Memo Sticky vs ReadSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Memo Sticky
This digital notepad allows for effortless thought capture and organization. It offers voice-to-text, document scanning, and secure authentication for a seamless note-taking experience.
- Digital sticky notes
- Voice-to-text note creation
- Document scanning
- Face ID/Touch ID authentication
- iOS Widget support
- Colorful designs
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Keep quick thoughts, everyday lists, and useful reminders on a familiar corkboard. Memo Sticky makes text notes easy to capture, browse, and find again on iPhone and iPad. CAPTURE YOUR IDEAS • Create and edit colorful sticky notes • Use speech-to-text input when you would rather speak • Scan printed text with the camera and add the recognized text to a note • Adjust text size for comfortable reading KEEP IMPORTANT NOTES IN SIGHT • Search your notes and pin the ones you need most • View notes in Home Screen widgets and supported Lock Screen widgets • A single pinned note stays selected; multiple pinned notes rotate. If nothing is pinned, widgets rotate through active notes • Share note text or a Memo Sticky link ORGANIZE AT YOUR OWN PACE • Move notes to Trash, preview them, and restore them when needed • Select multiple notes for batch actions • Add a note to Calendar using the system event editor • Set note alarms on iOS and iPadOS 26 or later • Enable App Lock with system device authentication • Choose whether to use iCloud backup, restore, and automatic sync Use Memo Sticky for shopping lists, study notes, meeting ideas, or a thought you want to revisit. English and Simplified Chinese are supported. iCloud features require an iCloud account and an internet connection. Scanning, speech recognition, and alarms depend on supported devices, system versions, and permissions. Widget refresh timing is managed by the system.
ReadSync
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ReadSync remembers where you stopped reading — on every device. Open a PDF on your Mac, read to page 120, then pick up your iPhone. ReadSync opens the same document on the same page. Your highlights, notes and bookmarks are already there. WHY READSYNC • Your reading position syncs automatically through iCloud — in the free version too • No account to create, no subscription, no company server holding your files • Works completely offline — syncing is a layer on top, never a requirement PICK UP WHERE YOU LEFT OFF • A Continue Reading row at the top of your library, most recent first • A Home Screen widget that opens the document on the page you left • Nothing to press: the page is saved as you read and travels with you READING • A quiet reader that hides its controls while you read • Night mode that darkens the page without draining the colour from your highlights • Single or two-page layout, vertical or horizontal scrolling • Adjustable default zoom • Translate any passage you select into your own language, on your device with Apple's built-in translation HIGHLIGHTS AND NOTES • Five highlight colours • Attach a note to any passage • Every highlight and note in one list — tap to jump straight to the page • Export everything from a document as a single file, to Notes, Mail or Files • Nothing is written into the PDF itself; your original file stays untouched FINDING YOUR PLACE • Full-text search inside the document • The PDF's own table of contents • Bookmarks for the pages you want to come back to YOUR LIBRARY • Add files from Files or iCloud Drive • Leave a file where it is, or copy it into ReadSync so it syncs across your devices • Cover, progress and page count at a glance • Sort by last read, title or date added READING STATS • Total reading time, and how much of it was this week • A chart of the last seven days • Progress for every document you have started FREE AND PRO The free version is a whole reader, not a demo: iCloud sync, night mode, search, table of contents, bookmarks, translation and all five highlight colours, with room for 5 documents and 10 highlights or notes in each one. ReadSync Pro lifts both limits and opens reading stats, note export and the widget. It is a one-time purchase — there is no subscription. A limit only ever stops you adding something new. Everything already in your library stays open, in full, whether you buy or not. PRIVACY ReadSync is built entirely with Apple's own frameworks and stores everything in your private iCloud database. Your documents are never uploaded to anyone else's server. Anonymous usage statistics are sent only if you agree when asked, and never include your files, page contents, notes or highlights.
Screenshots
Verdict
The clearest difference is in-app purchases: Memo Sticky at none against ReadSync's 1. Memo Sticky also leads on iOS requirement (15.6 vs 18.0). On price, update cadence, ads 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
Both are free to download. ReadSync sells 1 one-off in-app purchase. Memo Sticky asks for nothing beyond the download.
Memo Sticky ships an update every 4 weeks, ReadSync every 2 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | Memo Sticky | ReadSync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (8 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 100 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Dongjie Zhang | Alper Albayrak |
In-app purchases
Memo Sticky
No in-app purchases
ReadSync
- Unlock Pro$19.99









