Synap.ing vs Cortis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synap.ing
Organize your thoughts, decisions, and patterns into a dynamic knowledge graph. Search by meaning, visualize connections in 3D, and gain insights with AI. Capture information seamlessly from any app or device.
- Living knowledge graph
- AI chat with multiple models
- 3D interactive knowledge visualization
- Semantic search by meaning
- AI blind spot detection
- Cognitive archetype discovery
- Home screen widgets
Read full descriptionHide full description
Synap is your memory, externalized. Everything you know, carried outside your head, connected, and yours. Your mind was never meant to hold all of this. Keep a thought in Synap and it stays exactly as you wrote it, on the day you wrote it. Synap connects it to what you already kept, on its own. Nothing to file, nothing to tag. Ask for it back in your own words and the answer comes from your own entries, each one cited. Synap works with or without AI. Keeping, search and the record all run on your iPhone. Bring an assistant when you want one, or do not. Either way the record is yours, on your own device. KEEP ANYTHING, IN SECONDS Type it, say it, share it from any app, or speak it into your Apple Watch. Workouts you record with Apple Watch or any app that saves to Health land in your memory on their own, route included. FIND IT BY MEANING Search understands what you meant, not just the words you used. It runs on your phone, so it works with no signal. ASK YOUR OWN MEMORY Ask a question and get an answer drawn from your own entries, with the exact entries it came from. Use Apple Intelligence on a supported iPhone, sign in with your Claude account, or connect ChatGPT or Gemini. Your entries stay on your phone until you ask. SEE WHAT YOU MISSED Insights reads across everything you kept and shows the patterns, the contradictions and the blind spots. Reflect shows the shape of a season of your thinking. Open the whole record as a map you can move through. BRING WHAT YOU ALREADY HAVE Import your ChatGPT and Claude history and it becomes part of the record the moment it lands. ON YOUR HOME SCREEN AND YOUR WRIST Widgets for today, the record, recent entries and your body. Live Activities while something is being kept. A watch app that leads with one Speak button. PRIVATE BY DESIGN Synap is local first. Your entries, your search and your voice transcription run on your device. Cloud sync is optional and off until you turn it on. Names can be hidden before anything is sent to an AI you connect. FREE Keeping, search and the record on your phone, import of your ChatGPT, Claude and Obsidian history, new entries connected to what you already kept, and a cloud account with sync for up to 1,500 entries. PRO Chat that draws on your whole memory. Patterns, contradictions and blind spots, read for you. An evening digest of what was kept and what connected. Sync in the background, even with the app closed. No cap on what you keep. Know more. Carry less. Terms of Use: https://synap.ing/terms Privacy Policy: https://synap.ing/privacy
Cortis
This app provides an on-device AI chatbot that functions entirely offline, requiring no internet connection or account. It integrates with Siri and Shortcuts for hands-free use and automations, and can analyze images locally. The free version offers extensive features, with an optional Pro upgrade for more models and advanced capabilities.
- On-device AI processing
- Offline functionality
- Siri integration
- Shortcuts automation
- Image analysis
- Multiple AI models
- No ads or tracking
Read full descriptionHide full description
AI chat that runs on your phone. Cortis runs language models directly on your iPhone. Once a model is downloaded, chats work without an internet connection, and you don't need an account to start. WHAT YOU GET • Chat without a connection once a model is downloaded: the model runs on your device • No account needed • Ask about a photo with a vision model • Choose the model that fits your phone: smaller models are fast and light, larger ones give stronger answers FREE PLAN AND PRO Cortis has a free plan with smaller models. Cortis Pro unlocks larger models and the performance view. Pro is offered as a weekly subscription (with a free trial when you are eligible), an annual subscription, or a one-time lifetime purchase. Prices are shown in the app before you buy and may vary by country. Weekly and annual subscriptions renew automatically unless you cancel at least 24 hours before the end of the current period. Payment is charged to your Apple ID at confirmation of purchase (or when a free trial ends). Manage or cancel in your Apple ID account settings. Any unused part of a free trial is forfeited when you buy a subscription. Terms of Use: https://neron.app/products/cortis/terms Privacy Policy: https://neron.app/products/cortis/privacy
Screenshots
Verdict
The clearest difference is rating: Synap.ing at 5.0 against Cortis's 1.0. Synap.ing also leads on update cadence (every 2 days vs weekly). Cortis's advantage is iOS requirement (16.0 vs 26.0). On price, ratings volume, 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. Synap.ing sells 2 in-app purchases, starting at $19.99 per month and Cortis sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Synap.ing holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Synap.ing ships an update every 2 days, Cortis weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Synap.ing | Cortis |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 177 MB | 79 MB |
| Age rating | 4+ | 12+ |
| Developer | Robb Dixon | Batuhan Ayhan |
Customer experience
Synap.ing
Cortis
In-app purchases
Synap.ing
- Synap Pro Monthly$19.991 Month
- Synap Pro Yearly$199.991 Year
Cortis
- Cortis Pro Monthly7 Days trial$2.991 Month
- Cortis Pro Weekly3 Days trial$4.997 Days
- Cortis Pro Annual7 Days trial$9.991 Year
Show 1 moreShow fewer
- Cortis Pro Annual3 Days trial$29.991 Year
- Cortis Pro$14.99
- Cortis Pro Lifetime$49.99









