Category Research: What Users Complain About

Pick a category and see the complaint profile of its leading apps side by side, plus the problems that run across the whole niche. Built from the negative reviews we already analyzed, so nothing here is a guess about what people might dislike.

Platform
20 apps ranked by audience size20 with a complaint profileProfiles generated Jul 31, 2026 to Aug 24, 2026

Problems across the whole category

Share of the 20 profiled apps whose top complaints include each theme. A theme carried by most of the category is a problem nobody in the niche has solved.

45%Billing and refunds9 of 20 apps
Flo Cycle & Period Tracker: Aggressive marketing and chargesClue Cycle & Period Tracker: Billing and subscription issuesAllTrails: Hike, Bike & Run: Expensive subscription modelPlanet Fitness: Billing and membership problems

Did not surface in the top complaints of: Lose Weight App for Men (4.9), Step Counter - Pedometer (4.8), Flo Ovulation & Period Tracker (4.7)

25%Paywall and pricing5 of 20 apps
Flo Ovulation & Period Tracker: Too many features behind paywallMyFitnessPal: Calorie Counter: Essential features behind paywallClue Cycle & Period Tracker: Intrusive ads and premium pushesStrava: Run, Bike, Walk: Too many paywalled features

Did not surface in the top complaints of: Lose Weight App for Men (4.9), AllTrails: Hike, Bike & Run (4.9), Planet Fitness (4.9)

25%Accuracy and data quality5 of 20 apps
Flo Ovulation & Period Tracker: Inaccurate period predictionsStrava: Run, Bike, Walk: Inaccurate GPS/distance trackingStep Counter - Pedometer: Inaccurate step countingGoogle Fit: Activity Tracking: Inaccurate step counting

Did not surface in the top complaints of: Lose Weight App for Men (4.9), AllTrails: Hike, Bike & Run (4.9), Planet Fitness (4.9)

20%Sync and data loss4 of 20 apps
Google Health (Fitbit): Syncing issues with devicesStrava: Run, Bike, Walk: Device syncing failuresGarmin Connectâ„¢: Syncing problems with devicesGoogle Fit: Activity Tracking: Data syncing problems
20%Interface and usability4 of 20 apps
MyFitnessPal: Calorie Counter: New UI is hard to useFlo Cycle & Period Tracker: Poor user interface designClue Cycle & Period Tracker: Unintuitive or missing featuresGoogle Health (Fitbit): Poor navigation and UI
20%Advertising4 of 20 apps
MyFitnessPal: Calorie Counter: Intrusive adsStep Counter - Pedometer: Excessive adsPlanet Fitness: Excessive third-party adsImpulse - Brain Training Games: Excessive disruptive ads
20%Crashes and stability4 of 20 apps
Google Health (Fitbit): App crashes frequentlyPlanet Fitness: App loading or crashing issuesGoogle Fit: Activity Tracking: App crashes during useCalm - Sleep, Meditate, Relax: Technical issues and crashes
15%Bugs and glitches3 of 20 apps
MyFitnessPal: Calorie Counter: Frequent bugsAllTrails: Hike, Bike & Run: Technical bugs and glitchesFinch: Self-Care Pet: Technical glitches and bugs
10%Update regressions2 of 20 apps
MyFitnessPal: Calorie Counter: Poor update changesGarmin Connectâ„¢: Lost features after updates
10%Battery and storage2 of 20 apps
Google Health (Fitbit): Battery drains quicklyGarmin Connectâ„¢: Poor battery performance
5%Delivery and fulfillment1 of 20 apps
Sweatcoin・Walking Step Counter: Rewards not delivered
5%Notifications1 of 20 apps
I am - Daily Affirmations: Excessive notifications and alarms
5%Broken or missing features1 of 20 apps
Google Health (Fitbit): Broken food logging
5%Login and account access1 of 20 apps
MyFitnessPal: Calorie Counter: Account management issues
5%Customer support1 of 20 apps
BetterMe: Health Coaching: Poor or no customer support
40%Niche-specific complaints8 of 20 apps

Complaints too specific to this category to fit a shared theme. Often the most interesting ones.

Flo Ovulation & Period Tracker: Insensitive or irrelevant contentSweatcoin・Walking Step Counter: Steps not counted accuratelySweatcoin・Walking Step Counter: Difficulty redeeming coinsLose Weight App for Men: Hindi language not displaying

App by app

Ordered by audience size, so the list reads as the competitive landscape rather than a worst-of ranking.

