Comparison

Zapptive vs Trelk

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

Head to head
About

Zapptive

This AI-powered learning assistant helps you master new topics and learn how to use AI tools. It features an AI chatbot with built-in tools for image creation, web search, and note analysis, along with a spaced repetition system for efficient review.

Highlights
  • AI Chatbot with built-in tools
  • Image creation and analysis
  • Web search integration
  • Spaced Repetition System
  • Organize notes with AI
  • Learn any subject faster
Features
Read full description

Unlock the Power of AI for Learning with Zapptive! Zapptive is your all-in-one AI-powered learning assistant that not only helps you master new topics, but also teaches you how to use AI tools. Key Features: • AI Chatbot with Built-in Tools Create images, analyze and edit them, search the web, explore your notes, and build review collections—all with an AI chatbot that explains each tool. • Review Collections Organize what you want to master into Review Collections and boost your retention with an integrated Spaced Repetition System. • Smart Notes Save important notes and ask the AI chatbot questions about them anytime, making learning personal and efficient. • Learn Anything, Faster Use cutting-edge AI to master new subjects, get help with writing, and deepen your understanding across any topic. Zapptive makes learning smarter, easier, and more interactive—whether you’re exploring AI for the first time or supercharging your study routine. Start your AI-powered learning journey with Zapptive today!

About

Trelk

Features
Read full description

Trelk is your personal knowledge engine. Save anything you read — articles, research papers, YouTube videos, PDFs, newsletters, documentation — and watch your understanding grow as AI reveals how everything connects. No subscriptions. No cloud dependency. No data lock-in. Buy once, own it forever. HOW IT WORKS Save content from any source: share a link, scan a QR code, import a PDF, or write your own notes in the built-in Markdown editor. Trelk's on-device AI reads, summarizes, and indexes everything locally. As your library grows, Trelk automatically discovers connections between ideas — surfacing relationships you'd never find on your own. YOUR PERSONAL KNOWLEDGE GRAPH Every piece of content becomes a node in your knowledge graph. Trelk maps conceptual links between articles, papers, and notes — visually showing how topics relate across your entire library. Watch isolated readings transform into an interconnected web of understanding. OPEN-SOURCE AI, ON YOUR DEVICE Trelk ships with open-source models from Hugging Face that run entirely on your phone. No API keys, no subscriptions, no data leaving your device. Want more power? Bring your own OpenAI or Anthropic key, or download any GGUF model directly from Hugging Face. ASK YOUR LIBRARY Ask questions and get answers grounded in what you've actually read. Hybrid retrieval — full-text search combined with semantic understanding — finds the most relevant content across your entire library. Every answer includes source citations linking back to your original items. FLASH REVIEW & SPACED REPETITION Knowledge fades without review. Trelk generates flash review questions from your content and uses spaced repetition to help you retain what matters. Track your retention score, review streaks, and topic performance over time. DAILY PULSE Start each day with an AI-generated synthesis of your recent saves — key themes, emerging patterns, and suggested connections. Your Pulse dashboard shows reading activity, content trends, and progress at a glance. COMMUNITY COLLECTIONS Browse curated collections assembled by the Trelk community. Import entire collections with one tap. Create and share your own. Build knowledge together. OPEN FORMATS, ZERO LOCK-IN Your notes are Markdown. Your database is SQLite. Export your entire library as CSV or JSON anytime. Full backup and restore of your database and all downloaded files. Every byte of your data is in a format any tool can read. BUILT FOR PRIVACY All AI processing happens on your device. Your data never leaves your phone. No accounts required. Sync is optional — choose Dropbox, Google Drive, OneDrive, or iCloud on your own terms. WORKS WITH EVERYTHING Save from Safari, Chrome, or any app via the share sheet. Upload PDFs, Word documents, and Markdown files. Supports articles, research papers, YouTube videos, newsletters, documentation, and personal notes. AVAILABLE IN 6 LANGUAGES English, Portuguese, Spanish, French, German, and Italian. Read more. Think deeper. Connect everything.

Screenshots

Zapptive3 screens
Trelk4 screens

Verdict

The call

The clearest difference is ads: Trelk at none against Zapptive's shown. Trelk also leads on update cadence (every 3 days vs every 2 weeks). Zapptive's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Zapptive ships an update every 2 weeks, Trelk every 3 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Zapptive versus Trelk: the parameters behind the verdict, then further details
ParameterZapptiveTrelk
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size27 MB43 MB
Age rating17+4+
DeveloperZamz Labs LLCNuno Fonseca

In-app purchases

None

Zapptive

No in-app purchases

None

Trelk

No in-app purchases

Questions

Is Zapptive free?
Zapptive is free to download, with no in-app purchases.
Is Trelk free?
Trelk is free to download, with no in-app purchases.
Do Zapptive or Trelk have ads?
Zapptive shows ads; Trelk does not.
Which is updated more often, Zapptive or Trelk?
Zapptive ships an update every 2 weeks, and Trelk every 3 days. Most recently, Zapptive was updated on November 4, 2026 and Trelk on November 5, 2026.

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