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App Radar
Real complaints from the App Store's most popular apps, framed as problems worth solving.
33 apps tracked
33 signals
Airbnb
Airbnb
⭐ 1.4 stars — Trustpilot as of May 2026
Cleaning fees hidden until checkout
Listings priced at $89 per night show total costs of $180 per night after cleaning fees, service fees, and occupancy taxes are added at checkout. The search results price is not the price paid. Users who discover the total after building a trip plan feel deceived by the interface design.
Opportunity
A total cost calculator for short-term rentals that shows the real all-in nightly rate including all fees before search results are displayed, enabling genuine price comparison across listings.
Block Blast
ARETIS LIMITED
⭐ 3.6 stars — App Store as of May 2026
Ad frequency makes the game unplayable
Ads appear after every level and sometimes mid-level. Some ads run over 30 seconds with no skip option. Banner ads run simultaneously with interstitial ads. Players who find the puzzle mechanics genuinely enjoyable are uninstalling specifically because of ad volume rather than gameplay quality.
Opportunity
A premium mobile puzzle game category where the one-time purchase eliminates ads entirely, targeting the large segment of players who want to pay once rather than endure ad loads or ongoing subscriptions.
Cash App
Block Inc
⭐ 2.1 stars — Trustpilot as of May 2026
Scam victims get no recourse
Cash App transfers are instant and irreversible. Scammers have built entire fraud ecosystems around this. Users who send money to scammers receive boilerplate responses and no refunds. The FTC has received tens of thousands of Cash App fraud complaints.
Opportunity
A fraud prevention layer specifically for peer-to-peer payment apps that flags suspicious payment requests before the user confirms an irreversible transfer.
Coinbase
Coinbase
⭐ 1.6 stars — Trustpilot as of May 2026
Account locked during market volatility
Accounts get locked precisely when users most need access. During high-volatility periods, verification systems overload and users cannot trade or withdraw. The timing of lockouts is the cruelest version of this problem.
Opportunity
A crypto exchange comparison tool that shows real account lockout rates, average verification times, and fee structures side by side before a user deposits funds.
DoorDash
DoorDash
⭐ 1.2 stars — Trustpilot as of May 2026
Wrong order gets a credit not a solution
Reporting a wrong order results in a partial credit for a future order. The restaurant never finds out. The same mistake happens again. The resolution process is designed for speed not for fixing the root cause. Customers who wanted the right food receive money toward ordering again from the same restaurant that already got it wrong.
Opportunity
A feedback layer between delivery platforms and restaurants that routes complaint data to the restaurant in real time, creating the accountability loop the current system deliberately avoids.
Evernote
Evernote Corporation
⭐ 2.1 stars — Trustpilot as of May 2026
Free tier limited to one device
In 2023 Evernote moved to a single-device limit on the free tier. Users with years of notes accumulated across devices found their data effectively inaccessible unless they paid. The company that pioneered note-taking as a free utility became a premium subscription with one of the most restrictive free tiers in the category.
Opportunity
A note-taking app that commits publicly to a stable free tier with multi-device sync as a permanent feature rather than using it as a monetisation lever.
Monopoly Go
Scopely
⭐ 3.1 stars — App Store as of May 2026
Energy system limits play to prevent free progression
The dice roll system limits how much a player can progress without paying. Running out of dice ends the session regardless of engagement or investment in the game. The limitation is not tied to any gameplay logic. It exists purely to monetise continued play.
Opportunity
A mobile board game with a one-time purchase model that removes the energy system and event timer mechanics entirely, selling an experience rather than harvesting engagement.
MyFitnessPal
MyFitnessPal
⭐ 3.1 stars — App Store as of May 2026
2026 redesign broke the core workflow
Logging a meal that used to take two taps now takes four to six. Calories per meal are no longer visible at a glance. Multi-select and copy-meal shortcuts were removed. The redesign added friction to the exact actions users repeat daily. Hundreds of thousands are switching to alternatives.
Opportunity
A calorie and nutrition tracker that does one thing well with no upselling, no redesigns that break existing workflows, and genuine freemium functionality.
