Comparison

DeviceAI vs PDF Editor for iPhone

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

Head to head
About

DeviceAI

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Run powerful AI models entirely on your iPhone โ€” no internet, no subscriptions, no data sharing. DeviceAI is a privacy-first chat app that runs large language models (LLMs) completely on your device using Apple's Metal GPU acceleration. Your conversations never leave your phone. KEY FEATURES โ€ข 100% On-Device Processing โ€” All AI inference happens locally. Zero cloud dependency. โ€ข 60+ Open-Source Models โ€” Choose from Llama, Qwen, Phi, Mistral, DeepSeek and more โ€ข Full Privacy โ€” No data collection, no analytics, no telemetry. Your chats stay on your device. โ€ข Offline-First โ€” Works perfectly without internet after model download โ€ข Streaming Responses โ€” See AI responses appear in real-time โ€ข Reasoning Models โ€” Support for advanced thinking models like DeepSeek R1 โ€ข Markdown & Code โ€” Beautiful formatting with syntax highlighting โ€ข Customizable โ€” Adjust system prompts, temperature, and generation parameters โ€ข Conversation History โ€” All chats saved locally with Isar database PERFECT FOR โ€ข Privacy advocates who want AI without cloud exposure โ€ข Travelers and remote workers who need offline AI assistance โ€ข Developers testing open-source models โ€ข Students wanting unlimited, free AI tutoring โ€ข Anyone who values data sovereignty TECHNICAL DETAILS โ€ข Powered by llamadart (llama.cpp for Flutter) โ€ข Supports GGUF format models from HuggingFace โ€ข Metal GPU acceleration for fast inference (15-40 tokens/second) โ€ข Models range from 0.5B to 8B parameters โ€ข Requires iOS 16.0 or later Download models once, use forever. No subscriptions, no API keys, no compromises. Your data stays on your device. Always.

About

PDF Editor for iPhone

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Our application is a user-friendly PDF editor designed to help you edit, annotate, and manage PDF documents with ease. Whether you're working, studying, or handling everyday paperwork, our app provides convenient tools to make working with PDF files simpler and more efficient. Key Features - Add Text to PDFs โ€” insert text into your documents whenever needed. - Edit PDF Documents โ€” make changes to your files quickly and conveniently. - Highlight Important Details โ€” emphasize essential information for easy reference. - Fill Out PDF Forms โ€” complete digital forms and documents with ease. - Annotate Documents โ€” add notes, mark up pages, and highlight key sections. - Manage Your Files โ€” keep your PDF documents organized and accessible. - Quick Document Access โ€” open and work with your files whenever you need them. Designed for Everyday Use Our application is suitable for students, professionals, and anyone who regularly works with digital documents. Use it to manage contracts, complete forms, review reports, handle invoices, organize study materials, and work with important files. Our application helps you handle PDF documents more conveniently, stay organized, and get your work done with less effort. Subscription Information The app offers auto-renewable subscriptions and a one-time Lifetime purchase. Available options include: Weekly subscription โ€” $4.99 USD Monthly subscription โ€” $12.99 USD Yearly subscription โ€” $39.99 USD Lifetime purchase โ€” $59.99 USD Subscription payments are charged to your Apple ID account upon confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription at any time through your device settings. Privacy Policy: https://docs.google.com/document/d/1-AjgioupcQAID8g0rDThSbTt3VG4ha8PbID9HOPa9LY/edit?tab=t.0 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

DeviceAI4 screens
PDF Editor for iPhone4 screens

Verdict

The call

The clearest difference is price: PDF Editor for iPhone at Free against DeviceAI's $2.99. PDF Editor for iPhone also leads on device support (3 vs 1). DeviceAI's advantage is in-app purchases (none vs 5). On update cadence, ads and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

PDF Editor for iPhone is free to download; DeviceAI costs $2.99 up front. PDF Editor for iPhone sells 5 in-app purchases, starting at $4.99 per 7 days. DeviceAI asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard3 real differences ยท 3 level
DeviceAI versus PDF Editor for iPhone: the parameters behind the verdict, then further details
ParameterDeviceAIPDF Editor for iPhone
Price$2.99Free โ€” better
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS16.415.5 โ€” better
Further details โ€” not scored
Size34 MB107 MB
Age rating4+4+
DeveloperEvan YeohEXERCISE RX LLC

In-app purchases

None

DeviceAI

No in-app purchases

5 purchases

PDF Editor for iPhone

Subscriptions4
  • Weekly-Trial3 Days trial$4.997 Days
  • Weekly$4.997 Days
  • Monthly$12.991 Month
Show 1 more
  • Yearly$39.991 Year
One-time1
  • Lifetime$59.99

Questions

Is DeviceAI free?
DeviceAI costs $2.99, with no in-app purchases.
Is PDF Editor for iPhone free?
PDF Editor for iPhone is free to download, with in-app purchases available.
Do DeviceAI or PDF Editor for iPhone have ads?
Neither DeviceAI nor PDF Editor for iPhone shows ads.
Which is updated more often, DeviceAI or PDF Editor for iPhone?
DeviceAI ships an update monthly, and PDF Editor for iPhone monthly. Most recently, DeviceAI was updated on October 25, 2026 and PDF Editor for iPhone on October 28, 2026.

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