# Notate PDF for BlackBerry vs ResearchMonitor ResearchHub

The clearest difference is rating: Notate PDF for BlackBerry at 4.4 against ResearchMonitor ResearchHub's 3.5. Notate PDF for BlackBerry also leads on ratings volume (233 vs 2) and review sentiment (22% vs 0%). ResearchMonitor ResearchHub's advantage is iOS requirement (12.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Notate PDF for BlackBerry holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Notate PDF for BlackBerry has 233 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 22% of Notate PDF for BlackBerry's written reviews are positive against 0% of ResearchMonitor ResearchHub's.

Notate PDF for BlackBerry ships an update every 2 months, ResearchMonitor ResearchHub every 3 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Notate PDF for BlackBerry | ResearchMonitor ResearchHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (233 ratings)](https://appshunter.io/ios/app/notate-pdf-for-blackberry/id648469049/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/researchmonitor-researchhub/id863202021/reviews) |
| Number of ratings | **233** | 2 |
| Positive reviews | **21.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 252 MB | 6 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shafer Systems LLC](https://appshunter.io/developer/648469052) | [TRGRP, INC.](https://appshunter.io/developer/1214287373) |

## What reviewers say

### Notate PDF for BlackBerry

[App page](https://appshunter.io/ios/app/notate-pdf-for-blackberry/id648469049)

This secure mobile workspace allows regulated teams to edit, annotate, and collaborate on PDF and Office files offline or online. It integrates seamlessly with enterprise systems for secure document management and digital signing.

**Highlights:** Edit PDFs and Office Documents, Sign and Approve Documents, Collaborate in Context, Scan, Search, and Capture, Handwrite, type, or draw notes, Secure enterprise deployment

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Syncs with corporate servers
- 👍 Syncs with Outlook Notes
- 👍 Good for work productivity
- 👍 Prompt customer support
- 👍 Ecosystem with security options

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 Overheats iPad
- 🐛 Lost annotations on crash
- 🐛 Highlighting issues
- 🐛 Pen thickness too high

**Reported bugs**

- Application crashes almost every hour
- App crashes after making many annotates
- Highlighting does not simply highlight a word or sentence
- iPad crashes when using the app
- Cannot type into a note

**Requested features**

- Update for latest iPad pencil 2.0 functionality
- Allow changing drawing color after drawing
- Handwriting to text conversion
- Hyperlinks
- Tables


### ResearchMonitor ResearchHub

[App page](https://appshunter.io/ios/app/researchmonitor-researchhub/id863202021)

This mobile tool helps manage research projects for existing subscribers. It requires a prior subscription to access its research management features.

**Highlights:** Research management, Project tracking, Subscription integration

**In-app purchases:** none


## Frequently asked questions

### Is Notate PDF for BlackBerry free?

Notate PDF for BlackBerry is free to download, with no in-app purchases.

### Is ResearchMonitor ResearchHub free?

ResearchMonitor ResearchHub is free to download, with no in-app purchases.

### Which has better reviews, Notate PDF for BlackBerry or ResearchMonitor ResearchHub?

Notate PDF for BlackBerry is rated higher. Notate PDF for BlackBerry averages 4.4 out of 5 from 233 ratings, while ResearchMonitor ResearchHub averages 3.5 from 2 ratings.

### Do Notate PDF for BlackBerry or ResearchMonitor ResearchHub have ads?

Neither Notate PDF for BlackBerry nor ResearchMonitor ResearchHub shows ads.

### Which is updated more often, Notate PDF for BlackBerry or ResearchMonitor ResearchHub?

Notate PDF for BlackBerry ships an update every 2 months, and ResearchMonitor ResearchHub every 3 months. Most recently, Notate PDF for BlackBerry was updated on November 6, 2026 and ResearchMonitor ResearchHub on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*