# SmartLog (i vs GKI Tracker

The clearest difference is review sentiment: GKI Tracker at 59% against SmartLog (i's 14%. GKI Tracker also leads on rating (3.6 vs 1.6). SmartLog (i's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GKI Tracker holds the better App Store score, 3.6 against 1.6. That said, the two scores are not equally well evidenced: SmartLog (i has 118 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 14% of SmartLog (i's written reviews are positive against 59% of GKI Tracker's.

SmartLog (i ships an update every 6 weeks, GKI Tracker every 5 months. The most recent releases landed on September 13, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | SmartLog (i | GKI Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (118 ratings)](https://appshunter.io/ios/app/smartlog-i-sens/id737519554/reviews) | **[3.6 (14 ratings)](https://appshunter.io/ios/app/gki-tracker/id1452955250/reviews)** |
| Number of ratings | **118** | 14 |
| Positive reviews | 13.6% of reviews | **59.1% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | **Free** | Ad-supported |
| Size | 38 MB | 36 MB |
| Requires iOS | 13.2 | **13.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [i-SENS, Inc.](https://appshunter.io/developer/405215627) | [Matthias Mellouli](https://appshunter.io/developer/1704897147) |

## What reviewers say

### SmartLog (i

[App page](https://appshunter.io/ios/app/smartlog-i-sens/id737519554)

This app helps users manage their blood glucose levels by connecting to compatible meters or allowing manual input. It generates reports, records related health data, and enables data sharing. Users can also sync their information with a cloud server and integrate with Apple Health.

**Highlights:** Connects to CareSens meters via Bluetooth, Manual blood glucose input, Blood glucose trend reports, Records meals, exercise, and insulin, Share data via email or push, Syncs data with SmartLog Server, Integrates with Apple Health

**In-app purchases:** none

**What reviewers like**

- ⭐ Works fine
- 📊 Helpful graphs and statistics
- 💻 Bluetooth connectivity
- 🗓️ Tracks readings over time

**What reviewers complain about**

- 🤔 Confusing user interface
- 🔍 Difficult to read small text
- 🔗 Issues with Bluetooth pairing
- 🚫 Unable to delete false readings
- 🔒 Privacy concerns with data sharing

**Reported bugs**

- App crashes after recent updates
- Readings disappearing or not syncing
- Compatibility issues with newer iOS versions
- Bluetooth connectivity problems

**Requested features**

- Add dark mode option
- Allow deletion of individual readings
- Improve font size and readability
- Enhance data export and sharing options
- Integrate with more glucose meter models


### 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


## Frequently asked questions

### Is SmartLog (i free?

SmartLog (i is free to download, with no in-app purchases.

### Is GKI Tracker free?

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

### Which has better reviews, SmartLog (i or GKI Tracker?

GKI Tracker is rated higher. SmartLog (i averages 1.6 out of 5 from 118 ratings, while GKI Tracker averages 3.6 from 14 ratings.

### Do SmartLog (i or GKI Tracker have ads?

GKI Tracker shows ads; SmartLog (i does not.

### Which is updated more often, SmartLog (i or GKI Tracker?

SmartLog (i ships an update every 6 weeks, and GKI Tracker every 5 months. Most recently, SmartLog (i was updated on September 13, 2026 and GKI Tracker on July 7, 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.*