Flo Ovulation & Period Tracker
Flo Ovulation & Period TrackerFlo Health Inc.★ 4.70 · 5.0M ratings
Too many features behind paywallInaccurate period predictionsInsensitive or irrelevant content

Users complain about excessive paywalls for basic features, inaccurate period predictions, and insensitive or irrelevant content. Many feel the app pressures them into paying for premium after collecting personal data through lengthy questionnaires.

Sweatcoin・Walking Step Counter
Sweatcoin・Walking Step CounterSweatco Ltd★ 4.30 · 3.0M ratings
Rewards not deliveredSteps not counted accuratelyDifficulty redeeming coins

Users frequently complain that rewards are not delivered after watching ads, steps are not accurately counted, and the app makes it difficult to redeem earned coins by increasing required amounts or removing offers. Many feel misled by the app's promises.

MyFitnessPal: Calorie Counter
MyFitnessPal: Calorie CounterMyFitnessPal, Inc.★ 4.40 · 2.9M ratings
New UI is hard to useEssential features behind paywallAccount management issues

Users frequently complain about the app's recent UI update, making it harder to navigate and less user-friendly. Many are frustrated with essential features like barcode scanning being locked behind a paywall. Additionally, there are issues with account management, including difficulty canceling subscriptions and deleting accounts.

Lose Weight App for Men
Lose Weight App for MenLeap Fitness Group★ 4.90 · 2.7M ratings
Hindi language not displayingDownload issuesUnclear weight loss results

Users report issues with the app not displaying Hindi language, difficulties in downloading, and unclear effectiveness for weight loss. Some reviews are very brief or unclear, making it hard to determine specific problems.

MyFitnessPal: Calorie Counter
MyFitnessPal: Calorie CounterMyFitnessPal, Inc.★ 4.70 · 2.3M ratings
Poor update changesIntrusive adsFrequent bugs

Users are highly dissatisfied with recent updates, citing a clunky and confusing interface, frequent bugs, and intrusive ads. Many long-time users feel the app has become harder to use and less reliable, with essential features now behind a paywall or removed entirely.

Flo Cycle & Period Tracker
Flo Cycle & Period TrackerFLO HEALTH UK LIMITED★ 4.70 · 1.9M ratings
No Arabic language supportPoor user interface designAggressive marketing and charges

Users frequently complain about the lack of Arabic language support, making the app difficult to use for Arabic speakers. Many also express frustration with the app's user interface, citing too many pop-ups, confusing elements, and a cluttered design. Additionally, there are complaints about aggressive marketing tactics and unexpected subscription charges.

Clue Cycle & Period Tracker
Clue Cycle & Period TrackerClue Period Tracker by BioWink★ 4.50 · 1.5M ratings
Intrusive ads and premium pushesBilling and subscription issuesUnintuitive or missing features

Users frequently complain about intrusive ads and aggressive push for premium upgrades, making the app difficult to use. Many report issues with billing, including unauthorized charges and difficulty canceling subscriptions. Others find the app unintuitive, with missing or paywalled features that were previously free.

Google Health (Fitbit)
Google Health (Fitbit)Google LLC★ 3.70 · 1.3M ratings
App crashes frequentlySyncing issues with devicesBattery drains quickly

Users report frequent app crashes, syncing issues, and battery drain on devices since the transition to Google Health. Many complain about the loss of features, poor design, and unreliable tracking of activities and health data.

Strava: Run, Bike, Walk
Strava: Run, Bike, WalkStrava Inc.★ 4.60 · 1.2M ratings
Too many paywalled featuresInaccurate GPS/distance trackingDevice syncing failures

Users frequently complain about excessive paywall restrictions, with many basic features locked behind a subscription. Technical issues like inaccurate GPS tracking, failed activity recordings, and device syncing problems are also common. Many find the app overly pushy with premium subscription ads and report poor customer support.

Garmin Connectâ„¢
Garmin Connect™Garmin★ 4.30 · 1.1M ratings
Syncing problems with devicesLost features after updatesPoor battery performance

Users frequently report issues with syncing data between devices, losing functionality after updates, and poor battery performance. Many complain about the app's usability, especially for older users or specific activities like gym workouts. Recent updates have removed features like activity editing and added intrusive ads, frustrating long-time users.

AllTrails: Hike, Bike & Run
AllTrails: Hike, Bike & RunAllTrails, Inc.★ 4.90 · 1.0M ratings
Expensive subscription modelTechnical bugs and glitchesPoor Apple Watch support

Users frequently complain about the app's subscription model, describing it as expensive and misleading with automatic charges after a free trial. Many report technical issues, including bugs, slow map loading, and poor Apple Watch functionality. Others criticize the app for lacking trails, inaccurate location data, and being less intuitive compared to alternatives like Wikiloc.

