Supported Features
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
Rectoly for Mendeley
Read & annotate research PDFs
Free · In‑App Purchases
Read and annotate your Mendeley papers — right in Reading Mode. Two-column PDFs reflow into clean single-column text. Highlights and notes sync back to Mendeley.
Rectoly is the research-focused PDF reader built for Mendeley users. Your library stays in Mendeley — Rectoly makes reading and annotating on iPhone and iPad a genuine pleasure.
READING MODE — NEW IN 2.0
Academic papers are usually typeset in two columns, which makes them hard to read on a phone or in a narrow split view. Reading Mode reflows the paper into a single, clean text column — without losing the original PDF. Jump back to the exact page anytime.
ANNOTATE IN READING MODE
Unlike other readers, Rectoly lets you highlight, underline, add sticky notes, and write with Apple Pencil — all while staying in Reading Mode. Your handwriting even scales with the text size.
MENDELEY SYNC
Sign in with your Mendeley account and read your library directly on iPhone and iPad. Highlights and text notes are saved into the PDF and written back to Mendeley, so your annotations stay part of your existing research workflow — and remain available outside Rectoly.
WORKBENCH (iPad)
Pin Figure 1 beside the text and keep reading — no more scrolling back and forth between a figure and the paragraph that cites it. You can also split the reader: Reading Mode on one side, the original page on the other.
SOFT DARK
A paper-friendly dark mode that dims the page itself, not just the interface. Easy on the eyes for late-night reading.
A LIBRARY THAT STAYS OUT OF YOUR WAY
- Smart views: unread, downloaded, recently opened, favorites
- PDFs download only when you open them, saving storage
- Downloaded papers work fully offline — flights, commutes, conferences, field work
- Search across your papers
APPLE PENCIL, PRESERVED
Handwritten notes are backed up with iCloud, kept with a version history you can restore, and exportable as JSON for long-term preservation. Your research is never locked inside Rectoly.
14-DAY FREE TRIAL → ONE-TIME PURCHASE
Try every Pro feature free for 14 days. Unlock with a single one-time payment — no subscription, no recurring charges, no lock-in.
Rectoly is an independent app and is not affiliated with, endorsed by, or sponsored by Mendeley Ltd. or Elsevier. A Mendeley account is required to use this app.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update focuses on stability and performance.
• Big-library performance: launch, sync, and scrolling stay smooth even with thousands of papers. Fixed freezes and crashes on the library screen.
• Reading Mode: papers with lots of ink and annotations now open quickly and scroll smoothly.
• Lighter sticky-note and figure-link overlays for smoother page navigation.
The developer, Takaki Takemura, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Takaki Takemura
- Size
- 19.2 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 19 more
- English, Arabic, Danish, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Rectoly Pro (one-time) $49.99
- 14-day Trial $0.00
- Copyright
- © 2026 Hawk Eye