Calz is an AI-powered calorie and macro tracker for weight loss and muscle gain, available on iOS and Android.
Product velocity
Intense
Daily rank 🇺🇸
—
Health & Fitness
Sentiment
4.6
133k reviews
Nemesis
Calorie Counter by Lose It!
The App DNA
What makes this app unique?
Users hire Calz to automate the tedious manual logging of food intake via photo scanning, reducing the friction of maintaining a daily diet journal.
For Individuals managing weight loss, muscle gain, or general nutrition who require automated logging tools.
What does it look like?
Key features
Camera-based image recognition identifies meals and ingredients to calculate nutritional values
Logs daily intake of protein, carbs, and fats against personalized targets
Built-in timer with customizable protocols for tracking fasting windows
How much does it cost?
Freemium model anchored at $29.99/year, utilizing subscription gates for advanced analysis and reporting features.
Velocity
Intense developmentShow more...
5 versions in history. Development pace: intense.
Who built it?
Wachanga
13+ apps tracked · Health & Fitness
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What do users think recently?
Review voice lately leans mixed. Users appreciate automatic calorie calculation from food photography provides significant time savings for daily tracking, but report inaccurate food recognition and calorie estimation force users to manually correct data frequently.
How are ratings & reviews evolving?
What users say, by theme
- Automatic calorie calculation from food photography provides significant time savings for daily tracking
- Inaccurate food recognition and calorie estimation force users to manually correct data frequently
95 of 95 recent reviews analyzed · high confidence · Mixed overall
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Calz: Calorie Counter AI
How's the Health & Fitness market?
Calz holds a top-100 grossing position in over 20 markets, including #3 in Vietnam and #6 in Lithuania. The gap between its high monetization rank and frequent complaints about subscription transparency signals that aggressive billing is currently driving revenue at the expense of long-term retention.
Read the market outlookThe rivals identified
By FitNow
With over 750k reviews and a 16-year market presence, this is the dominant incumbent in the calorie-tracking space.
- Extensive food database built over 16 years creates a significant barrier to entry for new trackers.
- High-frequency release cadence of 26 updates in six months demonstrates aggressive feature iteration and maintenance.
- Long-term user retention data and historical weight tracking provide a deeper personalization engine than newer AI-only tools.
Noom Weight Loss, Food TrackerContender
Carb Manager—Keto Diet TrackerContender
Lifesum: AI Calorie CounterContender
Calorie Counter - MyNetDiaryContenderUnlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Calz: Calorie Counter AI
Where is it heading?
The nutrition-tracking market is consolidating around apps that offer both AI convenience and deep ecosystem integration. Calz is currently exposed because its technical instability and billing friction prevent it from moving beyond a novelty tool into a daily-use necessity.
- Technical instability during photo scanning causes data loss, which erodes the core habit-forming loop and drives negative sentiment.
- The AI-based food scanner continues to attract new users, indicating that the value proposition remains highly relevant to the target audience.
The SWOT
- AI-based photo logging reduces manual friction for casual users
- Gamified streaks and badges drive session frequency
- Integrate with health platforms to improve data utility
- Allow manual calorie goal overrides for specific user needs
Next best moves
Pivot subscription onboarding to transparent trial terms because 1★ reviews flag billing as top complaint → reduce refund surge
+ 1 more prioritized moveThe counter-intuitive read
The app's aggressive subscription friction is not a…
Read the full takeFeature gaps
Third-party health platform integration (available in MyFitnessPal but missing here) +1
Since the last report: The app shifted to a freemium model and expanded its feature set, but faces new headwinds from technical instability and user backlash against aggressive subscription tactics.
Bottom line
Calz wins on AI-driven convenience but loses on billing transparency and technical reliability, so the PM must prioritize subscription clarity and data-syncing to prevent user churn to more established, ecosystem-integrated competitors.
Unlock 3 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeReport last updated