# Centered Cardboard vs Permivia

The clearest difference is in-app purchases: Permivia at none against Centered Cardboard's 1. Permivia also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Centered Cardboard sells 1 one-off in-app purchase. Permivia asks for nothing beyond the download.

## The numbers

| Metric | Centered Cardboard | Permivia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (64 ratings)](https://appshunter.io/ios/app/centered-cardboard/id6759780836/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 46 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oak Labs Limited Liability Company](https://appshunter.io/developer/1880606503) | [Tony Pro Fine Art Studios](https://appshunter.io/developer/491243447) |

## What reviewers say

### Centered Cardboard

[App page](https://appshunter.io/ios/app/centered-cardboard/id6759780836)

This app assists trading card collectors in pre-grading their cards. It uses your device's camera and clear visual tools to assess centering, alignment, and corners, providing estimated grading scores based on industry standards. Save, export, and share your card assessments easily.

**Highlights:** Live centering feedback with color-coded ratios, Grading score estimates, Corner grading for all four corners, Tilted measuring for rotated borders, True distance measurements, Adjustable outline guides, Up to 100x zoom

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Centered Cardboard Pro | $9.99 | one-time |


### Permivia

[App page](https://appshunter.io/ios/app/permivia/id6760590242)

**In-app purchases:** none


## Frequently asked questions

### Is Centered Cardboard free?

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

### Is Permivia free?

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

### Do Centered Cardboard or Permivia have ads?

Neither Centered Cardboard nor Permivia shows ads.

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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.*