Calorie Ai vs Doctwin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calorie Ai
Effortlessly track your nutrition and fitness goals with an AI-powered calorie counter. Log meals instantly with a photo, monitor macro breakdowns, and set personalized daily targets for weight loss, muscle gain, or balanced eating. Plan meals, save custom recipes, and track progress with visual charts.
- AI meal logging via photo
- Calorie and macro breakdown
- Personalized macro goals
- Custom meal planning
- Progress tracking charts
- Save custom recipes
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# Stay younger, longer. Your Apple Watch already tracks your body. Now turn that data into a clearer picture of how you’re aging—and what you can do to help stay younger for longer. The app connects with **Apple Health and Apple Watch** to bring together your sleep, nutrition, workouts, heart trends, body composition, cycle, recovery and more. At the center is your **Health Age**: an estimate based on your calculated **Aging Speed** and more than **50 health metrics**. Your Aging Speed model is informed by insights from **50+ longevity and health research papers**, helping translate everyday health data into one simple question: **Are your current habits helping you stay younger—or aging you faster?** ## Your Health Age See an estimated age for your current health and track how it changes over time. Your Health Age is influenced by areas including: * Sleep and recovery * Nutrition * Strength and fitness * Heart health * Activity * Body composition * Metabolic health * Lifestyle trends Instead of obsessing over individual scores, see how everything works together. ## Your Apple Watch, Reimagined Your Apple Watch collects an incredible amount of information about your body. The app turns that data into meaningful trends so you can understand how your sleep, heart, movement, workouts and recovery may be connected to how well you’re aging. See what’s improving, what needs attention and which habits may make the biggest difference. ## Food Logging in Seconds Eating well shouldn’t require spending your life logging meals. Our ultra-fast food logging workflow lets you record food in just a few seconds. The app analyzes your nutritional patterns and recommends **healthy-aging recipes based on what your diet may currently be missing**, making it easier to decide what to eat next. Track nutrients, spot gaps and build a diet designed around helping you feel and look your best for longer. ## Get Stronger With Age Automatically import supported workouts from Apple Watch or track your gym sessions directly. Log exercises, weights and reps to follow: * Strength progression * Training volume * Workout consistency * Personal gym trends Because staying young isn’t only about how you look—it’s about staying strong, capable and energetic. ## More Than One Health Score Your tracked metrics are also mapped to research-informed insights across: **Heart Health** Follow cardiovascular and fitness trends. **Muscle Health** See how your strength, activity and training are progressing. **Cognitive Health** Understand lifestyle factors associated with maintaining brain health. **Mental Health** Explore how sleep, movement, recovery and nutrition relate to wellbeing. **Hormonal Health** Track lifestyle patterns associated with hormonal health. **Skin & Hair Health** See nutritional and lifestyle factors associated with healthy skin and hair. ## Sleep, Body & Cycle Track supported sleep and recovery data from Apple Watch, follow body metrics and body composition over time, and keep your menstrual cycle alongside the rest of your health data. See your body as one connected system—not dozens of disconnected apps and charts. ## Make Aging Visible You can’t stop time. But you can understand what your body is doing with it. **Track your Health Age. Understand your Aging Speed. Build habits that help you stay younger for longer.** Apple Health and Apple Watch integrations require compatible devices and permissions. Health Age, Aging Speed and related insights are research-informed estimates intended for general wellness and informational purposes. They are not medical diagnoses or substitutes for professional medical advice. And they DO NOT treat, cure or diagnose any diseases.
Doctwin
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Doctwin is a remote patient monitoring app designed for physicians to track and manage their patients’ health effectively. With Doctwin, healthcare providers can follow up with patients in real time, gaining valuable insights into their daily progress and overall wellbeing.
Screenshots
Verdict
The clearest difference is in-app purchases: Doctwin at none against Calorie Ai's 10. Doctwin also leads on ads (none vs shown) and device support (3 vs 1). Calorie Ai's advantage is update cadence (weekly vs fortnightly). On price 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. Calorie Ai sells 10 in-app purchases, starting at $9.99 per month. Doctwin asks for nothing beyond the download.
Calorie Ai ships an update weekly, Doctwin fortnightly. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | Calorie Ai | Doctwin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (20 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 20 — better | — |
| Update frequency | Weekly — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 263 MB | 94 MB |
| Age rating | 4+ | 17+ |
| Developer | Kava Oy | DIGITAAM - FZCO |
In-app purchases
Calorie Ai
- Coti Premium Monthly1 Month trial$9.991 Month
- Coti Plus Monthly$9.991 Month
- Coti Plus Monthly$14.991 Month
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- Coti Plus Yearly1 Year trial$17.991 Year
- Coti Plus 3-Months$24.993 Months
- Coti Plus 3-Months3 Days trial$24.993 Months
- Coti Plus Yearly$39.991 Year
- Coti Plus Yearly3 Days trial$44.991 Year
- Lifetime -50%$29.99
- Coti Lifetime Purchase$89.99
Doctwin
No in-app purchases
Questions
Is Calorie Ai free?
Is Doctwin free?
Do Calorie Ai or Doctwin have ads?
Which is updated more often, Calorie Ai or Doctwin?
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