Mach Note vs PDF Viewer by Nutrient
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mach Note
This app allows for versatile note-taking with freehand drawing on native PDFs, audio recording with a 3D visualizer, and RTF word processing. Notes sync across devices via iCloud, and documents can be annotated and exported for various platforms.
- Freehand drawing on native PDF notes
- Audio recording with 3D visualizer
- RTF word processing
- iCloud sync across devices
- iCloud HandOff for seamless device switching
- DOC/DOCX read support on iOS, read/write on OS X
- Speech-to-Text dictation
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Mach Note is the most innovative, flexible, compatible, and powerful Note-Taking application! Mach Note features Freehand Notes in a Native PDF format, Audio recording in a Native M4A format, and Word processing in RTF format. Using the PDF format, Freehand Notes are synced across all your devices (via iCloud) so you always have the latest version of your Notes with you — regardless of device. And since Mach Note uses the PDF format, you can annotate PDFs with powerful Note-taking tools *and* your Notes are ready for Mobile, Desktop, Web, and Print right from the get go: No more manually exporting notes and uploading files — Mach Note handles everything for you! Mach Note also lets you record Audio using your device’s built in microphone, and you can see your Audio with our stunning 3D Visualizer which works for both Recording and Playback. As well as being super easy to use; with all these features Mach Note gives you with an unparalleled Note-taking experience. And best of all, Mach Note is free for iOS and only $4.99 (U.S.) for OS X! With iCloud Drive, you can take Notes on the go and have your Notes ready at your Mac or Windows PC already downloaded when you get home* And If that wasn’t enough, PDFs and RTFs can be transferred instantly from one device to another with iCloud HandOff so you can start working on one device, and continue on another (iPhone, iPad, and Mac)** Ridiculously Advanced Features! - Freehand draw on Notes using native PDF format with “Vector" note taking tools such as Pencil, Eraser, and Highlighter; keeping PDF file sizes small - Record Audio in M4A format with stunning 3D Visualizor; M4A Audio files are synced to all your devices - RTF Word processing support for instances when all you need is the keyboard - iCloud support keeps your documents in Sync across iPhone, iPad, and Mac; and with iCloud Drive, Windows PCs and well* - iCloud HandOff lets you start work on one device and continue on another (iPhone, iPad, and Mac)** - DOC/DOCX Read support on iOS, DOC/DOCX Read/Write support on OS X - Text Tool lets your Touch/Click to Type anywhere (iPad/Mac) - Cut Tool Makes it easy to reposition PDF content - Add Images, Text, and Web Pages to a PDF instantly (iPad/Mac) - Full Speech-To-Text Dictation support anywhere you can Type (Press Dictation key on keyboard on iOS, press “Fn” key twice on OS X) - iCloud is completely optional — Mach Note works just as well offline as online! * iCloud Drive Support for Windows requires iCloud Drive install, iCloud Drive for Mac requires OS X 10.10 or later; iCloud Drive supports PDF/RTF/RTFD/DOC/DOCX **iCloud HandOff requires both Bluetooth 4.0/LE and WiFi on and enabled; iCloud HandOff works with PDF/RTF/RTFD only ***Large PDF Documents in the Cloud (such as large eBooks) is not recommended*** ***If you have any issues please restart your device!***
PDF Viewer by Nutrient
Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.
