Comparison

Zempy vs Calorie Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Zempy

Effortlessly track your nutrition by simply taking a photo of your meal. Receive instant, detailed nutritional analysis to help you reach your fitness goals. This intuitive platform simplifies the process, offering insights to support your journey.

Highlights
  • AI-powered calorie tracking
  • Photo-based meal analysis
  • Personalized fitness plans
  • Detailed nutritional breakdown
  • Intuitive user interface
Features
Read full description

HOW TO USE Zempy: Complete a few lifestyle questions to personalize your plan. Take a photo of your meal. Instantly receive a detailed nutritional analysis. Cal AI is designed to help you achieve your fitness goals faster than ever. We simplify the process, providing an intuitive platform that makes tracking your nutrition easy. Our mission is to help you feel confident in your body with minimal time and effort. While you’ll need to put in the work, we're here to support you with the tools and insights to make it happen. DISCLAIMER: We do not provide medical advice. All suggestions should be considered informational, and you should consult a professional and do your own research before starting any new diet or nutritional plan. SUBSCRIPTION REQUIRED FOR DETAILED ANALYSIS. Purchases is needed for use. Privacy Policy: https://catalyticventure.com/privacy-policy Terms of Service: https://heavy-king-6a5.notion.site/Terms-of-Service-e8859fff210d45ac96bda0282c749927?pvs=4

About

Calorie Tracker

This app uses AI to estimate calories and macronutrients from food photos. It offers fast editing, barcode scanning, and a comprehensive food database for easy logging. Track your progress towards custom goals with macro diaries and reminders.

Highlights
  • AI photo calorie estimation
  • Fast food logging and editing
  • Barcode scanning
  • Extensive food database
  • Macro diary and progress tracking
  • Customizable reminders
Features
Read full description

Counter AI is a subscription-based calorie tracking app. A subscription is required to access all features. How it works • Photo capture: snap your food for calorie + macro estimates powered by AI • Fast edits: fix portions or ingredients anytime • Barcode scanning: quick logging for packaged foods • Food database: search and add common foods fast Why people stick with it • Macro diary: watch your daily targets update as you log • Progress tracking: simple trends that keep you consistent • Custom reminders: gentle nudges to drink water, move, or log snacks Built for any goal Cut, bulk, maintain, or just eat more intentionally. Set your calorie and macro targets your way and keep it simple day to day. A quick note on accuracy Photo-based logging provides estimates. You are always in control and can edit any entry to match what you actually ate. Body composition and metabolic rate values are estimates for informational purposes only and are not a substitute for professional medical advice. Sources for health calculations Basal Metabolic Rate: Mifflin-St Jeor equation — Mifflin MD, St Jeor ST, et al. "A new predictive equation for resting energy expenditure in healthy individuals." American Journal of Clinical Nutrition, 1990;51(2):241–247. https://pubmed.ncbi.nlm.nih.gov/2305711/ Total Daily Energy Expenditure: BMR × activity factor per the Institute of Medicine Dietary Reference Intakes (2005). https://nap.nationalacademies.org/read/10490/ Body fat percentage: U.S. Navy circumference method — Hodgdon JA, Beckett MB. "Prediction of percent body fat for U.S. Navy men and women from body circumferences and height." Naval Health Research Center, 1984. https://apps.dtic.mil/sti/citations/ADA143890 Macronutrient targets: Acceptable Macronutrient Distribution Ranges, Dietary Guidelines for Americans 2020–2025. https://www.dietaryguidelines.gov Subscription details Options: Annual, Monthly and Weekly auto-renewing subscriptions A free trial may be offered to new subscribers; after the trial, the subscription renews at the standard rate Payment is charged to your Apple ID at confirmation of purchase Subscription auto-renews unless cancelled at least 24 hours before the end of the current period Manage or cancel anytime in Apple ID account settings Terms of Service: https://www.summitintelligence.io/terms-of-service Privacy Policy: https://www.summitintelligence.io/privacy-policy Questions or ideas? Email support@insightlabs.ai

Screenshots

Zempy3 screens
Calorie Tracker4 screens

Verdict

The call

The clearest difference is rating: Calorie Tracker at 4.7 against Zempy's 4.2. Calorie Tracker also leads on review sentiment (88% vs 63%) and ratings volume (1.5K vs 38). Zempy's advantage is update cadence (every 3 days vs every 6 days) and iOS requirement (13.0 vs 16.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zempy sells 6 in-app purchases, starting at $9.99 per month and Calorie Tracker sells 10 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calorie Tracker holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Calorie Tracker has 1.5K ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 63% of Zempy's written reviews are positive against 88% of Calorie Tracker's.

UpkeepUpdate frequency

Zempy ships an update every 3 days, Calorie Tracker every 6 days. Both last shipped on October 30, 2026.

Scorecard5 real differences · 5 level
Zempy versus Calorie Tracker: the parameters behind the verdict, then further details
ParameterZempyCalorie Tracker
PriceFreeFree
Rating4.2 (38 ratings)4.7 (1.5K ratings) — better
Positive reviews62.5% of reviews87.5% of reviews — better
Number of ratings381.5K — better
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionSubscription
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size71 MB163 MB
Age rating4+4+
DeveloperCatalytic Venture, Inc.Summit Intelligence Pte Ltd

Customer experience

Zempy

All ratings38 ratings
Positive76.3%
Neutral7.9%
Negative15.8%
Written reviews16 reviews
Positive62.5%
Neutral18.8%
Negative18.8%

Calorie Tracker

All ratings1,536 ratings
Positive93.4%
Neutral2.7%
Negative3.9%
Written reviews232 reviews
Positive87.5%
Neutral0.9%
Negative11.6%

Bugs and requests

Zempy

Not enough reviews yet to summarise bugs or requests.

Calorie Tracker

Reported bugs

2 issues
  • Subscription pop-ups that cannot be closed
  • Compatibility issues on older devices

Requested features

2 requests
  • More supplement tracking options
  • Expanded food database for specific dietary needs

In-app purchases

6 purchases

Zempy

Subscriptions6
  • Monthly Subscription$9.991 Month
  • Monthly$14.991 Month
  • Yearly OneTimeOffer$19.991 Year
Show 3 more
  • Yearly Subscription$34.991 Year
  • Yearly One-Time-Offer$39.991 Year
  • Yearly$69.991 Year
10 purchases

Calorie Tracker

Subscriptions10
  • Weekly$4.997 Days
  • Weekly$6.997 Days
  • Weekly3 Days trial$7.997 Days
Show 7 more
  • Weekly$9.997 Days
  • Annual$29.991 Year
  • Annual3 Days trial$35.991 Year
  • Annual7 Days trial$39.991 Year
  • Annual$39.991 Year
  • Counter AI (Annual)3 Days trial$49.991 Year
  • Annual7 Days trial$99.991 Year

Questions

Is Zempy free?
Zempy is free to download, with in-app purchases available.
Is Calorie Tracker free?
Calorie Tracker is free to download, with in-app purchases available.
Which has better reviews, Zempy or Calorie Tracker?
Calorie Tracker is rated higher. Zempy averages 4.2 out of 5 from 38 ratings, while Calorie Tracker averages 4.7 from 1.5K ratings.
Do Zempy or Calorie Tracker have ads?
Neither Zempy nor Calorie Tracker shows ads.
Which is updated more often, Zempy or Calorie Tracker?
Zempy ships an update every 3 days, and Calorie Tracker every 6 days. Most recently, Zempy was updated on October 30, 2026 and Calorie Tracker on October 30, 2026.

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