# BLine Mobile vs My Digital Vault

The clearest difference is in-app purchases: My Digital Vault at none against BLine Mobile's 2. My Digital Vault also leads on iOS requirement (13.0 vs 16.2). BLine Mobile's advantage is update cadence (every 3 weeks vs every 34 months). On price, ads and device support there is nothing between them.

Both are free to download. BLine Mobile sells 2 in-app purchases, starting at $0.99 per month. My Digital Vault asks for nothing beyond the download.

BLine Mobile ships an update every 3 weeks, My Digital Vault every 34 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | BLine Mobile | My Digital Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/bline-mobile/id1153367118/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 34 months |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 25 MB |
| Requires iOS | 16.2 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Blue Sparrow Systems Limited](https://appshunter.io/developer/1153367117) | [Hector Veitia Vila](https://appshunter.io/developer/1502665960) |

## What reviewers say

### BLine Mobile

[App page](https://appshunter.io/ios/app/bline-mobile/id1153367118)

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.

**Highlights:** 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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BLine Monthly | $0.99 | per month |
| BLine Annual | $5.49 | per year |


### My Digital Vault

[App page](https://appshunter.io/ios/app/my-digital-vault/id6446124491)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BLine Mobile free?

BLine Mobile is free to download, with in-app purchases available.

### Is My Digital Vault free?

My Digital Vault is free to download, with no in-app purchases.

### Do BLine Mobile or My Digital Vault have ads?

Neither BLine Mobile nor My Digital Vault shows ads.

### Which is updated more often, BLine Mobile or My Digital Vault?

BLine Mobile ships an update every 3 weeks, and My Digital Vault every 34 months. Most recently, BLine Mobile was updated on November 6, 2026 and My Digital Vault on November 3, 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.*