Lifesum: AI Calorie Counter
v23.7.1Health-conscious individuals and weight management seekers who want a tech-forward, simplified way to track nutrition and build sustainable lifestyle habits.
What Is Lifesum: AI Calorie Counter?
Launched Feb 5, 2019
Updated Mar 2026
What users think
Key Features
AI-powered photo recognition, voice commands, and text input for meal logging.
A weekly health evaluation grading nutrition, exercise, and hydration.
Detailed tracking of protein, carbs, and fats with adjustable goals.
Tailored plans for Keto, Paleo, Mediterranean, Fasting, and High Protein.
Recent User Sentiment
“Recent user voice shows a frustrated sentiment. Users appreciate historical ease of use and macro tracking features, but report ai-centric ui overhaul and data inaccuracy & hallucinations.”
What Users Love
I have used this app for several years. It is easy and accurate, even the free version.
Love tracking macros with this app
Pain Points
The pivot to “AI” ruined this app... completely changed the interface to be more like an AI chat bot.
The AI somehow hallucinated that the meal contained chocolate and it was incapable of extracting the correct calorie count.
High confidence · 49 reviews available
App Store Performance
| Chart | Rank | Change |
|---|---|---|
| Grossing | #99 | NEW |
Pros and Cons
Pros
- Advanced multimodal AI logging (photo/voice/text)
- Unique 'Life Score' holistic health metric
- Strong ecosystem integration (Apple Health, Fitbit)
- Large 65M user base providing a data moat
Cons
- AI hallucinations leading to inaccurate calorie data
- Alienating UI overhaul for long-term users
- Technical instability and frequent crashes
- Missing basic features like custom water units and fiber tracking
Market Outlook
Growth Opportunities
- Competitors can win by offering more reliable manual tracking
- Market gap for 'Verified AI' suggestions to build trust
- Expansion into granular micronutrient tracking
Market Threats
- High churn of premium subscribers due to UI friction
- Reputational damage from nutritional data inaccuracies
- Aggressive feature parity from more stable competitors
Key Takeaways
Lifesum: AI Calorie Counter is a frustrating health & fitness app that is free with in-app purchases. With a 4.6/5 rating from 148.5K reviews, it frustrates many users from users. Users particularly appreciate historical ease of use, though ai-centric ui overhaul remains a common concern.
Best for: Health-conscious individuals and weight management seekers who want a tech-forward, simplified way to track nutrition and build sustainable lifestyle habits.
App Details & Pricing
Model: freemium
The app gates its most innovative AI features and specialized plans behind a multi-tiered subscription model, leveraging a large free user base to drive premium conversions.