# SiDiary vs Carb Unit Diary for Diabetics

The clearest difference is in-app purchases: SiDiary at none against Carb Unit Diary for Diabetics's 8. SiDiary also leads on rating (4.4 vs 4.2) and iOS requirement (11.0 vs 18.5). Carb Unit Diary for Diabetics's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (24 vs 7). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Carb Unit Diary for Diabetics sells 8 in-app purchases, starting at $2.49 per 7 days. SiDiary asks for nothing beyond the download.

SiDiary holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 7 and 24 respectively. Written reviews point the same way: 56% of SiDiary's written reviews are positive against 55% of Carb Unit Diary for Diabetics's.

SiDiary ships an update every 4 months, Carb Unit Diary for Diabetics every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SiDiary | Carb Unit Diary for Diabetics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/sidiary/id389582724/reviews)** | [4.2 (24 ratings)](https://appshunter.io/ios/app/carb-unit-diary-for-diabetics/id1460366245/reviews) |
| Number of ratings | 7 | **24** |
| Positive reviews | **56.3% of reviews** | 55.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 34 MB | 350 MB |
| Requires iOS | **11.0** | 18.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sinovo Ltd. & Co. KG](https://appshunter.io/developer/387195226) | [Jommi UG (haftungsbeschrankt)](https://appshunter.io/developer/338518785) |

## What reviewers say

### SiDiary

[App page](https://appshunter.io/ios/app/sidiary/id389582724)

This app helps manage diabetes by logging blood glucose, blood pressure, medication, and carbohydrate intake. It offers data entry, statistical graphics, trend analysis, and synchronization with a desktop version.

**Highlights:** Blood glucose logging, Blood pressure tracking, Medication and carbohydrate entry, Statistical graphics and trend analysis, Data synchronization with desktop, Support for various glucose meters, Customizable data types and units

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

**In-app purchases:** none


### Carb Unit Diary for Diabetics

[App page](https://appshunter.io/ios/app/carb-unit-diary-for-diabetics/id1460366245)

This app helps manage diabetes by tracking carbohydrate units in meals and physical activities. It offers a large database of food items and exercises, with integrations for Apple Watch and Apple Health. The goal is to simplify nutrition management for better blood sugar control.

**Highlights:** Carb unit tracking for diabetics, Food and meal logging, Physical activity documentation, Step counter with calorie calculation, Apple Watch & Apple Health integration, Voice Over support

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week PRO | $2.49 | per 7 days |
| 1 Month Access | $6.49 | per month |
| Quarterly Offer | $10.99 | per 3 months |
| 3 Months Full Access | $12.95 | per 3 months |
| Yearly Offer | $21.99 | per year |
| 12 Months Full Access | $25.00 | per year |
| PRO Access | $25.00 | per year |
| Lifetime PRO Access | $49.99 | one-time |


## Frequently asked questions

### Is SiDiary free?

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

### Is Carb Unit Diary for Diabetics free?

Carb Unit Diary for Diabetics is free to download, with in-app purchases available.

### Which has better reviews, SiDiary or Carb Unit Diary for Diabetics?

SiDiary is rated higher. SiDiary averages 4.4 out of 5 from 7 ratings, while Carb Unit Diary for Diabetics averages 4.2 from 24 ratings.

### Do SiDiary or Carb Unit Diary for Diabetics have ads?

Neither SiDiary nor Carb Unit Diary for Diabetics shows ads.

### Which is updated more often, SiDiary or Carb Unit Diary for Diabetics?

SiDiary ships an update every 4 months, and Carb Unit Diary for Diabetics every 3 weeks. Most recently, SiDiary was updated on November 1, 2026 and Carb Unit Diary for Diabetics on November 3, 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.*