Cortex vs TextDeck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cortex
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Cortex reads your images, documents, and text — entirely on your device. No cloud. No account. No data sent anywhere. After a one-time model download, it works with no internet connection at all. Built for professionals who can't hand their confidential work to a cloud service, Cortex gives you the full power of a modern AI without the data exposure. No terms of service that claim rights to your inputs. No server logs. No risk of a breach leaking your client's name. Key features: - Voice mode — speak naturally, get spoken replies. Fully on-device, nothing stored - Audio & video input — attach media files and ask questions about them - Image & document input — analyse photos, contracts, receipts, prescriptions and more - Fully offline after model download — works on a plane, in a courthouse, anywhere - Zero data collection — nothing is ever transmitted or stored outside your device - 43 supported languages — switch freely between languages in any conversation - One-time purchase — no monthly subscription, no usage limits after going Pro - Free tier included — 25 messages per day at no cost, upgrade whenever you're ready - GDPR-friendly — no data transfers to US servers or third parties Cortex runs a powerful on-device language model entirely on your hardware, giving you conversational AI that's fast and capable without any cloud dependency. Download free and try it today. Upgrade once — use it forever.
TextDeck
Streamline your typing with reusable text templates and AI-powered prompt enhancement. Create custom snippets with fill-in blanks that paste directly into any app. All processing happens on-device for maximum privacy and offline functionality.
- Reusable text snippets with fill-in blanks
- On-device AI for prompt improvement and placeholder suggestions
- Global hotkey for instant access
- Frecency sorting for frequently used templates
- Community prompt library with offline access
- iCloud sync across Apple devices
- 100% local processing and privacy
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The text you retype, one shortcut away. TextDeck keeps your snippets, replies and AI prompts as reusable templates with fill-in blanks — hit the shortcut, fill the blanks, and it pastes straight into the app you came from. HOW IT WORKS Create a snippet like: "Write a {{Tone}} email to {{Recipient}} about {{Topic}}" — then just fill in the blanks each time. One tap copies or pastes the finished text. Done. ON-DEVICE AI - Improve any prompt with one tap — Apple Intelligence rewrites, shortens, or sharpens it - Paste raw text and let AI suggest reusable {{placeholders}} — you choose which to keep - Runs entirely on your device. Nothing is sent to any server. No account, no API key - Requires a device with Apple Intelligence (iOS 26 / macOS 26 or later) INSTANT ACCESS - Global hotkey opens TextDeck instantly from any app - Frecency sorting puts your most-used templates at the top - Search across all templates and categories in seconds GLOBAL PROMPT LIBRARY - Browse and install free community prompt packs - Works offline and updates automatically - Open source — anyone can contribute on GitHub - Organize everything into your own categories and collections ALWAYS FREE - No subscription, no in-app purchases, no ads — ever - Free, and it stays free SYNC & PRIVACY - iCloud sync keeps your templates on all your Apple devices - 100% local — no accounts, no tracking, no analytics - AI runs on-device — no third-party AI services - Your data never leaves your device unless you enable iCloud Works on Mac, iPad and iPhone. Build your text library once, use it everywhere you type. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: TextDeck at none against Cortex's 1. TextDeck also leads on update cadence (every 9 days vs every 4 months). Cortex's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support 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. Cortex sells 1 one-off in-app purchase. TextDeck asks for nothing beyond the download.
Cortex ships an update every 4 months, TextDeck every 9 days. The most recent releases landed on September 14, 2026 and September 27, 2026 respectively.
| Parameter | Cortex | TextDeck |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 84 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Ippocode Technologies LLP | Jonas Hoettler |
In-app purchases
Cortex
- Cortex Pro$19.99
TextDeck
No in-app purchases








