# Viewgrader: Proportional Scale Calculator

> Calculates proportional scaling for video frame edges based on aspect ratio. (iPhone/iPad app by QART Serwis Jaromir Kopp.)

- Source: https://appshunter.io/ios/app/viewgrader-proportional-scale-calculator/id765009256 (this page in markdown: same URL + `.md`)
- Developer: [QART Serwis Jaromir Kopp](https://appshunter.io/developer/349285846)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 6.0 · 1 MB
- Languages: American English, Polish
- Released: 2013-11-28
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/viewgrader-proportional-scale-calculator/id765009256/reviews.md

## What is Viewgrader?

Viewgrader is a simple tool for the calculation of the edges of the movie frame for proportional scaling. In the case of proportional resizing video frame to scaling width, height must be scaled by the same aspect ratio. Conversely, scaling the height, width must be scaled by the same scale factor. The program calculates the aspect ratio after scaling one edge, for scaling another frame edge.

Example of use:
In a situation where we are scaling the video frame size of 320 x 220 pixels to the size of 280 pixels in width, it is necessary to reduce the height to proportional size.

## Key features

- Proportional scaling calculation
- Aspect ratio maintenance
- Width and height adjustment
- Video frame resizing tool

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/viewgrader-proportional-scale-calculator/id765009256/reviews.md

### 2/5 — Does the job sideways

*2022-05-20*

No rotation to landscape view makes this app awkward because my iPad sits horizontally on desk or table, almost permanently - but at least it does so without intrusion or distraction.

## Frequently asked questions about Viewgrader

### What is Viewgrader used for?

Viewgrader is a utility app designed to calculate the proportional scaling of video frame edges. It helps users determine how to adjust height when resizing by width, or vice versa, to maintain the correct aspect ratio.

### Is Viewgrader free to use?

Yes, Viewgrader is available for free. There are no costs associated with downloading or using its features.

### Does Viewgrader have ads?

No, Viewgrader is ad-free. Users can utilize the app without any advertisements interrupting their experience.

### What devices does Viewgrader support?

Viewgrader is compatible with iPhones and iPods. It is designed for iOS devices.

### How often is Viewgrader updated?

Viewgrader was last updated on November 28, 2013, with version 1.0. As of the last update, there have been no subsequent updates.

### What is the age rating for Viewgrader?

Viewgrader has an age rating of 4+. This indicates it is suitable for children and general audiences.

### Can Viewgrader calculate scaling for custom aspect ratios?

The app calculates proportional scaling based on maintaining the original aspect ratio when one dimension is changed. It focuses on ensuring the aspect ratio remains consistent during resizing.

## Version history (last 1 release)

### 1.0 — 2013-11-28

No release notes.

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## More apps by QART Serwis Jaromir Kopp

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All apps by QART Serwis Jaromir Kopp: https://appshunter.io/developer/349285846

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*