Comparison

Cohestry vs Overtchat

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

Head to head
About

Cohestry

This app helps you organize notes and discover connections between them. It visualizes your thoughts in a 3D brain and resurfaces older ideas to prevent them from being forgotten. Create rich notes with various formatting options and import existing notes from Apple Notes.

Highlights
  • Visualize note connections in a 3D brain
  • Rediscover older notes with 'Worth Revisiting'
  • Daily insights based on existing notes
  • Rich note creation with formatting, images, and tables
  • Import Apple Notes on Mac
  • Native iPhone and Mac app
Features
Read full description

Cohestry is a second brain for people who want their notes to become more useful over time. Capture ideas, thoughts, references, and unfinished threads in one place, then let Cohestry help you see how they connect. Instead of leaving notes buried in folders, Cohestry turns your knowledge into something you can explore, revisit, and build on. EXPLORE YOUR THINKING Cohestry visualizes connections between your notes as an interactive 3D brain, making it easier to spot related ideas and understand how your thinking is developing. REDISCOVER WHAT MATTERS Worth Revisiting brings older notes back into view so useful ideas do not disappear into an archive. Today’s Insight surfaces a connection from your existing notes, giving you a reason to return to ideas you may have forgotten. WRITE WITHOUT FRICTION Create and edit rich notes with support for formatting, lists, tables, images, and more. Cohestry is designed to work as a complete notes app, not just a layer on top of one. BRING YOUR APPLE NOTES WITH YOU On Mac, import your existing Apple Notes and start building from the knowledge you already have. BUILT FOR APPLE Cohestry is a native iPhone and Mac app designed around a simple idea: your notes should become more valuable the longer you keep them. Core note-taking features are free, including unlimited notes and Apple Notes imports. Advanced connection features are available with Cohestry Pro. End user license agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Overtchat

Features
Read full description

Your models. Your conversations. Your server. OvertChat connects your iPhone and iPad to an OvertChat server you choose. Chat with local or hosted AI models, keep conversations organized, and pick up your work across devices. A PLACE TO THINK • Stream responses as they arrive, with readable formatting and code blocks. • Organize conversations into projects and search your history. • Attach photos and documents for models that support them. • Use light or dark appearance and adjust your chat preferences. YOUR SERVER, YOUR MODELS Your server administrator chooses the model providers and optional services. Connect to local inference servers or hosted providers through the same app. Chats, projects, and uploaded files are stored on your configured server. MORE WHEN YOUR SERVER SUPPORTS IT Use web search, voice dictation, and spoken responses when the corresponding services are configured. Agent Connections lets you follow coding-agent sessions and respond to approvals through an OvertChat Host Connector on your own infrastructure. GETTING STARTED You need a compatible OvertChat server URL and an account created by its administrator. Enter the server address, sign in, and start a conversation. The app does not include a hosted AI service or run language models on your device. Available features and model capabilities depend on your server configuration. An internet or local-network connection to your server is required. OvertChat is free and open source. There are no in-app purchases or advertisements. Your hosting and any third-party model provider charges are separate. Learn more and find setup instructions at overtchat.com.

Screenshots

Cohestry4 screens
Overtchat2 screens

Verdict

The call

The clearest difference is in-app purchases: Overtchat at none against Cohestry's 3. Overtchat also leads on update cadence (every 2 days vs weekly) and iOS requirement (16.4 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cohestry sells 3 in-app purchases, starting at $5.99 per month. Overtchat asks for nothing beyond the download.

UpkeepUpdate frequency

Cohestry ships an update weekly, Overtchat every 2 days. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 6 level
Cohestry versus Overtchat: the parameters behind the verdict, then further details
ParameterCohestryOvertchat
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.016.4 — better
Further details — not scored
Size16 MB79 MB
Age rating4+12+
DeveloperUgochukwu NwuneSwamita Gupta

In-app purchases

3 purchases

Cohestry

Subscriptions2
  • Cohestry Pro Monthly7 Days trial$5.991 Month
  • Cohestry Pro Annual7 Days trial$39.991 Year
One-time1
  • Cohestry Pro Lifetime$99.99
None

Overtchat

No in-app purchases

Questions

Is Cohestry free?
Cohestry is free to download, with in-app purchases available.
Is Overtchat free?
Overtchat is free to download, with no in-app purchases.
Do Cohestry or Overtchat have ads?
Neither Cohestry nor Overtchat shows ads.
Which is updated more often, Cohestry or Overtchat?
Cohestry ships an update weekly, and Overtchat every 2 days. Most recently, Cohestry was updated on October 26, 2026 and Overtchat on October 29, 2026.

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