# ProofBox Vault vs DocLens

The clearest difference is in-app purchases: DocLens at none against ProofBox Vault's 1. DocLens also leads on update cadence (every 10 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ProofBox Vault sells 1 one-off in-app purchase. DocLens asks for nothing beyond the download.

ProofBox Vault ships an update every 4 months, DocLens every 10 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ProofBox Vault | DocLens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 2 MB | 45 MB |
| Requires iOS | **16.2** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [瑞华 张](https://appshunter.io/developer/1608130007) | [涛 刘](https://appshunter.io/developer/6785269438) |

## What reviewers say

### ProofBox Vault

[App page](https://appshunter.io/ios/app/proofbox-vault/id6763721179)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProofBox Pro | $6.99 | one-time |


### DocLens

[App page](https://appshunter.io/ios/app/doclens-ocr/id6792431107)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ProofBox Vault free?

ProofBox Vault is free to download, with in-app purchases available.

### Is DocLens free?

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

### Do ProofBox Vault or DocLens have ads?

Neither ProofBox Vault nor DocLens shows ads.

### Which is updated more often, ProofBox Vault or DocLens?

ProofBox Vault ships an update every 4 months, and DocLens every 10 days. Most recently, ProofBox Vault was updated on October 25, 2026 and DocLens on October 24, 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.*