Comparison

DEVONthink To Go 4 vs Contex.st

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

Head to head
About

DEVONthink To Go 4

Manage your entire knowledge library on your iPad and iPhone. Organize, edit, and annotate documents, notes, and more. Leverage generative AI for summaries, content creation, and advanced search. Syncs privately and securely across devices.

Highlights
  • Document organization and management
  • AI-powered summaries and content creation
  • PDF annotation and editing
  • On-device OCR for searchable documents
  • Cross-device secure synchronization
  • Custom metadata and tagging
  • Shortcuts automation
Features
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Your entire knowledge library. Always with you. Always private. DEVONthink To Go is your document repository when you're not at your Mac. Collect, organize, edit, and annotate. Use generative AI to work with your stored knowledge or create new documents. Automate with Shortcuts. Our time-tested technology keeps all your data in sync between your Mac, iPad, and iPhone, privately and securely. The professional document and information manager for iPad and iPhone. From DEVONtechnologies, driving innovation since 2002. - Students: Annotate research papers with AI-powered summaries - Teachers: Organize your materials, use AI to create handouts and tests - Researchers: Have your data with you in a robust, powerful knowledge manager - Lawyers: Keep all case files organized and encrypted Have your important documents with you at all times: - Never lose an important document again, keep everything organized - Store PDFs, notes, images, bookmarks, just about any type - File your documents in groups, even more than one group at a time - Use tags, mark documents with flags or as unread, give them a star rating - Versioning lets you return to a previous state of a document - Revision-proof databases prevent edits to documents with special requirements - Sync your data between Macs, iPads, and iPhones, securely and privately Work with your documents: - Edit texts, Markdown files, or rich text documents - Annotate and edit PDFs with common tools - Make scans, scanned PDFs, or images searchable with the built-in, on-device OCR - Add custom, searchable metadata fields to enrich your documents Use generative AI: - Work with your favorite provider and model - Chat with your documents, analyze or summarize them - Transform text or extract text from images and even handwritten notes - Create new images from your data - Find documents using natural language with the AI-powered search assistant - Let the AI make order from chaos, rename documents, add tags, or label or rate them DEVONthink To Go is well-integrated with other apps: - Link to your documents from other apps with universal links - Access all your documents also through the Files app - Clip data from almost any app with the Clip to DEVONthink extension - Use drag-and-drop, inside DEVONthink To Go or between apps - Automate repetitive tasks with Shortcuts actions DEVONthink To Go is great standalone but also works perfectly with DEVONthink for Mac and across multiple devices. Synchronize your databases securely and privately over the local network or through a cloud service of your choice. You decide what data is synced, when, and where. Strong encryption makes sure that your data belongs to you, not to your service provider or us. Privacy policy: https://www.devontechnologies.com/r/privacy End user license agreement: https://www.devontechnologies.com/r/eula

About

Contex.st

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TRANSFORM ANY CONTENT INTO YOUR INTELLIGENT KNOWLEDGE BASE Contex.st is the revolutionary AI-powered app that captures, summarizes, and organizes your digital content while letting you chat with your entire document collection. The only knowledge management app with built-in Nostr integration for decentralized sharing. KEY FEATURES Universal Content Capture • Save from Safari, Photos, Files, and ANY iOS app via Share Extension • Smart OCR extracts text from images and PDFs automatically • Clean web article extraction without ads or clutter • Batch processing for multiple items at once AI-Powered Intelligence • Chat with your entire document collection using advanced AI • Get contextual answers with source citations • Automatic summarization of any content • Smart keyword extraction and categorization • Entity recognition for people, places, organizations Powerful Search & Organization • Semantic search finds content by meaning, not just keywords • Vector search discovers related documents automatically • Smart collections that organize content intelligently • Advanced filtering by content type, date, and entities • Tag-based organization with AI suggestions Decentralized Sharing via Nostr • Share insights on censorship-resistant networks • Multiple cryptographic identity support • Connect to custom relay networks • True content ownership - no corporate control Privacy & Control • Your data stays on your device with iCloud sync • Choose your preferred AI providers • No tracking or data harvesting • End-to-end encryption for sensitive content PERFECT FOR: • Researchers building comprehensive knowledge bases • Students organizing study materials and papers • Professionals tracking industry insights and trends • Content creators gathering inspiration and sources • Anyone building a "second brain" for better productivity WHY CONTEX.ST? Unlike other document apps, Contex.st combines powerful AI capabilities with true data ownership. Chat with your documents using cutting-edge AI, organize with intelligent automation, and share your insights on decentralized networks - all while maintaining complete control over your information. Your digital memory, intelligently organized, truly yours. Download now and revolutionize how you capture, understand, and share knowledge!

Screenshots

DEVONthink To Go 44 screens
Contex.st4 screens

Verdict

The call

The clearest difference is in-app purchases: Contex.st at none against DEVONthink To Go 4's 2. Contex.st also leads on iOS requirement (18.4 vs 26.0). On price, update cadence, 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. DEVONthink To Go 4 sells 2 in-app purchases, starting at $2.99 per month. Contex.st asks for nothing beyond the download.

UpkeepUpdate frequency

DEVONthink To Go 4 ships an update every 3 weeks, Contex.st every 4 weeks. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
DEVONthink To Go 4 versus Contex.st: the parameters behind the verdict, then further details
ParameterDEVONthink To Go 4Contex.st
PriceFreeFree
Rating4.7 (226 ratings) — better—
Positive reviews42.9% of reviews—
Number of ratings226 — better—
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.018.4 — better
Further details — not scored
Size191 MB128 MB
Age rating17+4+
DeveloperDEVONtechnologies, LLCMemetic Research Laboratories LLC

In-app purchases

2 purchases

DEVONthink To Go 4

Subscriptions2
  • Monthly1 Month trial$2.991 Month
  • Yearly1 Month trial$19.991 Year
None

Contex.st

No in-app purchases

Questions

Is DEVONthink To Go 4 free?
DEVONthink To Go 4 is free to download, with in-app purchases available.
Is Contex.st free?
Contex.st is free to download, with no in-app purchases.
Do DEVONthink To Go 4 or Contex.st have ads?
Neither DEVONthink To Go 4 nor Contex.st shows ads.
Which is updated more often, DEVONthink To Go 4 or Contex.st?
DEVONthink To Go 4 ships an update every 3 weeks, and Contex.st every 4 weeks. Most recently, DEVONthink To Go 4 was updated on September 23, 2026 and Contex.st on September 13, 2026.

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