SAN FRANCISCO, Oct. 15, 2025 -- In a unitQ analysis of more than 647,000 app store reviews across 5,043 iOS apps, our proprietary AI detected a 2.8% increase in quality issues — friction — reported by users in the three weeks following the iOS 26 release (Sep 15–Oct 6). That's a modest uptick compared with the dramatic spikes seen after iOS 16 and iOS 17, when user-reported quality issues jumped by double digits. Both iOS 18 and now iOS 26 have shown far more stability, evidence that developers are increasingly using real-time customer feedback to anticipate and address OS-level disruptions before users feel the impact.
The dataset
- Source: App Store reviews parsed and categorized by unitQ's proprietary AI
- Scope: 5,043 unique apps; 647,705 pieces of user feedback
- Window: Pre-release (Aug 25–Sep 14) vs post-release (Sep 15–Oct 6)
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Findings:
- Quality issues: 110,177 → 113,246 (+2.8%)
- Feature requests: 2,345 → 2,105 (↓ to 1.8% of total)
- Overall feedback volume: +2.5%
In raw terms, users reported slightly more friction after upgrading to iOS 26, but nowhere near the volatility of earlier updates like iOS 16 (+42%) and iOS 17 (+29%). The stability observed in iOS 18 (+3%) and now iOS 26 reflects how customer feedback-driven teams are catching and fixing regressions earlier in the rollout cycle. (*Apple jumped its OS version numbering from iOS 18 to iOS 26 this year.)
What users noticed most
- Crashes/force closes: +21.7%
- Slow performance: +23.4%
- Freezing: +33.1%
- Device not compatible: +28.9%
- Notifications not received: +24.7%
- Password not accepted: +41.8%
- Profile photo upload failures: +64.2%
Even as overall disruption was limited, these recurring stability issues show where OS-level changes continue to challenge developers. Minor regressions in login flows, notification delivery and media handling can quickly translate into thousands of frustrated users — and thousands of data points for AI to detect.
Impact by selected app category
unitQ AI detected varying impacts across verticals, revealing how different types of apps responded to the iOS 26 rollout. Some categories saw mild increases, while others remained steady or even improved—an indication that readiness levels and user expectations vary widely across industries.
- Gambling: +15.5% — Noticeable increases in login errors and payment flow instability, indicating that apps in highly regulated categories still face friction adapting to new OS-level security and compliance requirements.
- Business & Productivity: +14.6% — Users noted more login and sync-related friction, often tied to third-party integrations or updated permission frameworks.
- Music: +10.5% — Playback interruptions, missing lyrics and connection issues with smart speakers like Sonos and Alexa drove most of the increase.
- Dating: −5.7% — Minor declines in reported issues suggest stability improvements in core messaging and matching features.
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