# PDF Crisp View vs Calver

The clearest difference is in-app purchases: PDF Crisp View at none against Calver's 2. PDF Crisp View also leads on ads (none vs shown). Calver's advantage is update cadence (every 9 days vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calver sells 2 one-off in-app purchases. PDF Crisp View asks for nothing beyond the download.

PDF Crisp View ships an update every 6 months, Calver every 9 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | PDF Crisp View | Calver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 9 days** |
| Size | 75 MB | 10 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Running River Network Technology Limited](https://appshunter.io/developer/1804246053) | [Dylan Mathurin](https://appshunter.io/developer/1755943099) |

## What reviewers say

### PDF Crisp View

[App page](https://appshunter.io/ios/app/pdf-crisp-view-scannermaker/id6754379195)

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

**In-app purchases:** none


### Calver

[App page](https://appshunter.io/ios/app/calver-file-manager/id6787034513)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate 1$ | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is PDF Crisp View free?

PDF Crisp View is free to download, with no in-app purchases.

### Is Calver free?

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

### Do PDF Crisp View or Calver have ads?

Calver shows ads; PDF Crisp View does not.

### Which is updated more often, PDF Crisp View or Calver?

PDF Crisp View ships an update every 6 months, and Calver every 9 days. Most recently, PDF Crisp View was updated on October 25, 2026 and Calver on October 25, 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.*