iDiff View vs BLine Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iDiff View
Compare two text files side-by-side to see changes. It highlights character, word, and line differences, supporting various cloud document providers for easy file access.
- Side-by-side file comparison
- Highlights character, word, and line changes
- Supports iCloud Drive, Google Drive, OneDrive
- Combined view on iPhone
- Identifies additions and deletions
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iDiff View highlights the difference between two versions of a text file. The left pane shows the older file and the right pane shows the more recent version. On the iPhone the differences are shown in a combined view. Files are chosen from document providers, such as iCloud Drive, Google Drive, OneDrive etc. iDiff shows which characters/words and lines have changed, highlighting additions and deletions.
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.
Screenshots
Verdict
The clearest difference is review sentiment: BLine Mobile at 100% against iDiff View's 33%. BLine Mobile also leads on rating (4.5 vs 3.4) and update cadence (every 3 weeks vs every 17 months). iDiff View's advantage is in-app purchases (none vs 2) and iOS requirement (9.2 vs 16.2). On price, ratings volume, 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
Both are free to download. BLine Mobile sells 2 in-app purchases, starting at $0.99 per month. iDiff View asks for nothing beyond the download.
BLine Mobile holds the better App Store score, 4.5 against 3.4. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews point the same way: 33% of iDiff View's written reviews are positive against 100% of BLine Mobile's.
iDiff View ships an update every 17 months, BLine Mobile every 3 weeks. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.
| Parameter | iDiff View | BLine Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) | 4.5 (8 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 | 8 — better |
| Update frequency | Every 17 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.2 — better | 16.2 |
| Further details — not scored | ||
| Size | 14 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ROCKETBOX LTD | Blue Sparrow Systems Limited |
Customer experience
iDiff View
BLine Mobile
In-app purchases
iDiff View
No in-app purchases
BLine Mobile
- BLine Monthly$0.991 Month
- BLine Annual$5.491 Year
