Lark Health vs SabStab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lark Health
This app offers personalized health programs and 24/7 digital coaching to help you achieve your individual health goals. It provides tools for habit building, chronic condition management, and tracking various health metrics, often at no cost through eligible insurance.
- Personalized health programs
- 24/7 digital health coaching
- Food and activity tracking
- Weight management tools
- Chronic condition management
- Sleep and stress improvement
- Community support
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Health looks different for everyone, which is why Lark offers unique programs designed to target your individual health goals. Whether you want to build healthy habits to lose weight, get help preventing or managing diabetes, lower your blood pressure, or just feel your best, Lark has a program for you. Every Lark program includes 24/7 digital health coaching from your smartphone or tablet, a smart scale, the Lark health app with food and activity trackers, helpful tips and resources, and other program-specific devices. The best part? If you qualify, you can join Lark at no extra cost to you with eligible insurance! The Lark coach can help you: - Create healthy eating habits - Move more and feel stronger - Reach and maintain a healthy weight - Learn how to manage common GLP-1 medication side effects - Plan meals and create grocery lists - Build healthy habits to prevent and manage chronic conditions like diabetes and hypertension - Improve your sleep and manage stress - Connect with other Lark members just like you! FOOD COACHING Food coaching with Lark’s Coach+ technology provides real-time, tailored healthy eating advice that’s generated based on your specific questions and responses. Whether you want feedback on a recent meal, help planning an upcoming meal, or a personalized grocery list, your digital coach is ready to help. TRACK ALL OF YOUR HEALTH DATA Display everything in one place: Weight readings, daily activity levels, sleep, stress, meals and key ingredients, blood sugar, blood pressure, and more. See everything in one dashboard to understand how you’re progressing toward each of your health goals. 24/7 SUPPORT Message your digital coach anytime, anywhere for helpful tips and daily education. Guided chats help you achieve your goals in just 5 minutes a day! Most Lark programs also include live coaching opportunities with our certified coaches and the ability to join a community of other Lark members. COMPLIMENTARY DEVICES When you enroll, you’ll receive a smart scale and other program-specific devices at no extra cost to you! Your devices connect and send measurements right to the Lark app, making it easy to track your progress as you go. ENROLL THROUGH YOUR INSURANCE BENEFITS Answer a few simple questions to see if you qualify for Lark at no extra cost to you. HEAR FROM LARK MEMBERS JUST LIKE YOU! “65 lbs down and 100 times happier. Keep going even when you think it's not working because small losses add up in the end.” - Charles “I joined Lark a year ago and I reached my weight loss goal, it feels amazing! I have more energy and feel better than I have in years. Thank you, Lark, for helping me.” - Lisa “This morning I was getting dressed and pulled on a pair of jeans that are a size too small that I keep just in case, and they FIT! When I went to the store later, I treated myself to a new sweater a size down, too. Small wins sometimes mean more than the scale.” - Carol Disclaimer: The Lark app is designed for personal health tracking for informational purposes only. It's not a medical device and isn't intended to diagnose, treat, or cure any disease. The content provided on the Lark app is not medical advice or a substitute for professional medical guidance. Consult a qualified healthcare provider with any medical questions or before making health decisions. Do not disregard or delay seeking professional medical advice based on information provided in the Lark app.
SabStab
This app applies biomechanics to strength training with a 3D muscle model and animated charts. It offers personalized routines based on your goals, equipment, and logs, with detailed exercise guides and progress tracking.
- 3D muscle figure visualization
- Personalized workout routines
- Animated progress charts
- Detailed exercise guides
- Offline workout logging
- Customizable appearance settings
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Biomechanics applied to every repetition. Your workouts just entered another dimension. SabStab polishes its neon style and futuristic energy for strength training with a 3D muscle figure, maps that come alive with light and animated charts that put your logs in the spotlight. Personalized routines and your workout logs, right at your fingertips. FRESH LOOK. REAL FOCUS. Deep black, neon green and smooth transitions. Explore the refreshed experience, from illuminated buttons to charts that rise with their numbers. Make it yours with Night, Day or System appearance, plus your choice of sound and motion settings. 3D MUSCLES. FULLY LIT. Spin the anatomical figure and explore your session’s illuminated muscle maps. View muscle groups and their parts to see which areas you are training. The light is a visual guide to the muscles involved, not a measurement of activation. YOUR PLAN. ZERO FUSS. Hypertrophy, strength, strength and hypertrophy, or fat loss. Your plan considers your goal, experience, available days, equipment and logs. Train at the gym, with dumbbells and bands, or with calisthenics, even at home without equipment. Review your weekly training coverage, explore compatible alternatives and track progression across comparable sessions. Optional measurements and preferences help inform suggestions. LOG IT. MAKE IT COUNT. Log load, reps and effort. Reuse your last entry, correct a log and reorder your exercises. Consult 98 guides covering equipment, setup, movement and the muscles involved. Tap session images to enlarge them, or press and hold images in Routine and alternatives. Find a replacement and manage rest between sets. Review load suggestions when enough data is available, plus complementary cardio tips for your goal and session. WATCH YOUR PROGRESS POP. Weekly volume charts, week-to-week comparisons, personal bests and history. Bars and numbers come to life to make your logs easy to read at a glance. Your data shows how your training changes; it does not measure muscle growth. EARN IT. SHARE THE MOMENT. Review completed sessions, discover recent achievements and share the same card you earned with your crew. Open the built-in guide whenever you want a refresher on the controls. Free, with no ads, no subscription and no account required. Your profile, routines and logs work offline. Available in English and Spanish. SabStab provides general training guidance. It is not a medical device and does not diagnose, treat, cure or prevent any medical condition. Consult a healthcare professional for medical advice, diagnosis or treatment; if you have pain or an injury, review the exercise before training.
Screenshots
Verdict
The clearest difference is rating: SabStab at 5.0 against Lark Health's 4.3. SabStab also leads on review sentiment (100% vs 61%) and update cadence (every 6 days vs every 2 weeks). Lark Health's advantage is ratings volume (8.1K vs 2). On price, ads, in-app purchases and monetization model 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.
SabStab holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Lark Health has 8.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 61% of Lark Health's written reviews are positive against 100% of SabStab's.
Lark Health ships an update every 2 weeks, SabStab every 6 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Lark Health | SabStab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (8.1K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 60.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 8.1K — better | 2 |
| Update frequency | Every 2 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 58 MB | 115 MB |
| Age rating | 17+ | 4+ |
| Developer | Lark Technologies, Inc | Emmanuel Alvarado |
Customer experience
Lark Health
SabStab
Bugs and requests
Lark Health
Reported bugs
4 issues- App losing user data and progress
- Incorrect sleep and activity tracking
- Inconsistent time zone handling
- Unreliable connectivity with connected devices
Requested features
5 requests- Ability to manually edit or correct food entries
- Integration with more fitness trackers and health apps
- More personalized coaching and recommendations
- Option to provide custom responses instead of pre-set choices
- Water intake tracking
SabStab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lark Health
No in-app purchases
SabStab
No in-app purchases









