SmartLog (i vs Lea
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartLog (i
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.
- 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
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SmartLog: Smart blood glucose management app for iPhone SmartLog provides the following functions to help you manage your blood glucose. (1) Connection with CareSens blood glucose meters (Bluetooth) (2) Manual Input the blood glucose value (3) Providing various reports that show trend of blood glucose value (4) Recording information such as meal, exercise, insulin and memo (5) Sharing your blood glucose data with others by sending email or push service (6) Sync(or backup) your data with SmartLog Server using "Synchronization" menu in "More" tab Works with Apple Health: If you allow Apple Health access, your blood glucose data will be shared with Apple Health App. If you have any inconveniences or improvement requests in using SmartLog, please contact our Customer Center(smartlog.ios@i-sens.com).
Lea
This app syncs your weight and physical indicators with Apple HealthKit. It supports iPhone 6 and later devices, requiring user authorization for data integration.
- HealthKit integration
- Weight and physical indicator sync
- Supports iPhone 6 and later
- User authorization for data
- Body fat scale data management
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LeaOne is integrated with HealthKit to synchronize data such as your weight and physical indicators to the Apple HealthKit app. Before using this feature, you will be prompted to authorize and support iPhone 6 and later. The path of Apple Health is: LeaOne-> Devices-> Body Fat Scale-> setting-> nickname-> Health Kit
Screenshots
Verdict
The clearest difference is review sentiment: Lea at 23% against SmartLog (i's 13%. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SmartLog (i ships an update every 6 weeks, Lea every 5 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.
| Parameter | SmartLog (i | Lea |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (118 ratings) — better | — |
| Positive reviews | 13.3% of reviews | 22.7% of reviews — better |
| Number of ratings | 118 — better | — |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 168 MB |
| Age rating | 4+ | 4+ |
| Developer | i-SENS, Inc. | 云波 楼 |
Customer experience
SmartLog (i
Lea
Bugs and requests
SmartLog (i
Reported bugs
4 issues- App crashes after recent updates
- Readings disappearing or not syncing
- Compatibility issues with newer iOS versions
- Bluetooth connectivity problems
Requested features
5 requests- 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
Lea
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SmartLog (i
No in-app purchases
Lea
No in-app purchases
