Comparison

PDF Viewer by Nutrient vs LastScroll Screen Time Control

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • View and search PDFs
  • Annotate with highlights and notes
  • Sign documents digitally
  • Fill out PDF forms
  • Organize and share documents
  • Import from cloud services
Features
Read full description

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

About

LastScroll Screen Time Control

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Last Scroll is for the moment a quick check turns into scroll debt. It does not try to judge all screen time. It focuses on the part you regret: the minutes after you cross your own line. Pick the apps that pull you in. Create Scroll Traps for the moments where you usually lose control — bed rot, lunch holes, work escapes, morning checks, or any custom window. Set your line. Last Scroll tracks what happens after it. If warnings are too easy to ignore, Hard Mode can hold the boundary by restricting selected traps after you cross the line. WHY LAST SCROLL EXISTS A quick check is not the problem. The problem is when five minutes becomes forty. The problem is when “just Reddit” becomes the hour you wanted back. The problem is the part after your line. Last Scroll gives that part a name: Scroll Debt. WHAT YOU CAN DO • Choose apps and categories with Apple’s Screen Time picker • Create Scroll Traps for different danger windows • Set your personal line, such as 10, 15, or 20 minutes • Get warned when selected usage crosses your line • See today’s Scroll Debt • Review your 30-day pattern in Report • Use Hard Mode to restrict selected traps after crossing your line • Create multiple traps with Last Scroll Pro SCROLL TRAPS Bed Rot For late-night scrolling before sleep. Lunch Hole For the quick break that becomes the afternoon tax. Morning Trap For the first scroll after waking up, while the day is still yours. Work Escape For the focus escape hatch during work time. Custom Trap Draw your own line. LAST SCROLL PRO Upgrade to Last Scroll Pro to unlock: • Hard Mode • Multiple Scroll Traps • Longer Scroll Debt history • More ways to hold your line when warnings are too easy to ignore PRIVATE BY DESIGN Last Scroll uses Apple’s Screen Time APIs so you can choose apps and categories through the system picker. Last Scroll does not require an account. Your selected app names are not sent to analytics. IMPORTANT Last Scroll is a digital wellbeing tool. It does not provide medical advice, diagnose addiction, or measure sleep. Scroll Debt values are based on your selected apps, trap windows, thresholds, and recorded activity. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lastscroll.netlify.app/#privacy

Screenshots

PDF Viewer by Nutrient4 screens
LastScroll Screen Time Control4 screens

Verdict

The call

The clearest difference is device support: PDF Viewer by Nutrient at 4 against LastScroll Screen Time Control's 1. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDF Viewer by Nutrient sells 2 in-app purchases, starting at $6.99 per 3 months and LastScroll Screen Time Control sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF Viewer by Nutrient ships an update monthly, LastScroll Screen Time Control fortnightly. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 9 level
PDF Viewer by Nutrient versus LastScroll Screen Time Control: the parameters behind the verdict, then further details
ParameterPDF Viewer by NutrientLastScroll Screen Time Control
PriceFreeFree
Rating4.6 (9.1K ratings) — better—
Positive reviews73.6% of reviews—
Number of ratings9.1K — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone
Requires iOS17.0 — better18.6
Further details — not scored
Size112 MB19 MB
Age rating4+4+
DeveloperPSPDFKit GmbHChristopher Asche

Bugs and 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

LastScroll Screen Time Control

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

PDF Viewer by Nutrient

Subscriptions2
  • PDF Viewer Pro 3 Months7 Days trial$6.993 Months
  • PDF Viewer Pro Yearly7 Days trial$19.991 Year
4 purchases

LastScroll Screen Time Control

Subscriptions2
  • Last Scroll Pro Monthly$6.991 Month
  • Last Scroll Pro Yearly$39.991 Year
One-time2
  • Last Scroll Lifetime Offer$29.99
  • Last Scroll Lifetime$59.99

Questions

Is PDF Viewer by Nutrient free?
PDF Viewer by Nutrient is free to download, with in-app purchases available.
Is LastScroll Screen Time Control free?
LastScroll Screen Time Control is free to download, with in-app purchases available.
Do PDF Viewer by Nutrient or LastScroll Screen Time Control have ads?
Neither PDF Viewer by Nutrient nor LastScroll Screen Time Control shows ads.
Which is updated more often, PDF Viewer by Nutrient or LastScroll Screen Time Control?
PDF Viewer by Nutrient ships an update monthly, and LastScroll Screen Time Control fortnightly. Most recently, PDF Viewer by Nutrient was updated on October 13, 2026 and LastScroll Screen Time Control on September 29, 2026.

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