Cognity vs ReadKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cognity
This AI-powered note-taking app helps you capture, connect, and organize your thoughts effortlessly. It features semantic search, an interactive knowledge graph, and smart collections for seamless organization across all your devices.
- AI-powered note organization
- Search by meaning
- Interactive knowledge graph
- Smart collections
- Cross-device sync
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Your Smarter Way to Take Notes. Say goodbye to scattered ideas and hello to clarity. Cognity is a revolutionary AI-powered note-taking app that helps you capture, connect, and organize your thoughts effortlessly. Whether you're brainstorming, studying, or managing projects, Cognity is your thinking partner. Why Choose Cognity? Search by meaning: Forget about exact wording—focus on your ideas instead. Search by meaning to find what you need instantly. Interactive Knowledge Graph: Watch your ideas come to life. Our AI connects your notes into a dynamic knowledge graph, so you can see how your thoughts interlink—all without lifting a finger. Smart Collections: Let AI organize your notes into categories, making it easy to find what you need, when you need it. Sync Across Devices: Access your notes anytime, anywhere—on your phone, tablet, or computer. Perfect For: - Students looking to organize lecture notes and study smarter. - Professionals managing projects or brainstorming big ideas. - Writers or researchers exploring new connections in their work. - Anyone who wants to de-clutter their mind and streamline their productivity
ReadKey
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ReadKey turns reading into a simple rule. Instead of relying on willpower, ReadKey helps you reduce distractions by temporarily restricting access to selected apps on your device. You choose what to lock. You decide when to focus. Add any book by searching its title or ISBN. Log the pages you read. Convert your reading progress into scrolling minutes. Use those minutes to unlock access to distracting apps. ReadKey transforms reading into a clear exchange: pages read → scrolling earned. Build a streak, stay consistent, and make reading part of your daily routine. ReadKey is built for people who want fewer distractions and a stronger reading habit. Features: • Block selected apps using Screen Time integration • Add books by title or ISBN • Log pages you read • Convert reading pages into scrolling minutes • Unlock apps through reading progress • Track your reading streak • Clean, minimal design • Built with privacy in mind No ads. No tracking. Just focus.
Screenshots
Verdict
The clearest difference is update cadence: Cognity at fortnightly against ReadKey's every 6 weeks. Cognity also leads on device support (3 vs 1) and iOS requirement (13.4 vs 17.0.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cognity ships an update fortnightly, ReadKey every 6 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | Cognity | ReadKey |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.4 — better | 17.0.0 |
| Further details — not scored | ||
| Size | 36 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Daviti Muchiashvili | Igor Filiuk |
In-app purchases
Cognity
No in-app purchases
ReadKey
No in-app purchases









