Lingo by Abbott vs Kalos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lingo by Abbott
This system tracks your glucose 24/7 to provide real-time insights into your body's response to food and activities. It helps you understand your metabolism, learn new eating patterns, and track progress towards healthier habits.
- 24/7 glucose tracking
- Personalized nutrition insights
- Metabolism understanding
- Habit change support
- Glucose graph visualization
- Lingo Count daily metric
- Food & activity logging
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What, when, and how you eat has a big impact on your body. It’s all connected. And it’s influenced by your personal glucose patterns. See for yourself in real time, with Lingo — a science-backed system designed to power healthy habit change. Glucose is a powerful signal reflecting your body’s unique response to food. The Lingo Biosensor and App tracks your glucose 24/7, translating the data into insights you can use to optimize your nutrition, build new habits, and improve your metabolic health. Know your body in a new way. Rooted in decades of research and made by Abbott — a global leader in continuous glucose monitoring (CGM) technology‡ — the Lingo Biosensor streams glucose data directly to your phone, so you can see the impact of what, when, and how you eat. The Lingo app offers personal insights about which foods work for your body. Armed with data and insights, you can make diet and lifestyle choices that support your health goals. Fad diets don’t work. Science does. - UNDERSTAND YOUR METABOLISM: See your personal glucose response to different foods and activities. - LEARN NEW WAYS OF EATING: Discover which foods work for you and what to prioritize. Every person is different. Insights from Lingo help you know your body in a new way. - SEE YOUR PROGRESS: See the impact of your new habits add up over time. Lingo provides daily, weekly, and monthly snapshots to keep you on track. A closer look at the features and benefits: - Glucose graph — See your glucose graph update throughout the day based on continuous readings from your biosensor. - Lingo Count — This is your glucose exposure translated into one dynamic daily number. It’s simple. It’s actionable. It’s your target to stay within each day. - Food & activity logging — Log meals in seconds by taking or uploading a photo, or search from a large food database. Every meal you log now includes a nutrition breakdown — like protein, carbs, and fat — alongside your glucose data. Sync with Apple Health® to auto-log activity and see your glucose data†† in Apple Health. - Personal insights — Weekly progress reports come with personal recommendations based on the meals and activity you log and how they impact your glucose. - Put your habits to the test — Test new habits with science-backed challenges. Find what fits your lifestyle and start to build your healthiest routines. - Export glucose data — Download your glucose data to easily share it with your healthcare provider. ‡ Data on file, Abbott Diabetes Care, Inc. Based on the number of users worldwide for the FreeStyle Libre portfolio compared to the number of users for other leading personal use sensor-based glucose monitoring systems. †† Lingo does not measure or send blood glucose data to any health apps. Lingo sends glucose data measured via interstitial fluid to health apps. The Lingo Glucose System is for users 18 years and older not on insulin. It is NOT intended for diagnosis of diseases, including diabetes. Individual responses may vary. © 2026 Abbott. All rights reserved. The biosensor shape and appearance, Lingo, and related brand marks are marks and/or designs of the Abbott group of companies in various territories. Other marks are the property of their respective owners. The product images are representative only.
Kalos
This service uses medical-grade data to help you test fitness routines on your body. It offers personalized exercise plans, nutrition tracking via photos, and integration with fitness wearables. Communicate directly with your trainer 24/7 for a comprehensive fitness experience.
- DEXA-based personal training
- Curated exercise routines
- Nutrition tracking (photo upload)
- Fitness wearable integration
- 24/7 trainer messaging
- Workout and strength history tracking
- Apple Health sync
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Kalos is the world’s first DEXA based personal training service. Our goal is to provide the highest quality, medical grade data platform to allow our members to A/B test fitness routines on your body. Our platform enables our members to: - Follow a curated exercise routine, hand designed by your trainer - Track nutrition, either explicitly or through simple photo upload - Integrate all fitness wearables onto one platform to better inform your trainer - Directly message your trainer 24/7, including voice notes or video messages - Track your workouts and strength history over time - Sync with Apple Health app to update your metrics instantly Join us today!
Screenshots
Verdict
The clearest difference is ratings volume: Lingo by Abbott at 8.1K against Kalos's 13. Lingo by Abbott also leads on chart position (#155 vs unranked). Kalos's advantage is review sentiment (67% vs 44%) and update cadence (every 3 weeks vs every 2 months). On price, rating, 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.
On the App Store both sit at effectively the same score — 4.5 for Lingo by Abbott against 4.5 for Kalos. That said, the two scores are not equally well evidenced: Lingo by Abbott has 8.1K ratings behind it against 13, so its average is the more settled of the two. Written reviews are what separate them: 44% of Lingo by Abbott's written reviews are positive against 67% of Kalos's.
Lingo by Abbott ships an update every 2 months, Kalos every 3 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.
| Parameter | Lingo by Abbott | Kalos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8.1K ratings) | 4.5 (13 ratings) — better |
| Positive reviews | 44.1% of reviews | 66.7% of reviews — better |
| Number of ratings | 8.1K — better | 13 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #155 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 194 MB | 427 MB |
| Age rating | 17+ | 4+ |
| Developer | Abbott | Kalos Health, Inc |
Customer experience
Lingo by Abbott
Kalos
Bugs and requests
Lingo by Abbott
Reported bugs
4 issues- Sensor connectivity issues
- Inaccurate glucose readings
- Data sync problems and data loss
- Inconsistent app performance after updates
Requested features
5 requests- Apple Health integration
- Apple Watch app and complications
- More detailed data analysis and visualization
- Customizable glucose level alerts
- Improved food logging and tracking
Kalos
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lingo by Abbott
No in-app purchases
Kalos
No in-app purchases









