Comparison

Synap.ing vs Cortis

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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

About

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.

Highlights
  • On-device AI processing
  • Offline functionality
  • Siri integration
  • Shortcuts automation
  • Image analysis
  • Multiple AI models
  • No ads or tracking
Features
Read 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

Synap.ing4 screens
Cortis3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Synap.ing ships an update every 2 days, Cortis weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Synap.ing versus Cortis: the parameters behind the verdict, then further details
ParameterSynap.ingCortis
PriceFreeFree
Rating5.0 (2 ratings) — better1.0 (1 ratings)
Positive reviews—0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 2 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS26.016.0 — better
Further details — not scored
Size177 MB79 MB
Age rating4+12+
DeveloperRobb DixonBatuhan Ayhan

Customer experience

Synap.ing

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Cortis

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

2 purchases

Synap.ing

Subscriptions2
  • Synap Pro Monthly$19.991 Month
  • Synap Pro Yearly$199.991 Year
6 purchases

Cortis

Subscriptions4
  • 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 more
  • Cortis Pro Annual3 Days trial$29.991 Year
One-time2
  • Cortis Pro$14.99
  • Cortis Pro Lifetime$49.99

Questions

Is Synap.ing free?
Synap.ing is free to download, with in-app purchases available.
Is Cortis free?
Cortis is free to download, with in-app purchases available.
Which has better reviews, Synap.ing or Cortis?
Synap.ing is rated higher. Synap.ing averages 5.0 out of 5 from 2 ratings, while Cortis averages 1.0 from 1 ratings.
Do Synap.ing or Cortis have ads?
Neither Synap.ing nor Cortis shows ads.
Which is updated more often, Synap.ing or Cortis?
Synap.ing ships an update every 2 days, and Cortis weekly. Most recently, Synap.ing was updated on November 5, 2026 and Cortis on October 31, 2026.

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