BLine Mobile vs qapdf
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLine Mobile
Easily create visual comparisons of text changes from your mobile device. This tool is ideal for reviewing documents, discussing edits, or sending feedback. It also offers an extension for blacklining directly from other applications.
- Create blacklines from electronic or paper text
- Review documents and discuss changes
- Send comments and feedback
- Extension for blacklining from other apps
- Mobile document comparison tool
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BLine allows you to create blacklines—a common way of showing changes between two texts—from anywhere on your iOS device. The source text can be electronic or paper. A handy tool when reviewing documents, discussing changes, or sending comments. Also adds an extension that allows blacklining from other apps. For the terms of use, please see https://bsparrow.com/terms_of_use.html.
qapdf
Interact with your PDF documents by asking questions and receiving answers directly from their content. This utility supports large files, enabling comprehensive analysis and information retrieval.
- View PDF files
- Chat with PDF content
- Ask questions about documents
- Receive answers from PDFs
- Supports large files (up to 1 million tokens)
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qaPDF is an app that allows you to view a PDF file and chat with it! Ask your PDF questions and the answers will be based on the contents of your document! It now works with large files up to 1 million tokens!
Screenshots
Verdict
The clearest difference is rating: qapdf at 5.0 against BLine Mobile's 4.5. qapdf also leads on in-app purchases (none vs 2). BLine Mobile's advantage is ratings volume (8 vs 1) and device support. On price and iOS requirement 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. BLine Mobile sells 2 in-app purchases, starting at $0.99 per month. qapdf asks for nothing beyond the download.
qapdf holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: BLine Mobile has 8 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | BLine Mobile | qapdf |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 3 weeks | — |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | — |
| Requires iOS | 16.2 — better | 17.2 |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Sparrow Systems Limited | Saush Software Services |
In-app purchases
BLine Mobile
- BLine Monthly$0.991 Month
- BLine Annual$5.491 Year
qapdf
No in-app purchases