- View and search PDFs
- Annotate with highlights and notes
- Sign documents digitally
- Fill out PDF forms
- Organize and share documents
- Import from cloud services
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PDF Viewer is a fast and beautiful app, allowing you to view, search, and annotate PDF documents with ease on your iPhone and iPad. Access your files from iCloud, Dropbox, Box, OneDrive, Google Drive or any other cloud solution via Apple's familiar Document Browser interface. +++ Listed as “Productivity lifesaver” on the App Store +++ "A streamlined interface packed with powerful features - it’s like having a desktop-quality PDF toolkit wherever we go" – App Store Editor Notes “I'm impressed by how the folks at PSPDFKit have been able to fine-tune the document browser to the app's needs.” – MacStories.net "If you want a PDF viewer that is designed for reading PDF books, this is it." – App Review VIEW DOCUMENTS ON THE GO • Easily import a PDF from your favorite cloud service provider, email, or directly off a website. • Supports Open In Place, Drag & Drop and features the familiar Apple Document Browser interface from the Files app. • Search for the exact text you are looking for within the document. • Double tap on the screen to Smart Zoom directly to the text you want to read. • Annotate images (JPEG, PNG) non-destructive, just like PDF documents. (PRO) ANNOTATE WITH EASE • While reviewing a document, use your finger or Apple Pencil to highlight and markup text. • Leave comments by adding a note, text, or drawing directly on the PDF. • Add images or audio. • Reply to notes. (PRO) SIGN DOCUMENTS ANYWHERE • Add your signature to any document using your finger or Apple Pencil. • Move and resize your signature as needed. • Flatten a document to ensure the signature doesn’t change. CREATE AND EDIT PDFs • Create new documents from existing documents by moving, rotating, deleting, or adding new pages. • Combine multiple documents into a single one. (PRO) • Add bookmarks to easily return to certain pages in large documents. FILL OUT FORMS • Quickly fill out PDF Forms by adding text to the fields. • Flatten and secure the form once you’re done to ensure the document doesn’t change. • Add a signature to any Form. STORE, ORGANIZE AND SHARE • Store documents, create folders and organize your documents. • Share documents by printing, emailing or saving your edits back any cloud service. PASSWORD PROTECT DOCUMENTS • Read document metadata, title and keywords. • Protect documents with user and owner passwords and limit permissions. (PRO) AND SO MUCH MORE • Conveniently switch to night mode when viewing your documents at night. • Present on external screens without the distraction of toolbars. (PRO) • Have the text from a PDF read out loud to you with text-to-speech. • PDF Viewer remembers where you were down to the page/position where you left off - even across devices. PRICING PDF Viewer comes with a large feature set, completely free. Some advanced features require the purchase of PDF Viewer Pro, available as a subscription. We offer 3-monthly and yearly subscription plans. There’s also a fully functional 7-day trial, so you can test PDF Viewer Pro (including document merging and password editing) before you commit. All plans unlock the app on iPhone and iPad. TRUSTED BY COMPANIES YOU KNOW PDF Viewer is built on top of and powered by PSPDFKit, the same PDF engine trusted around the world by companies like Dropbox, Box, IBM, Atlassian, SAP, and Lufthansa. BE PART OF THE PDF VIEWER COMMUNITY pdfviewer.io twitter.com/pdfviewerapp LEGAL Duration and price of each subscription are displayed in PDF Viewers’ storefront, updated at the time of purchase. Payment will be charged to iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off no later than 24 hours before the end of the current period. Subscriptions and auto-renewal can be managed/turned off in the iTunes account settings. Any unused portion of a free trial period is forfeited as soon as a subscription is purchased. Terms of Use: https://pdfviewer.io/terms Privacy Policy: https://pdfviewer.io/privacy
Screenshots
Verdict
The clearest difference is rating: PDF Viewer by Nutrient at 4.6 against Mach Note's 3.0. PDF Viewer by Nutrient also leads on update cadence (monthly vs every 9 months) and ratings volume (9.1K vs 2). Mach Note's advantage is monetization model (free vs freemium) and iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases 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. Mach Note sells 1 one-off in-app purchase and PDF Viewer by Nutrient sells 2 in-app purchases, starting at $6.99 per 3 months. Whichever you choose, the download price is not the number that matters.
PDF Viewer by Nutrient holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: PDF Viewer by Nutrient has 9.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of Mach Note's written reviews are positive against 73% of PDF Viewer by Nutrient's.
Mach Note ships an update every 9 months, PDF Viewer by Nutrient monthly. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.
| Parameter | Mach Note | PDF Viewer by Nutrient |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.6 (9.1K ratings) — better |
| Positive reviews | 50.0% of reviews | 73.3% of reviews — better |
| Number of ratings | 2 | 9.1K — better |
| Update frequency | Every 9 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 109 MB |
| Age rating | 17+ | 4+ |
| Developer | Mach Software Design | PSPDFKit GmbH |
Customer experience
Mach Note
PDF Viewer by Nutrient
Bugs and requests
Mach Note
Not enough reviews yet to summarise bugs or requests.
PDF Viewer by Nutrient
Reported bugs
4 issues- Annotations randomly disappearing or not saving
- Incompatibility issues with certain PDF files
- Scrolling and panning problems on large PDFs
- Unexpected crashes after iOS updates
Requested features
5 requests- Add a rubber/eraser tool for annotations
- Implement a side-by-side PDF view mode
- Improve palm rejection and gesture support
- Allow customization of toolbar and shortcuts
- Provide better options for PDF file management
In-app purchases
Mach Note
- Remove Ads$0.99
PDF Viewer by Nutrient
- PDF Viewer Pro 3 Months7 Days trial$6.993 Months
- PDF Viewer Pro Yearly7 Days trial$19.991 Year
Questions
Is Mach Note free?
Is PDF Viewer by Nutrient free?
Which has better reviews, Mach Note or PDF Viewer by Nutrient?
Do Mach Note or PDF Viewer by Nutrient have ads?
Which is updated more often, Mach Note or PDF Viewer by Nutrient?
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