Fastie is a health and fitness app for intermittent fasting and calorie tracking on iOS and Android.
Product velocity
Maintenance
Daily rank 🇺🇸
—
Health & Fitness
Sentiment
4.5
6k reviews
Nemesis
Calorie Counter by Lose It!
The App DNA
What makes this app unique?
Users hire Fastie to manage weight loss and metabolic health through structured fasting schedules, though the current AI-only logging limits the utility for users requiring high-precision data entry.
For Individuals focused on weight loss, metabolic health, and intermittent fasting who require structured meal planning and calorie tracking.
What does it look like?
Key features
Rapid food logging via camera.
Customizable fasting schedules.
Protein, carb, and fat logging.
Curated diet-specific meal suggestions.
How much does it cost?
Freemium model utilizing feature-gating for advanced nutritional planning to drive subscription conversion.
Velocity
Maintenance developmentopaqueperformanceShow more...
The development cadence is currently in a maintenance state, with only two releases identified over the last 14 months. The latest release occurred on October 31, 2025, following a significant gap since the previous update in March 2025. There is no evidence of active live-ops or frequent feature iteration, suggesting a focus on minimal stability maintenance rather than growth.
Who built it?
DEEP FLOW SOFTWARE SERVICES
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Plantify: AI Plant IdentifierUser Sentiment
What do users think recently?
Review voice lately leans mixed. Users appreciate food scanning functionality provides significant utility for tracking daily nutritional intake and progress, but report inaccurate ai food recognition and lack of manual editing tools frustrate users seeking precision.
How are ratings & reviews evolving?
What users say, by theme
- Food scanning functionality provides significant utility for tracking daily nutritional intake and progress
- Inaccurate AI food recognition and lack of manual editing tools frustrate users seeking precision
75 of 81 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 Fastie: Calorie & Food Tracker
How's the Health & Fitness market?
Fastie holds a #32 Grossing rank in the US Health & Fitness category, signaling strong monetization despite a mixed sentiment score of 45. The gap between its high grossing rank and the user frustration regarding AI accuracy suggests that current revenue is driven by initial conversion rather than long-term retention.
Read the market outlookThe rivals identified
By FitNow
With over 750,000 reviews and a 17-year history, Lose It! represents the definitive incumbent in the calorie-tracking and weight-loss niche.
- Massive verified food database reduces user friction compared to manual entry-heavy alternatives
- Advanced barcode scanning and photo-recognition features streamline the daily logging experience for users
- Deep integration with wearable health ecosystems provides a holistic view of energy expenditure
Noom Weight Loss, Food TrackerContender
Carb Manager—Keto Diet TrackerContender
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 Fastie: Calorie & Food Tracker
Where is it heading?
The health tracking market is shifting toward high-precision data entry, leaving apps that rely solely on AI recognition vulnerable to churn. Fastie must bridge the gap between its current AI-first approach and the user demand for manual control to maintain its #32 grossing position.
- Persistent AI inaccuracy in the latest release prevents manual correction, which forces power users to abandon the app for more reliable competitors.
- The addition of customizable fasting plans in the latest release provides a clear retention hook that differentiates the app from generic calorie counters.
The SWOT
- Fasting-first habit loop drives daily active usage
- Barcode scanner reduces friction for new users
- Manual override implementation to capture precision-focused users
- B2B partnerships with metabolic health clinics
Next best moves
Ship manual override for AI food logs because users cite inaccuracy as a top churn driver → improve retention
+ 1 more prioritized moveThe counter-intuitive read
The app's aggressive monetization is not a bug…
Read the full takeFeature gaps
Verified community food database (available in Lose It!) +1
Since the last report: The app has transitioned to a maintenance-only development cadence, resulting in a slight decline in user ratings and a narrowing of its competitive feature set.
Bottom line
Fastie succeeds as a fasting-first tracker, but the lack of manual data editing creates a hard ceiling for serious users, so the PM must prioritize logging precision to prevent churn to database-heavy competitors.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
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