Contex.st vs PPQ
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
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!
PPQ
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PPQ gives you every leading AI model in one app ā and you only pay for what you actually use. No subscription. No monthly fee. Just add credits and ask. ONE APP, EVERY TOP MODEL Switch between the latest models from OpenAI, Anthropic, Google and more, all in a single conversation. Pick the right model for the job ā a quick answer, deep reasoning, or creative writing ā and never juggle multiple apps or subscriptions again. PAY PER QUERY, NOT PER MONTH Most AI apps lock the best models behind a $20/month subscription whether you use them once or a thousand times. PPQ is different: top up a balance and pay only for the queries you make. Light user? Spend a few cents. Power user? You're still in control of every credit. ASK WITH YOUR VOICE Tap the mic and just talk. PPQ transcribes your voice and answers instantly ā perfect for asking on the go, hands-free. ASK ABOUT ANYTHING YOU SEE Snap a photo or attach one from your library and ask about it. Translate a menu, solve a problem on the whiteboard, identify an object, or get feedback on your work. CREATE IMAGES AND VIDEO Generate images and video right inside your conversation. Describe what you want and watch it come to life. PRIVATE, ENCRYPTED CHATS For sensitive questions, choose an encrypted model. Your messages are sealed to a secure enclave so the server can't read them ā end-to-end privacy verified in hardware, on your device. YOUR HISTORY, SEARCHABLE Every conversation is saved and fully searchable ā find any past chat by title or by what was actually said inside it. SIGN IN WITH A PASSKEY No passwords to remember. Sign in securely with Face ID or Touch ID using a passkey. WHY PPQ ⢠All the top AI models in one place ⢠Pay only for what you use ā no subscription ⢠Voice, photo, and text input ⢠Image and video generation ⢠Private, hardware-encrypted chats ⢠Searchable conversation history ⢠Secure passkey login Download PPQ and get pay-per-query access to the world's best AI ā on your terms.
Screenshots
Verdict
The clearest difference is in-app purchases: Contex.st at none against PPQ's 4. PPQ's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (15.1 vs 18.4). On price, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. PPQ sells 4 one-off in-app purchases. Contex.st asks for nothing beyond the download.
Contex.st ships an update every 4 weeks, PPQ weekly. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | Contex.st | PPQ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Weekly ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone | iPhone, iPod ā better |
| Requires iOS | 18.4 | 15.1 ā better |
| Further details ā not scored | ||
| Size | 128 MB | 52 MB |
| Age rating | 4+ | 9+ |
| Developer | Memetic Research Laboratories LLC | New Caird Technologies, Inc. |
In-app purchases
Contex.st
No in-app purchases
PPQ
- $3.50 credits$4.99
- $7.00 credits$9.99
- $17.50 credits$24.99
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- $35.00 credits$49.99









