syncsulin vs Glev
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
syncsulin
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Understanding your blood sugar means keeping track of many factors every day. syncsulin brings them all together in one place. Clear, organized, and automatic. syncsulin is your personal blood sugar and lifestyle diary for everyday life. The app connects to Apple Health and your CGM sensor and shows your blood sugar readings, insulin, meals, activity, and sleep in a single, tidy overview, so you spend less time hunting for your data and more time understanding it. YOUR DATA, SYNCED AUTOMATICALLY - Apple Health integration: With your permission, syncsulin reads blood sugar readings, steps, heart rate, and sleep automatically in the background, no need to open the app. - CGM connection: Link your Dexcom sensor. More sensors are on the way. EVERYTHING AT A GLANCE - Dashboard: Your home screen shows you instantly how your day is going, with a clean blood sugar graph that adapts to your data. - Feed: A chronological timeline of all your entries: blood sugar readings, meals, insulin doses, activity and sleep, all in context. FAST MANUAL LOGGING Not everything comes from a sensor. In just a few taps, you can log: - Blood sugar: enter a reading manually at any time - Insulin: dose, type, and units - Meals and snacks - Cycle data: because the menstrual cycle can influence blood sugar patterns too COMING SOON We are constantly improving syncsulin. Upcoming versions will bring trend views and pattern insights: see how everyday factors โ food, movement, sleep โ are reflected in your blood sugar data. SYNCSULIN PRO syncsulin is free to use. syncsulin Pro adds: - Live Activities: your blood sugar on the Lock Screen and in the Dynamic Island - Home Screen and Lock Screen widgets - The full nutrition breakdown for recognized meals, including micronutrients Subscription options: - syncsulin Pro Monthly โ 1 month, auto-renewing - syncsulin Pro Yearly โ 1 year, auto-renewing The price is shown in the app before you purchase. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your Apple Account is charged for renewal within 24 hours of the end of the period. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms & Conditions: https://www.syncsulin.com/terms Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.syncsulin.com/privacy-policy YOUR DATA BELONGS TO YOU Your health data is sensitive, and we treat it that way: encryption, strict access controls, and full transparency about what is stored. You can delete your account and your data at any time. See our Privacy Policy for details. LANGUAGES syncsulin is fully available in English, German, and Italian. IMPORTANT NOTE syncsulin is intended for personal information and lifestyle tracking only. The app does not provide medical advice, diagnosis, or treatment, and it is not a medical device. Never make health decisions based on the app alone. Always consult your doctor for medical questions. Questions or feedback? We are a small, dedicated team, and we would love to hear from you: support@syncsulin.com
Glev
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Your diabetes logbook that listens: log meals by voice, see your blood sugar live from your CGM, spot patterns โ all on one screen. Instead of fighting a clunky food-database form, you just talk: "A slice of margherita pizza and a small yogurt." Glev understands what you ate and logs carbs, protein, fat and fiber for you โ in under 10 seconds. Alongside it, your glucose curve updates live โ straight from LibreLinkUp, Nightscout or Apple Health. No app-switching, no manual copying. Your meal and your glucose response: one screen. WHY GLEV Living with Type 1 means thousands of tiny decisions every day. Counting carbs at dinner, remembering when you last ate, what you ate, and how it played out on your glucose curve. Most apps make you fight a form. Glev listens. VOICE-FIRST LOGGING - "I had a slice of margherita pizza" โ logged with full macros - "Ran 5k this morning" โ added to your timeline - Activities, stress, sleep quality โ all captured by voice, all searchable LIVE GLUCOSE TIMELINE See your glucose, meals and activity side-by-side. Spot patterns. Understand what works for your body. Share a report with your endocrinologist or diabetes educator in one tap. WORKS WITH YOUR LIFE - LibreLinkUp, Nightscout and Apple Health integration โ read glucose from your CGM - Offline-capable โ you don't lose data if you lose signal - Privacy by design โ encrypted, GDPR-compliant, servers in the EU, never sold WHAT GLEV IS NOT Glev does not replace your doctor and does not make therapy recommendations. It shows you patterns from your own history โ what you take from them, and what you discuss with your care team, is up to you. Glev is a documentation tool, not a medical device. BUILT BY A T1D, FOR T1DS Glev was started by a Type 1 diabetic who got tired of fighting his own logbook. Every design choice โ from voice-first input to the meal-logging flow โ comes from real life with insulin, CGMs, and the math we all do at every meal. PRICING - Free: core logbook with voice logging, manual entry and history - Glev Smart (โฌ8.99/month): log everything by voice, meal + insulin + glucose linked, live CGM curve - Glev Pro (โฌ18.99/month): everything in Smart plus Adapt Score, CGM-based insights and a direct line to the founder - Glev+ (โฌ28.99/month): everything in Pro plus doctor reports as PDF โ built for parents and caregivers of kids with T1D Subscriptions are billed through your App Store account and can be cancelled anytime. Free trial available. Important Notice: Glev is a documentation and lifestyle app and does not replace medical advice. Glev does not provide diagnoses or treatment recommendations and is not a medical device. Always consult your physician, diabetes educator, or qualified healthcare professional for any medical questions or treatment decisions. In case of emergency, contact emergency services immediately (112 in Germany, 911 in the US). Privacy Policy: https://glev.app/legal?tab=dse Terms of Use (EULA): https://glev.app/legal/eula
Screenshots
Verdict
The clearest difference is in-app purchases: syncsulin at none against Glev's 6. syncsulin also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). Glev's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.2). On price there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Glev sells 6 in-app purchases, starting at $8.99 per month. syncsulin asks for nothing beyond the download.
syncsulin ships an update every 9 days, Glev every 3 weeks. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.
| Parameter | syncsulin | Glev |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days โ better | Every 3 weeks |
| Ads | No โ better | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone, iPad, iPod โ better |
| Requires iOS | 17.2 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 37 MB | 10 MB |
| Age rating | 17+ | 12+ |
| Developer | syncsulin GmbH | Lucas Wahnon |
In-app purchases
syncsulin
No in-app purchases
Glev
- Glev Smart Monthly$8.991 Month
- Glev Pro Monthly$18.991 Month
- Glev+ Monthly$28.991 Month
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- Glev Smart Yearly$89.991 Year
- Glev Pro Yearly$189.991 Year
- Glev+ Yearly$289.991 Year









