# SmartLog (i vs Keto Logger

The clearest difference is review sentiment: Keto Logger at 91% against SmartLog (i's 13%. Keto Logger also leads on rating (4.8 vs 1.6) and iOS requirement (9.3 vs 13.2). SmartLog (i's advantage is price (Free vs $2.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

SmartLog (i is free to download; Keto Logger costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Keto Logger holds the better App Store score, 4.8 against 1.6. Both are backed by a comparable volume of ratings — 118 and 298 respectively. Written reviews point the same way: 13% of SmartLog (i's written reviews are positive against 91% of Keto Logger's.

SmartLog (i ships an update every 6 weeks, Keto Logger every 2 months. The most recent releases landed on October 22, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | SmartLog (i | Keto Logger |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [1.6 (118 ratings)](https://appshunter.io/ios/app/smartlog-i-sens/id737519554/reviews) | **[4.8 (298 ratings)](https://appshunter.io/ios/app/keto-logger/id1172189328/reviews)** |
| Number of ratings | 118 | **298** |
| Positive reviews | 13.3% of reviews | **91.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 38 MB | 20 MB |
| Requires iOS | 13.2 | **9.3** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [i-SENS, Inc.](https://appshunter.io/developer/405215627) | [Uncomplicated Solutions Inc.](https://appshunter.io/developer/414801230) |

## 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


### Keto Logger

[App page](https://appshunter.io/ios/app/keto-logger/id1172189328)

Easily log and visualize your ketone and glucose readings. Supports multiple units, CSV import from popular meters, and data export. Track your progress with interactive graphs and history views.

**Highlights:** Log ketone and glucose readings, Support for mg/dL and mmol/L units, CSV import from KetoMojo, Line graph visualization, History view with GKI calculation, CSV data export, Database backup and restore

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 📈 Tracks glucose and ketones
- 📊 Automatic graphs (Day/Week/Month)
- 📤 Data export functionality
- 💡 Calculates Glucose-Ketone Index (GKI)

**What reviewers complain about**

- ❌ Cannot edit entries
- 🔄 No cloud sync / device sync
- 🍎 No Apple Health integration
- 🧹 Messy and clunky UI (mentioned by one user)
- 🚫 No swipe left delete

**Reported bugs**

- Cannot edit entries once saved
- Data corruption (resolved by developer)
- Import issues (resolved by developer)
- Does not sync across devices

**Requested features**

- Ability to add notes to readings (e.g., after fast, after meal)
- Track weight
- Sync with Apple Health
- Sync with KetoMojo app
- Add readings for hematocrit and hemoglobin


## Frequently asked questions

### Is SmartLog (i free?

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

### Is Keto Logger free?

Keto Logger costs $2.99, with no in-app purchases.

### Which has better reviews, SmartLog (i or Keto Logger?

Keto Logger is rated higher. SmartLog (i averages 1.6 out of 5 from 118 ratings, while Keto Logger averages 4.8 from 298 ratings.

### Do SmartLog (i or Keto Logger have ads?

Neither SmartLog (i nor Keto Logger shows ads.

### Which is updated more often, SmartLog (i or Keto Logger?

SmartLog (i ships an update every 6 weeks, and Keto Logger every 2 months. Most recently, SmartLog (i was updated on October 22, 2026 and Keto Logger on October 23, 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.*