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Report updated May 5, 2026

Lifesum: AI Calorie Counter is a challenged health & fitness app that is available. With a 4.6/5 rating from 149.2K reviews, it faces significant user friction. Users particularly appreciate long-term users value the core calorie and macro tracking utility provided by the application, though forced ai integration post-update creates significant usability friction and inaccurate nutritional data logging remains a common concern.

What is Lifesum: AI Calorie Counter?

Lifesum is a health and fitness app for nutrition and weight management, offering AI-assisted meal logging and personalized meal plans on iOS.

Users hire Lifesum to simplify the daily friction of calorie and macro tracking through multimodal entry, aiming to build sustainable health habits rather than short-term fixes.

Current Momentum

v23.9 · today

Maintenance
  • Ships general bug fixes and improvements.
  • Maintains aggressive subscription-upsell cadence.

Active Nemesis

MyFitnessPal: Calorie Counter

MyFitnessPal: Calorie Counter

By MyFitnessPal

Other Rivals

Lose It! – Calorie Counter
Noom Weight Loss, Food Tracker
WeightWatchers Program
Carb Manager—Keto Diet Tracker
BetterMe: Health Coaching
Fitbit: Health & Fitness
Calorie Counter - MyNetDiary
Cal AI - Calorie Tracker

7-Day Rank Pulse 🇺🇸

Health & Fitness

No ranking data

Rating Pulse 🇺🇸

Recent User Mood

What makes this app unique?

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What Are The Key Features?

Multimodal Meal LoggingDifferentiator

Logs food intake via photo recognition, voice input, barcode scanning, or manual text entry.

Life ScoreDifferentiator

Evaluates health status based on aggregated nutrition, hydration, and activity data points.

How much does it cost?

Subscription
  • Free tier with limited features
  • Premium tier via 1-month, 3-month, and annual auto-renewing subscriptions

Freemium model uses feature gating to push users toward recurring revenue subscriptions.

Who Built It?

Lifesum AB app icon

Simplifying healthy eating through AI-driven nutrition tracking and personalized lifestyle insights for health-conscious users.

Portfolio

1

Apps

Explore the full Lifesum AB report

Portfolio breakdown, audience, momentum, and every app published by Lifesum AB.

Go deeper

What do users think recently?

High confidence · 98 reviews analyzed · Based on 98 reviews. Signal may be noisy.

How did the latest release land?

Overall
4.6/ 5
(149.2K)
Current version
4.6/ 5
0.0 vs overall
(149.2K)
Main signal post-update: long-term users value the core calorie and macro tracking utility provided by the application.

What is the recent mood?

Frustrated

Recent user voice shows a frustrated sentiment. Users appreciate long-term users value the core calorie and macro tracking utility provided by the application and barcode scanning functionality remains a reliable tool for quick food entry in the free version, but report forced ai integration post-update creates significant usability friction and inaccurate nutritional data logging and persistent technical instability including frequent crashes and forced logouts degrades the daily tracking habit.

What Users Love

Long-term users value the core calorie and macro tracking utility provided by the application
Barcode scanning functionality remains a reliable tool for quick food entry in the free version

What Frustrates Users

Forced AI integration post-update creates significant usability friction and inaccurate nutritional data logging
Persistent technical instability including frequent crashes and forced logouts degrades the daily tracking habit

What Users Want

Users request the ability to set custom water vessel sizes for more accurate hydration tracking

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

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What is the competitive landscape for Lifesum: AI Calorie Counter?

Where is it available?

Localized markets (17)

United StatesBrazilCanadaGermanySpainFranceUnited KingdomIndonesiaIndiaItalyMexicoNetherlandsPortugalSwedenSingaporeTurkeyVietnam

How's The Health & Fitness Market?

How does it evolve in the Health & Fitness market?

Lifesum holds the #90 Grossing position in the US Health & Fitness category. The gap between its discovery-led free tier and monetisation-heavy premium gating signals a reliance on aggressive upselling to maintain revenue growth.

Rank progression

129 active rankings tracked — 30-day window

The rivals identified

Nemeses(1)

MyFitnessPal: Calorie Counter icon

MyFitnessPal, Inc.

4.4(2.9M)

With nearly 3 million ratings and a massive, established user base, this is the primary benchmark for calorie tracking and food database depth.

Differentiators

  • Maintains a massive, crowd-sourced food database that provides superior search results for niche or regional food items.
  • Offers deep integration with hundreds of third-party fitness trackers and wearable devices beyond basic health app syncing.
  • Provides a robust community forum and social support network that creates significant user lock-in through social accountability.

Head to head

Lifesum must lean into its AI-first logging speed to differentiate from the database-heavy, legacy dominance of MyFitnessPal.

Contenders(3)

WeightWatchers Program icon

WW International, Inc.

4.8(2.3M)

Leverages a powerful, proprietary points-based system that creates a unique, defensible ecosystem for its subscribers.

Differentiators

  • Uses a proprietary 'Points' system that simplifies complex nutritional data into a single, actionable daily budget.
  • Provides access to live coaching and community workshops, creating a high-touch service model that pure trackers lack.

