Open Note vs PDF Reader & Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Open Note
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Open Note is an all-in-one note-taking tool with a scientific design that will satisfy your needs! You can write down to-do lists with reminders and make colorful notes. You may attach anything to your notes, including drawings, photos, audio, timelines, account lists, and more, using the attachment function. Let's explore what makes Open Note the perfect note-taking app! Make Notes Of Everything The Open Note app allows you create notes with all the information you need, from brief notes to detailed notes, quickly and simply. This prevents you from forgetting or missing critical information. Quick And Easy Access The Open Note app makes it easy to access your notes whenever and wherever. You can use variety of gadgets to get to your notes, such as your phone or tablet. Flexible Usage Open Note is a multi-purpose app that can be used for everything from storing personal info to team collaboration and project management. Its flexibility lets you to adjust it to your own necessities and goals. High Security The Open Note app offers powerful security features to protect your notes. With encryption and passcode settings, you can rest assured that your information is always safely guarded. Sync And Backup With cross-device syncing, the Open Note app lets you keep your notes up to date on whatever device you're using. This guarantees you can work and access information efficiently, even on the go. Significant Features: - Create notes easily and quickly. - Create to-do lists. - Create note categories. - Attach images to your notes. - Draw and handwrite in your notes. - Record voice and attach to notes. - Add important occasions in your notes, such as birthdays and anniversaries. - Secure storage of account information. - Attach files to your notes. - Optical character recognition (OCR): Scan text from images and the camera. - Speech to text: Convert voice to text so you don't have to write by hand. - Customize notes with a variety of fonts, typography, and font sizes. - Adjust note creation time. - Automatically save notes while you're taking them. - Set note reminders to ensure you don't miss anything. Reminders are repeatable weekly, annually, and advanced customizable. - Lock notes to safeguard them with a passcode. - Duplicate notes, creating copies of the ones you've made. - Export and share notes as pictures, PDFs, or text. - Search for notes by title and content. - Notes can be filtered by color, time, category, or attribute. - Sort notes by date and alphabetically. - View notes in calendar mode. - Display notes in list or grid mode. - Detailed statistics on the data of the created notes. - Dark mode makes your eyes feel more relaxed at night. - Sync and backup notes to Google Drive, OneDrive, or Dropbox for safekeeping; you'll never lose any. If you use the Open Note app frequently, upgrade to the Premium version for the best experience. Please contact us at support@desa.mobi if you have any thoughts or concerns. If Open Note app is really useful to you, please share Open Note app with your friends! Thank you for using the Open Note app!
PDF Reader & Tools
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PDFKit is a PDF reader and a full PDF toolbox in one app. Every tool works on your iPhone and iPad: your files are processed on the device, never uploaded to a server, and every result is saved as a new file, so your original stays as it was. All of it works offline, with no watermark on your files. PDF TOOLS • Merge: join PDFs into one file, in the order you choose • Split: by page ranges, every page, or every few pages • Extract pages: copy the pages you pick into a new PDF • Organize pages: drag thumbnails to reorder, delete pages (with undo) • Rotate pages: turn some or all pages • Compress: re-encodes photos and scans at the level you choose and shows the real size before and after. If a file can’t get smaller, PDFKit says so instead of saving a bigger copy • Images to PDF: photos, image files or the camera; reorder, crop and rotate; A4, Letter or the photo’s own size • Scan to PDF: take a photo of each page, crop and rotate as you go • PDF to images: every page as JPG or PNG at 150 or 300 dpi • Sign: draw your signature once, keep it on this device, place and resize it on any page • Watermark: your text across every page, with colour, opacity, angle and size • Page numbers: six positions, four formats, start number, skip the cover • Add password: AES-256 encryption with a password you choose • Remove password: with the password, save a copy that opens without one Results show their name, pages and size, with Open, Share, Save to device and Use in another tool. READER • Document, Book (page by page) and Reflow, which re-wraps the text of a page to fit your screen • Find bar: search the text of a PDF, including Arabic and Hebrew • Outline (table of contents), page thumbnails, Go to page, bookmarks and reading progress • Annotate: highlight, underline, strike out, draw, add text and notes in five colours, saved into the PDF so other apps show them too • Read aloud: sentence by sentence, with speed control and a sleep timer • White, Sepia, Gray, Dark and Black backgrounds; opens password-protected PDFs with their password • Open with: open PDFs from other apps, or share PDFs and photos to PDFKit LIBRARY • Recent files and favorites on the home screen, with page-one covers • Grid or list, search by name, filter and sort • Reading stats: day streak, pages read and time spent FREE, WITH ADS PDFKit is free and shows ads. One optional short ad turns on Pro extras until you close the app: Maximum compression and compressing up to 10 PDFs at once. No tool needs an ad to work. Privacy: your PDFs are processed on your device. The ads are served by Google AdMob, which collects device and usage data as described in our privacy policy.
Screenshots
Verdict
The clearest difference is in-app purchases: Open Note at none against PDF Reader & Tools's 1. Open Note also leads on iOS requirement (13.0 vs 15.0). PDF Reader & Tools's advantage is ads (none vs shown). On price, update cadence 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. PDF Reader & Tools sells 1 one-off in-app purchase. Open Note asks for nothing beyond the download.
Open Note ships an update every 2 weeks, PDF Reader & Tools every 10 days. The most recent releases landed on October 27, 2026 and November 9, 2026 respectively.
| Parameter | Open Note | PDF Reader & Tools |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 95 MB | 57 MB |
| Age rating | 17+ | 4+ |
| Developer | Cao Hoang | Gunawan Santoso |
In-app purchases
Open Note
No in-app purchases
PDF Reader & Tools
- PDFKit Pro$6.99









