Comparison

Contex.st vs DahongMemo

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

Head to head
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!

About

DahongMemo

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Write down a thought and find it when you need it. DahongMemo keeps notes simple, with folders, tags, and search across your memo text, folders, and tags. No separate account, ads, or third-party tracking. Your memos stay on your device by default. WRITE WITHOUT THE SETUP • Start with one flexible memo body—no title required • Keep a draft safe while you choose a folder and multiple tags • Read, edit, favorite, and move memos; undo accidental deletions FIND WHAT YOU SAVED • Search memo text, folders, and tags together • Narrow results with folder and tag filters • Return to your search context after opening a result • Revisit favorites and recent memos from Home MAKE THE SPACE YOURS • Organize with the default folder and your own folders • Lock folders with device authentication • Create and manage colored tags • Choose Dahong, Peach, Sky, or Lavender in Light, Dark, or System appearance • Cycle through favorite memos in Medium and Large Home Screen widgets ON YOUR DEVICE, WITH OPTIONAL iCloud SYNC Your memos are stored on your device by default. If you choose to enable iCloud, your memos, folders, tags, and favorites can sync through your private iCloud account. The developer does not operate a memo server. Keep up to 50 memos for free. An optional one-time purchase removes this limit. Existing memos, editing, search, folders, tags, themes, widgets, and iCloud remain available without purchase.

Screenshots

Contex.st4 screens
DahongMemo4 screens

Verdict

The call

The clearest difference is in-app purchases: Contex.st at none against DahongMemo's 1. DahongMemo's advantage is update cadence (every 2 weeks vs every 4 weeks). On price, ads, device support and iOS requirement 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. DahongMemo sells 1 one-off in-app purchase. Contex.st asks for nothing beyond the download.

UpkeepUpdate frequency

Contex.st ships an update every 4 weeks, DahongMemo every 2 weeks. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 4 level
Contex.st versus DahongMemo: the parameters behind the verdict, then further details
ParameterContex.stDahongMemo
PriceFreeFree
Update frequencyEvery 4 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS18.4 — better18.6
Further details — not scored
Size128 MB8 MB
Age rating4+4+
DeveloperMemetic Research Laboratories LLCYoungWon Studio

In-app purchases

None

Contex.st

No in-app purchases

1 purchases

DahongMemo

One-time1
  • Unlimited Memos$1.99

Questions

Is Contex.st free?
Contex.st is free to download, with no in-app purchases.
Is DahongMemo free?
DahongMemo is free to download, with in-app purchases available.
Do Contex.st or DahongMemo have ads?
Neither Contex.st nor DahongMemo shows ads.
Which is updated more often, Contex.st or DahongMemo?
Contex.st ships an update every 4 weeks, and DahongMemo every 2 weeks. Most recently, Contex.st was updated on October 30, 2026 and DahongMemo on November 6, 2026.

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