Comparison

CellTrust SL2 for Microsoft vs Notate PDF

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

Head to head
About

CellTrust SL2 for Microsoft

This app provides a secure mobility solution for businesses, integrating with Microsoft Intune to manage devices and mobile communications. It ensures regulatory compliance, captures business communications for archiving, and offers secure messaging and voice features.

Highlights
  • Device and application management
  • Secure mobile communication
  • Regulatory compliance
  • Automatic communication archiving
  • Secure mobile voice and messaging
  • Integration with Microsoft 365
Features
Read full description

CellTrust SL2™ and Microsoft Intune deliver a complete mobility solution for enterprises to take control of their devices, applications and mobile communication. Residing inside the Microsoft Intune container, which provides advanced controls for organizations to monitor and manage BYOD and COPE deployments, SL2 helps ensure that your organization’s mobile communications meet the highest standards of security and regulatory compliance. Fully archive agnostic, SL2 automatically captures business communications and routes them to your preferred archiving provider—supporting compliance without disrupting workflows. SL2 features secure mobile voice (optional) and messaging via a dedicated US phone number (Mobile Business Number - MBN) with Single Sign On, and integration with Microsoft 365 Exchange contacts. SIM card or VOIP voice options and features like Group Conversation enabling participants to converse and collaborate are also available. CellTrust container services are included. SL2 integrated with Microsoft Intune enables a rich set of mobile application protection policies to safeguard client data within the trusted Azure Cloud, helping to protect enterprises against cyber attacks. Integrating with Microsoft Intune enhances security and manageability features within the productive and trusted Azure cloud platform with increased endpoint security, Enterprise App Management and Endpoint Privilege Management. Any names or other personal data displayed are fictional and not based on real individuals. For use under patents: https://www.celltrust.com/SL2patents.

About

Notate PDF

Edit, annotate, and collaborate on PDF and Microsoft Office files online or offline. This app integrates with cloud storage and email for seamless business workflows, offering digital signatures and OCR scanning.

Highlights
  • Edit PDFs and Office documents
  • Sign and approve documents digitally
  • Collaborate with threaded comments
  • OCR scanning for searchable PDFs
  • Handwrite, type, or draw notes
  • Integrates with cloud storage
Features
Read full description

IMPORTANT: NOTATE REQUIRES a Microsoft 365, Hotmail, or Outlook.com email account. It has been specially designed to operate with Microsoft Office 365. Perfect for small & midsize businesses. Stay productive while you work from home! NOTATE PDF - THE OFFICE WORKSPACE FOR BUSINESS WHY NOTATE PDF? Edit and Annotate - Online or Offline Work with PDFs and Microsoft Office files using advanced editing, annotation, and collaboration tools. Built for Business Workflows Seamlessly access, edit, and organize files from Email, OneDrive, Dropbox, Box, WebDav, and more. KEY FEATURES • Edit PDFs and Office Documents Modify text, add comments, split or merge pages, and redact sensitive data. Create new documents or annotate existing ones in one unified experience. • Sign and Approve Documents Add legally binding digital signatures to contracts, forms, and compliance documents. • Collaborate in Context Share annotated documents and use threaded comments for feedback. Eliminate the back-and-forth of scattered reviews. • Scan, Search, and Capture Digitize paper documents with OCR scanning. Convert to searchable PDFs and attach to secure repositories or email. • Take Notes Your Way Handwrite, type, or draw with full Apple Pencil support. Organize content with rich formatting, embedded media, and folders. • Deploy with Confidence EXPERIENCE THE FUTURE OF MOBILE PRODUCTIVITY Download Notate PDF and empower yourself to edit with confidence — no matter where you work.

Screenshots

CellTrust SL2 for Microsoft4 screens
Notate PDF4 screens

Verdict

The call

The clearest difference is rating: CellTrust SL2 for Microsoft at 5.0 against Notate PDF's 4.3. CellTrust SL2 for Microsoft also leads on in-app purchases (none vs 9). Notate PDF's advantage is ratings volume (33 vs 4). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Notate PDF sells 9 in-app purchases, starting at $3.49 per month. CellTrust SL2 for Microsoft asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CellTrust SL2 for Microsoft holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Notate PDF has 33 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
CellTrust SL2 for Microsoft versus Notate PDF: the parameters behind the verdict, then further details
ParameterCellTrust SL2 for MicrosoftNotate PDF
PriceFreeFree
Rating5.0 (4 ratings) — better4.3 (33 ratings)
Positive reviews—25.0% of reviews
Number of ratings433 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size146 MB224 MB
Age rating4+17+
DeveloperCellTrust CorporationShafer Systems LLC

Customer experience

CellTrust SL2 for Microsoft

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Notate PDF

All ratings33 ratings
Positive84.8%
Neutral6.1%
Negative9.1%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

In-app purchases

None

CellTrust SL2 for Microsoft

No in-app purchases

9 purchases

Notate PDF

Subscriptions8
  • Monthly Subscription1 Month trial$3.491 Month
  • Monthly subscription(promo)1 Year trial$3.491 Month
  • Monthly Subscription14 Days trial$3.491 Month
Show 5 more
  • Monthly Premium Subscription$3.491 Month
  • Annual subscription1 Month trial$29.991 Year
  • Annual subscription (promo)1 Year trial$29.991 Year
  • Annual Subscription14 Days trial$29.991 Year
  • Annual Premium Subscription$29.991 Year
One-time1
  • 14 day premium trialFree

Questions

Is CellTrust SL2 for Microsoft free?
CellTrust SL2 for Microsoft is free to download, with no in-app purchases.
Is Notate PDF free?
Notate PDF is free to download, with in-app purchases available.
Which has better reviews, CellTrust SL2 for Microsoft or Notate PDF?
CellTrust SL2 for Microsoft is rated higher. CellTrust SL2 for Microsoft averages 5.0 out of 5 from 4 ratings, while Notate PDF averages 4.3 from 33 ratings.
Do CellTrust SL2 for Microsoft or Notate PDF have ads?
Neither CellTrust SL2 for Microsoft nor Notate PDF shows ads.
Which is updated more often, CellTrust SL2 for Microsoft or Notate PDF?
CellTrust SL2 for Microsoft ships an update every 3 months, and Notate PDF every 3 months. Most recently, CellTrust SL2 for Microsoft was updated on November 2, 2026 and Notate PDF on November 7, 2026.

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