Researchist vs AI PDF Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Researchist
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Researchist is the PDF reader designed for academic reading. Import a paper and it becomes more than a static document: references turn into links, every section gets an outline you can jump through,, and figures and tables are one tap away. READ WITHOUT FRICTION • A focused reading experience built for research papers • Open papers in tabs, or side by side in multiple windows • Highlight with Apple Pencil and attach notes • See all your highlights and notes together in one place, ready to review and share PAPER INTELLIGENCE (BETA) Researchist analyzes each paper using Apple Intelligence • Automatic table of contents, even for PDFs without one • A detailed outline under every heading: one line for what each passage does, linking straight back to it • Figures and tables extracted with their captions for quick reference • Title, authors, and metadata found automatically FOLLOW THE CITATION TRAIL • References and in-text citations are extracted and linked • Tap any citation to see the full reference without losing your place • See how often each work is cited throughout the paper • Jump from a reference to the linked paper with a single tap BUILD YOUR RESEARCH LIBRARY • Organize papers into collections • Personalize your library with color themes and cover styles • Import your existing library from Zotero • Find any paper or note from Spotlight • Create and manage notes with Shortcuts and Apple Intelligence via App Intents WORKS WITH ESSAYIST Researchist and Essayist share the same reference library through iCloud. Papers you add on one device or in either app are automatically available everywhere you work. PRIVATE BY DESIGN All AI analysis runs entirely on your device — your documents never leave it. Researchist collects no analytics by default and never uploads your papers. Network access is used only for public metadata lookup, downloading linked papers, and optional Zotero import. FREE AND PRO Reading, highlighting, and notes are free. Researchist Pro unlocks Paper Intelligence, collections, quick access to linked articles, and color themes & cover styles. Paper Intelligence (Beta) requires an Apple Intelligence compatible device. Start your personal research knowledge base today. Terms of Use: https://www.essayist.app/terms Privacy Policy: https://www.essayist.app/privacy
AI PDF Reader
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AI PDF Reader brings fast, private, local-first AI to your PDFs on iPhone, iPad, and Mac. Read, search, and annotate documents — then ask questions, summarize, and pull out key points with on-device AI. Once a model is installed it works fully offline: your documents never leave your device, and there are no accounts or trackers. Upgrade to Pro for premium AI models and the scanned-PDF OCR path. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://softwaretailor.com/privacy.htm
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Verdict
The clearest difference is iOS requirement: AI PDF Reader at 14.0 against Researchist's 27.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Researchist sells 1 in-app purchase, starting at $39.99 per year and AI PDF Reader sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Researchist ships an update fortnightly, AI PDF Reader every 2 weeks. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.
| Parameter | Researchist | AI PDF Reader |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 27.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 113 MB | 226 MB |
| Age rating | 4+ | 12+ |
| Developer | Essayist Software Inc. | Software Tailor (HK) Limited |
In-app purchases
Researchist
- Researchist Pro (Yearly)7 Days trial$39.991 Year
AI PDF Reader
- Pro Personal - Monthly$0.991 Month
- Pro Business - Monthly$4.991 Month
- Pro Personal - Yearly$9.991 Year
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- Pro Business - Yearly$49.991 Year