PayPal
PayPal
⭐ 1.5 stars — Trustpilot as of May 2026
Account limitations and holds on legitimate funds
PayPal places holds and limitations on accounts receiving legitimate payments with no warning, no clear reason, and no efficient resolution path. Small businesses and freelancers who rely on PayPal for income have funds held for 21 days or longer during disputes that do not involve any wrongdoing on their part.
Opportunity
A freelancer payment tool that provides a clear upfront breakdown of exactly what percentage of each payment will be received after all fees, in all currencies, before the invoice is sent.
Robinhood
Robinhood Markets
⭐ 1.3 stars — Trustpilot as of May 2026
Account locked with no human to call
Accounts get restricted after routine transactions with no explanation. Reaching a live person takes 5+ hours. Accounts can be frozen for weeks while real money sits inaccessible. Users managing serious savings have no viable escalation path.
Opportunity
A trust layer for retail investing apps that surfaces regulatory actions, account freeze rates, and real customer service wait times before users deposit money.
Roblox
Roblox Corporation
⭐ 2.1 stars — Trustpilot as of May 2026
Child safety concerns with active regulatory investigations
The Louisiana AG sued Roblox calling it a perfect place for predators. The Georgia AG announced a civil investigation in February 2026. Parents report that moderation fails to catch grooming behaviour in real-time chat. The platform's scale makes manual moderation impossible and its AI moderation is documented as inconsistent.
Opportunity
A parental monitoring layer for Roblox and similar platforms that provides real-time visibility into who children are interacting with and flags pattern changes before parents discover problems weeks later.
Spotify
Spotify AB
⭐ 2.9 stars — Trustpilot as of May 2026
Price increases with no feature improvements
Spotify increased Premium prices by up to 18% in late 2025 across multiple markets. A March 2026 survey found 61% of users reported at least one major dissatisfaction in the past six months. Users paying more are receiving the same core product with no new features that justify the increase.
Opportunity
A music streaming service where a portion of the subscription fee is allocated directly to the specific artists the user listens to most, creating a transparent artist support mechanism within the existing subscription model.
Temu
Whaleco Technology
⭐ 2.2 stars — Trustpilot as of October 2025
Checkout price increases at the final step
Users report adding items at advertised prices only to see additional charges appear at checkout with no explanation. The total jumps before payment confirmation and if the user waits for clarification, item prices in the cart increase. This pattern is documented across hundreds of complaints.
Opportunity
A pre-purchase verification layer for ultra-low-cost shopping apps that surfaces community photos and complaint rates for specific product listings before checkout.
Tinder
Tinder
⭐ 1.7 stars — Trustpilot as of May 2026
Free tier is designed to frustrate into paying
The free tier's like limit, invisible swipe data, and inability to see who liked you is specifically designed to create enough frustration that users pay. The experience is not a generous free tier with paid enhancements. It is a deliberately degraded free tier that sells its own removal.
Opportunity
A dating app with a flat one-time fee for full access, no ongoing subscription, and algorithmic matching that does not degrade based on payment tier.
Uber Eats
Uber Technologies
⭐ 1.3 stars — Trustpilot as of May 2026
Refund policy changed and complaints no longer result in credits
Users report that after multiple refund requests for legitimate issues, Uber Eats flags the account and stops offering credits. There is no transparent policy about how many refunds are allowed. Customers with genuine repeated order issues are effectively penalised for complaining.
Opportunity
A consumer rights tool that tracks a user's delivery complaint history across platforms and advises when they are approaching the undisclosed refund limit so they can switch platforms before losing protection.
YouTube Kids
Google LLC
⭐ 2.8 stars — App Store as of May 2026
Inappropriate content still reaches children despite filtering
Videos that appear appropriate based on thumbnail and title contain content unsuitable for young children. The filtering system does not catch everything and algorithmic recommendations surface borderline content. Parents report discovering disturbing videos their children watched without any warning from the platform.
Opportunity
A children's video platform where content is manually reviewed and approved rather than algorithmically filtered, trading catalogue depth for safety guarantees that parents can actually trust.
