Wellion SiDiary vs T1dApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wellion SiDiary
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.
- 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
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With the Wellion SiDiary app for iPhone, you can easily keep your diabetes logbook (blood glucose levels, blood pressure, medications, carbohydrates, etc.) as you are already used to doing with our PC version. Together with your healthcare professional, you can then analyze the collected data to further improve your therapy. The Wellion SiDiary App for iPhone provides you with - easiest transfer of all data directly with your bluetooth enabled Wellion product (see list below) - fast synchronization of the data with Wellion SiDiary Online and your Wellion product. From there you can print the data independently of the operating system or further synchronize with your PC version - all data can also be entered in a scrollable input mask via the numeric keyboard - clear display of daily data - extensive statistics graphics (pie chart, history curve, standard day and detailed statistics) - Trend analysis (How has the treatment developed in the last X days/weeks/months?) - User-defined data types that you have created on the PC can also be used on the iPhone after synchronization with Wellion SiDiary Online - Blood glucose values can be entered in mg/dl or mmol/l - Weight input in kg or lbs - Carbohydrates in grams or any exchange unit (BE/KE, etc.) - Date format dd.mm or mm-dd - Time format 24h or am/pm - Unnecessary lines can be hidden The iPhone version can be used independently from the PC, but it can also complement the PC version, e.g. by reading out your Wellion product on the PC and only writing down additional data on the iPhone. Via a synchronization with Wellion SiDiary Online, all these data are then merged into a comprehensive diary. Since you decide when and if the data should be synchronized with Wellion SiDiary Online, you always have full control over the program and possible online costs during the data transfer. Compatible meters: Transmission directly via Bluetooth to the app - Wellion GALILEO GLU/KET BTE - Wellion LEONARDO GLU/KET BTE - Wellion NEWTON GDH-FAD BTE Transfer via PC version/cable to the app - Wellion CALLA Dialog - Wellion CALLA Light - Wellion CALLA Mini - Wellion GALILEO Compact - Wellion GALILEO GLU/CHOL - Wellion GALILEO GLU/KET - Wellion LUNA Duo - Wellion LUNA Trio
T1dApp
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.
- Blood sugar logging
- Meal photo journal
- Visual reports and trends
- Weight tracking
- Custom reminders
- Dark and light mode
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Manage your diabetes with confidence. Our app is your personal health companion—designed to help you track, understand, and manage your blood sugar levels, meals, and weight in one powerful and easy-to-use tool. Key Features: - Blood Sugar Logging Record your glucose readings throughout the day—wakeup, pre-meal, post-meal, and bedtime. See patterns and understand how your lifestyle affects your levels. - Meal Photo Journal Log what you eat with pictures and timestamps. Instantly see how your meals relate to your glucose changes. - Visual Reports Explore your health trends with easy-to-read graphs and filterable timelines (daily, weekly, monthly). Switch between blood sugar and weight views for a full picture of your progress. - Weight Tracking Monitor your weight changes and stay motivated on your wellness journey. - Custom Reminders Never miss a log! Set daily reminders for glucose checks, meals, or weight entries. - Dark & Light Mode Enjoy a clean, modern interface that adapts to your device’s theme. Why Users Love It: Whether you’re newly diagnosed or managing diabetes long-term, this app gives you the clarity and control you need. Our visual meal gallery, smart data tracking, and simple interface make staying healthy less stressful—and more empowering. Perfect for: - Type 1 and Type 2 diabetes management - Gestational diabetes tracking - Low-carb and keto meal monitoring - Parents managing a child's blood sugar - Anyone who wants to stay on top of their health Start your journey toward better glucose control and daily peace of mind. Download now and take the guesswork out of diabetes. - Medical Disclaimer This app is not a medical device. The information provided within the app is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before making any decisions about your health. Never disregard professional medical advice or delay seeking it because of something you have read in this app. Read our Privacy Policy: https://diabetes-app-iota.vercel.app/privacy and Terms of Use: https://diabetes-app-iota.vercel.app/terms
Screenshots
Verdict
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.
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.
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.
| Parameter | Wellion SiDiary | T1dApp |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 27 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.1 — better | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 64 MB |
| Age rating | 17+ | 17+ |
| Developer | Sinovo Ltd. & Co. KG | ROZ TECH LLC |
Customer experience
Wellion SiDiary
T1dApp
In-app purchases
Wellion SiDiary
No in-app purchases
T1dApp
No in-app purchases






