Cortex vs OffNote AI
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Cortex
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Cortex is your private, on-device AI planner for daily work and life. Use Cortex to understand your calendar, spot conflicts, and turn plans into action quickly. Key features: โข Calendar-aware dashboard with priority signals โข Chat that can summarize your schedule and create events โข Smart insights and proactive recommendations โข Image-aware chat support โข Local-first AI processing for privacy โข Notification nudges and quiet hours controls Cortex is built to help you stay focused without sending your planning data to external AI services.
OffNote AI
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OffNote AI turns your notes into a private knowledge base you can actually talk to. Write a memo, and OffNote AI quietly extracts the facts. Later, ask a question in plain language โ who did I meet last Tuesday? what was that restaurant recommendation? โ and get a direct answer from your own notes. Everything runs on your device. No data is sent to any server. No account required. HOW IT WORKS OffNote AI downloads a small AI model to your phone during setup. After that one-time download, it works completely offline. Your notes never leave your device โ not even to generate answers. KEY FEATURES - Write and search notes with a clean, fast interface - AI automatically extracts key facts when you save - Chat with your notes: ask questions in natural language - Focus mode: ask about one specific note in depth - Conversation history across multiple chat sessions - Fully offline after the initial model download - No account, no subscription, no cloud storage - Choose from multiple on-device AI models in Settings WHY OFFNOTE AI? Most AI apps send your notes to a remote server to generate answers. OffNote AI runs the model locally, so your personal thoughts, plans, and records stay yours โ always.
Screenshots
Verdict
The clearest difference is device support: Cortex at 2 against OffNote AI's โ. OffNote AI's advantage is iOS requirement (15.1 vs 17.0). On price and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Cortex | OffNote AI |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | โ |
| In-app purchases | No | No |
| Devices | iPhone, iPad โ better | โ |
| Requires iOS | 17.0 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 7 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Pratik Poudel | Wonbin Kim |
In-app purchases
Cortex
No in-app purchases
OffNote AI
No in-app purchases