Adobe Acrobat Reader
Adobe Inc
⭐ 2.6 stars — Trustpilot as of May 2026
Basic PDF editing requires a subscription
Combining PDFs, editing text, and adding signatures all require Adobe Acrobat Pro at $19.99 per month. These are basic document operations that users expect to perform on their own files without an ongoing subscription. The free reader is deliberately limited to create subscription pressure.
Opportunity
A PDF tool that charges a reasonable one-time fee for full editing capability rather than a monthly subscription, targeting the large segment of users who need to edit PDFs occasionally rather than professionally.
Apple News
Apple
⭐ 3.1 stars — App Store as of May 2026
Paywalls for content selected by the algorithm
Apple News surfaces articles from premium publications behind paywalls as if they are freely readable. Users click through from a headline that appears in their feed and hit a subscription wall for a publication they do not subscribe to. The feed does not indicate which content requires additional payment before the click.
Opportunity
A news aggregator that shows paywall status before the headline rather than after the click, and provides explicit controls for perspective diversification that the user can see and adjust.
BeReal
BeReal SAS
⭐ 2.8 stars — App Store as of May 2026
Notification timing is incompatible with real life
The two-minute authenticity window triggered by the daily notification arrives at times when users cannot post authentically, during meetings, while driving, or while asleep in different time zones. The core mechanic breaks in situations the app's own users predictably encounter every day.
Opportunity
The authentic social sharing problem is real and unsolved. BeReal identified a genuine user desire but the specific mechanic did not sustain engagement. The opportunity for a format that delivers authenticity without the two-minute pressure window remains open.
Calm
Calm.com
⭐ 2.8 stars — Trustpilot as of May 2026
Almost everything requires a paid subscription
The free tier is a preview that ends after a few sessions. Users who downloaded the app for anxiety or sleep support discover the content they need costs $69.99 per year. The people who most need mental wellness support are often the ones least able to pay premium subscription prices.
Opportunity
A mental wellness app where the crisis-relevant content, sleep, anxiety, acute stress, is genuinely free and the premium tier adds depth rather than gating basic functionality.
Depop
Depop
⭐ 2.6 stars — Trustpilot as of May 2026
Buyer protection disputes resolved in seller's favour
Buyers who receive items significantly different from the listing description report that dispute resolution consistently sides with sellers. Cases are closed without thorough investigation. The platform's financial interest in completed transactions creates a structural bias against buyers.
Opportunity
A secondhand fashion marketplace that surfaces authentic vintage and pre-loved items through community curation rather than algorithmic promotion and paid placement.
Duolingo
Duolingo
⭐ 3.8 stars — App Store as of May 2026
Streak mechanics punish real life
The streak system that made Duolingo famous has become its most resented feature. Missing one day resets a streak built over months. The anxiety around maintaining streaks drives users to do the minimum possible lesson rather than the most educational one. The gamification optimises for daily opens not for language learning.
Opportunity
A language learning app where the progression system is built around conversational milestones rather than daily streaks, measuring whether you can actually speak rather than whether you opened the app.
Google Maps
Google LLC
⭐ 3.8 stars — App Store as of May 2026
Business listings show incorrect hours and phone numbers
Users arrive at businesses that Google Maps shows as open to find them closed, having incorrect hours, or permanently closed with no update on the map. Businesses cannot always keep their own listings accurate and the crowdsourced correction system is slow. The navigation was correct but the destination information was wrong.
Opportunity
A business information verification layer that confirms hours, closures, and contact details in real time from multiple sources before showing them to users navigating to that location.
Headspace
Headspace
⭐ 2.4 stars — Trustpilot as of May 2026
Merger with Noom degraded the product
After Headspace merged with Noom in 2021, users report a shift in the app's focus toward weight and dieting content that feels at odds with the meditation-first positioning. Original long-term users describe the product they paid for changing into something different without asking.
Opportunity
A meditation app that maintains product focus rather than expanding into adjacent wellness categories, giving long-term subscribers stability in what they are paying for.
Hole.io
Voodoo
⭐ 3.9 stars — App Store as of May 2026
Ad frequency destroyed an originally fun game
Ads interrupt gameplay every 30 seconds including mid-level. The $10 ad removal fee is widely considered excessive for a casual game. Players who found the original two-minute eat-everything format genuinely enjoyable describe the current ad-interrupted version as unrecognisable from what they downloaded.