Step Counter - Pedometer
Step Counter - PedometerHitchhike Tech★ 4.80 · 781K ratings
Excessive adsInaccurate step countingRedirects to other apps

Users frequently complain about excessive ads that disrupt the app's functionality and make it difficult to use. Many also report inaccurate step counting, with steps not being recorded correctly or falsely counted during inactivity. Additionally, some users mention the app redirecting them to install other apps or spamming notifications.

Planet Fitness
Planet FitnessPlanet Fitness Holdings, LLC★ 4.90 · 758K ratings
App loading or crashing issuesExcessive third-party adsBilling and membership problems

Users frequently report technical issues with the app, including loading problems, login failures, and unresponsiveness. Many complain about excessive third-party promotions and ads within the app, overshadowing fitness-related features. Additionally, there are numerous complaints about billing problems, such as unauthorized charges and difficulties canceling memberships.

Finch: Self-Care Pet
Finch: Self-Care PetFinch Care Public Benefit Corporation★ 4.90 · 733K ratings
Technical glitches and bugsAggressive subscription promptsRestrictive shop system

Users frequently report technical glitches, such as event countdowns freezing, tasks disappearing, or the app crashing. Many express frustration with the shop system's randomness and limited free refreshes, as well as aggressive prompts to subscribe to Finch Plus. Some find the app repetitive or poorly adapted to their location or needs, like seasonal mismatches or accessibility oversights.

BetterMe: Health Coaching
BetterMe: Health CoachingBetterMe Limited★ 4.70 · 704K ratings
Unauthorized or hidden chargesNo refunds after cancellationPoor or no customer support

Users frequently complain about unauthorized and unexpected charges, often much higher than advertised prices, with difficulty obtaining refunds. Many report being charged for services they didn't authorize or after canceling subscriptions. Customer support is described as unresponsive or nonexistent, making resolution nearly impossible.

I am - Daily Affirmations
I am - Daily AffirmationsMonkey Taps★ 4.80 · 692K ratings
Misleading billing and unexpected chargesExcessive notifications and alarmsHigh subscription cost

Users frequently complain about misleading free trials and unexpected charges, often without promised reminders before billing. Many report excessive and intrusive notifications, including persistent alarms that continue after uninstalling the app. Others criticize the high subscription cost, repetitive content, and disruptive pop-ups urging them to share or upgrade.

Google Fit: Activity Tracking
Google Fit: Activity TrackingGoogle LLC★ 3.50 · 681K ratings
Inaccurate step countingData syncing problemsApp crashes during use

Users frequently report inaccurate activity tracking, especially step counts that decrease unexpectedly or don't match other apps. Many complain about data syncing issues, lost workout records, and the app closing during use. Some find sleep tracking unreliable and note missing exercise types like swimming.

Google Health (Fitbit)
Google Health (Fitbit)Google★ 4.50 · 676K ratings
Poor navigation and UIInaccurate sleep trackingBroken food logging

Users are highly dissatisfied with the transition from the Fitbit app to Google Health, citing poor navigation, lost data, and inaccurate tracking. Many complain about the app's clunky interface, broken features like sleep and activity tracking, and frustrating food logging. Long-time Fitbit users express disappointment and are considering switching to other brands due to these issues.

Impulse - Brain Training Games
Impulse - Brain Training GamesGMRD Apps Limited★ 4.50 · 627K ratings
Excessive disruptive adsAggressive paywallsSubscription billing issues

Users frequently complain about excessive ads that disrupt gameplay, often forcing them into the app store or making the app unusable. Many also report aggressive paywalls, hidden subscription charges, and difficulty canceling paid plans. Some feel the puzzles are too simplistic or that the app misleads users by hiding test results behind premium paywalls.

Calm - Sleep, Meditate, Relax
Calm - Sleep, Meditate, RelaxCalm.com, Inc.★ 4.50 · 612K ratings
Unexpected subscription chargesTechnical issues and crashesLack of free content

Users frequently complain about the app's payment model, with many expressing frustration over unexpected charges, difficulty canceling subscriptions, and lack of free content. Technical issues, such as app crashes and audio glitches, are also common complaints. Additionally, some users find the interface overwhelming or outdated.

Complaint profiles are generated from 1-3 star reviews on the App Store and Google Play and refreshed periodically. Theme grouping is rule-based, so the same complaint label always lands in the same theme. Ratings come from the stores themselves.