Positions itself as a psychological weight-loss program rather than a simple tracker, capturing a distinct audience segment.

Differentiators

  • Integrates cognitive behavioral therapy principles to address the psychological drivers behind eating habits rather than just tracking calories.
  • Utilizes a color-coded food density system that simplifies nutritional choices for users without requiring deep macro knowledge.

High-velocity development with 28 releases in six months makes this a formidable competitor in feature innovation.

Differentiators

  • Aggressive release cadence allows for rapid iteration on user-requested features and bug fixes compared to slower competitors.
  • Focuses on a gamified weight-loss journey that keeps users engaged through visual progress tracking and milestone celebrations.

Same space(4)

Acts as a hardware-integrated platform that captures health data automatically, reducing the need for manual logging.

Differentiators

  • Hardware-software synergy allows for automatic activity and sleep tracking that informs nutritional needs without manual input.
  • Leverages Google's massive data infrastructure to provide long-term health trends and personalized wellness insights.
BetterMe: Health Coaching icon

BetterMe Limited

4.7(704K)

Broadens the scope to include holistic health coaching, moving beyond simple calorie counting.

Differentiators

  • Bundles meal tracking with personalized workout plans and intermittent fasting timers for a comprehensive health suite.
  • Uses a highly visual, content-heavy interface that emphasizes lifestyle transformation over granular data entry.
Calorie Counter - MyNetDiary icon

MyNetDiary Inc.

4.8(146.6K)

A high-quality, reliable alternative that focuses on clinical accuracy and a clean, user-friendly interface.

Differentiators

  • Provides highly accurate, verified food data that appeals to users prioritizing clinical precision over social features.
  • Features a highly intuitive, streamlined logging interface that minimizes the number of taps required to track meals.

Dominates the specialized low-carb and keto niche with highly tailored features for specific dietary needs.

Differentiators

  • Offers specialized macro tracking specifically optimized for ketogenic and low-carb diets, including net carb calculations.
  • Includes a vast library of keto-specific recipes and meal plans that provide immediate value to niche users.

Compare Lifesum: AI Calorie Counter against every rival

All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.

Go deeper

The outtake for Lifesum: AI Calorie Counter

Strengths to defend, gaps to attack

Core Strengths

  • AI-first logging interface reduces manual entry friction
  • Life Score provides a unique, personalized health feedback loop

Critical Frictions

  • Persistent authentication bugs and app crashes
  • Forced AI features lack an opt-out mechanism
  • Aggressive subscription pop-ups degrade user experience

Growth Levers

  • Expand into B2B wellness partnerships
  • Add fiber tracking as a primary macronutrient metric

Market Threats

  • MyFitnessPal's massive database depth
  • Cal AI's zero-friction computer vision focus
  • MacroFactor's data-driven, non-judgmental approach

What are the next best moves?

highInvest

Rebuild authentication flow because persistent logouts break the daily habit → improve retention

User complaints cite frequent forced logouts as a primary driver of churn.

Trade-off: Pause the planned UI refresh for the recipe library — authentication stability is a higher-impact retention blocker.

highPivot

Add AI opt-out toggle because forced logging inaccuracies drive negative sentiment → recover user trust

Sentiment analysis shows high-frequency complaints regarding AI-driven calorie miscalculations.

Trade-off: Deprioritize the new 'Life Score' social sharing feature — restoring core utility accuracy is the priority.

A counter-intuitive read

The 'AI-first' logging strategy is currently a liability, as the speed gains of AI are negated by the high cost of user-reported data inaccuracies and forced usage.

Feature Gaps vs Competitors

  • Crowd-sourced food database depth (available in MyFitnessPal)
  • Dynamic expenditure algorithms (available in MacroFactor)

Key Takeaways

Lifesum maintains a strong core utility through its AI-logging interface, but technical instability and forced AI features are actively eroding the user base, so the PM must prioritize authentication stability and manual-entry parity to prevent further churn.

Where Is It Heading?

Declining

The health-tracking market is consolidating around high-accuracy, data-driven tools, leaving Lifesum exposed to churn if it continues to prioritize forced AI features over core utility. The recent decline in sentiment suggests that unless the team pivots to stabilize the authentication flow and restore user control, the app will lose its competitive edge to more reliable, precision-focused rivals.

Technical instability in the latest update (crashes, forced logouts) degrades the daily tracking habit, which compounds the rating drag already visible on iOS.

Forced AI features without manual-entry alternatives drive high-frequency churn complaints, signaling that users prioritize data accuracy over automated convenience.

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Lifesum: AI Calorie Counter, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

Lifesum has entered a maintenance phase characterized by technical instability and user backlash against forced AI features, resulting in a decline in sentiment and development velocity.

declined

Sentiment Score Drop

shifted

Development Cadence

added

New Technical Weaknesses

removed

Feature List Consolidation

Cite this report

Marlvel.ai. “Lifesum: AI Calorie Counter Intelligence Report.” Updated May 5, 2026. https://marlvel.ai/apps/com-sillens-ishape

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