Opportunity
A casual mobile game publisher that commits to a fixed ad cadence disclosed at download, never inserting ads mid-level, and pricing ad removal at under $2 to match the casual game value proposition.
Hotels.com
Hotels.com LP
⭐ 2.2 stars — Trustpilot as of May 2026
Rewards programme discontinued without equivalent replacement
Hotels.com's long-running buy-10-nights-get-1-free programme was discontinued in 2023. Loyal customers who had accumulated significant rewards lost them without adequate notice or equivalent compensation. The replacement programme offers significantly worse value.
Opportunity
A hotel booking platform that shows fully loaded prices including resort fees and taxes in search results as the default display rather than as a checkout surprise.
Instacart
Maplebear Inc
⭐ 2.3 stars — Trustpilot as of May 2026
Shoppers substitute items without asking
When an item is out of stock, shoppers substitute whatever is closest without confirming with the customer. Customers order specific products for dietary, allergy, or preference reasons and receive substitutions that do not meet their needs. Contacting the shopper during the shop is unreliable.
Opportunity
A grocery delivery price transparency tool that shows the true all-in cost of an Instacart order including markups, fees, and tip before a customer invests time building a cart.
Notion
Notion Labs
⭐ 3.4 stars — App Store as of May 2026
Mobile app is too slow to replace desktop
The iOS app loads databases and complex pages significantly slower than the desktop version. Users who built their workflow around Notion find the mobile experience frustrating enough that they maintain separate simpler tools for mobile capture and sync back to Notion manually.
Opportunity
A Notion alternative with opinionated templates that work out of the box for common use cases, requiring no structural setup from the user to start being productive.
Royal Match
Dream Games
⭐ 4.4 stars — App Store as of May 2026
Difficulty spike at specific levels gates progress behind purchases
Multiple specific levels are documented by the player community as artificially difficult, requiring significantly more moves than surrounding levels and designed to exhaust power-ups. The spikes are consistent enough that players have mapped them. They function as monetisation checkpoints disguised as difficulty progression.
Opportunity
Royal Match is the most restrained major casual game in its category. Its complaints are mild compared to competitors. Study its monetisation model as a benchmark for what better looks like in mobile gaming.
Strava
Strava Inc
⭐ 3.3 stars — App Store as of May 2026
Core features moved behind subscription over time
Features that were free when users built their Strava habit, route planning, segment analysis, training load, heart rate analysis, have been moved to Strava Summit or the current subscription tier. Users who built years of activity history on Strava feel trapped paying for access to their own data.
Opportunity
A fitness tracking platform that provides permanent access to all features for activity types the user has historically tracked, with subscription applied only to new feature categories rather than retroactively gating existing functionality.
Threads
⭐ 3.2 stars — App Store as of May 2026
Algorithm shows content from accounts you do not follow
The default feed on Threads is algorithmic and surfaces content from accounts the user has never interacted with. Users who want to see only posts from accounts they chose to follow have to manually switch to the following feed every session. The app resets to algorithmic on next open.
Opportunity
A social network that gives users permanent and persistent control over their feed algorithm, saving the preference without resetting it on each session.
Truecaller
True Software Scandinavia AB
⭐ 2.4 stars — App Store as of May 2026
Uploads your entire contacts list without clear disclosure
Truecaller's spam identification relies on uploading your contacts to their database. This means every person in your contacts list has their phone number added to Truecaller's database without their knowledge or consent. The privacy implications of this architecture are not clearly disclosed at onboarding.
Opportunity
A spam call identification service that works through carrier-level data rather than uploading user contact lists, providing the same protection without the privacy cost.
Whatnot
Whatnot
⭐ 3.2 stars — App Store as of May 2026
Live auction FOMO mechanics drive impulsive spending
The live auction format with countdown timers, social proof from other bidders, and hosts creating urgency is effective at driving purchases that buyers regret. The gap between the excitement of winning a bid and the reality of what arrived and what it cost is documented extensively in reviews.
Opportunity
A live commerce platform with independent item authentication built into the purchase flow rather than as an optional add-on after the sale.