sync data with your health app, review your progress in history, and discover keto-friendly foods with a built-in grocery list manager.

**Highlights:** GKI calculation dashboard, Health app data sync, Historical progress tracking, Keto food discovery, Keto grocery list management

**Features:** macOS Compatibility

**In-app purchases:** none


### Keto Clock

[App page](https://appshunter.io/ios/app/keto-clock-macro-tracker/id1544315993)

This app helps you understand your body's metabolic state and optimize fat burn. It offers personalized predictions, macro tracking, and guidance for weight loss and improved metabolic health, whether you're following a keto diet or not.

**Highlights:** Personalized fat burn predictions, Metabolic state tracking, Fasting timer, Customizable macro targets, Barcode scanning for food tracking, Visual food guides and recipes, Advanced health metrics

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.99 | per month |
| Quarterly | $19.99 | per 3 months |
| Annual | $54.99 | per year |


## Frequently asked questions

### Is GKI Tracker free?

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

### Is Keto Clock free?

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

### Which has better reviews, GKI Tracker or Keto Clock?

Keto Clock is rated higher. GKI Tracker averages 3.6 out of 5 from 14 ratings, while Keto Clock averages 5.0 from 3 ratings.

### Do GKI Tracker or Keto Clock have ads?

GKI Tracker shows ads; Keto Clock does not.

### Which is updated more often, GKI Tracker or Keto Clock?

GKI Tracker ships an update every 5 months, and Keto Clock every 2 weeks. Most recently, GKI Tracker was updated on July 7, 2026 and Keto Clock on September 8, 2026.

---

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