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App Store verdict · build
A note-taking app with transparent, permanent license management that prevents forced upgrades and respects one-time purchases without dark patterns
Built for Users who paid for perpetual licenses on productivity software (notes, docs, PDFs) and resent being coerced into subscriptions through forced version migrations.
The receipts — real demand
“我购买了goodnotes5永久，但是经常自动切换到Goodnotes6然后让我重新订阅”
7.1 / 10 · demand score
Pain 7
Willingness to pay 7
Specificity 8
Audience 6
Competition 2
Why this is a gap
Surfaced from a high-intensity complaint with clear willingness to pay and a specific, reachable audience.