# Wellion SiDiary vs T1dApp

The clearest difference is rating: T1dApp at 5.0 against Wellion SiDiary's 1.0. T1dApp also leads on update cadence (every 6 days vs every 27 months). Wellion SiDiary's advantage is iOS requirement (12.1 vs 15.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

T1dApp holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Wellion SiDiary ships an update every 27 months, T1dApp every 6 days. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Wellion SiDiary | T1dApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/wellion-sidiary/id1621535711/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/t1dapp/id6745495398/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 23 MB | 64 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Sinovo Ltd. & Co. KG](https://appshunter.io/developer/387195226) | [ROZ TECH LLC](https://appshunter.io/developer/1463497527) |

## What reviewers say

### Wellion SiDiary

[App page](https://appshunter.io/ios/app/wellion-sidiary/id1621535711)

Easily log diabetes-related data like blood glucose, blood pressure, and medications on your iPhone. Syncs with compatible devices and the PC version for comprehensive therapy analysis with your healthcare professional.

**Highlights:** Diabetes logbook (glucose, BP, meds), Bluetooth data transfer from compatible devices, Synchronization with PC version and online, Extensive statistics and trend analysis, Customizable data entry and display, Multiple unit and format options

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

**In-app purchases:** none


### T1dApp

[App page](https://appshunter.io/ios/app/t1dapp/id6745495398)

Track your blood sugar, meals, and weight with this easy-to-use health companion. Visualize trends with graphs and timelines, and set custom reminders to stay on track with your diabetes management.

**Highlights:** Blood sugar logging, Meal photo journal, Visual reports and trends, Weight tracking, Custom reminders, Dark and light mode

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

**In-app purchases:** none


## Frequently asked questions

### Is Wellion SiDiary free?

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

### Is T1dApp free?

T1dApp is free to download, with no in-app purchases.

### Which has better reviews, Wellion SiDiary or T1dApp?

T1dApp is rated higher. Wellion SiDiary averages 1.0 out of 5 from 1 ratings, while T1dApp averages 5.0 from 1 ratings.

### Do Wellion SiDiary or T1dApp have ads?

Neither Wellion SiDiary nor T1dApp shows ads.

### Which is updated more often, Wellion SiDiary or T1dApp?

Wellion SiDiary ships an update every 27 months, and T1dApp every 6 days. Most recently, Wellion SiDiary was updated on October 21, 2026 and T1dApp on October 12, 2026.

---

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