# GradingScale vs GradeKey

The clearest difference is in-app purchases: GradingScale at none against GradeKey's 1. GradingScale also leads on iOS requirement (11.3 vs 17.0). GradeKey's advantage is update cadence (monthly vs every 93 months). On price, ads and device support there is nothing between them.

Both are free to download. GradeKey sells 1 one-off in-app purchase. GradingScale asks for nothing beyond the download.

GradingScale ships an update every 93 months, GradeKey monthly. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | GradingScale | GradeKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/gradingscale/id1372581887/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 93 months | **Monthly** |
| Monetization | Free | — |
| Size | 8 MB | 7 MB |
| Requires iOS | **11.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nady Analytics, LLC](https://appshunter.io/developer/1236618804) | [Hernan Rosario](https://appshunter.io/developer/6791755727) |

## What reviewers say

### GradingScale

[App page](https://appshunter.io/ios/app/gradingscale/id1372581887)

Easily calculate assignment grades by inputting the total number of questions and the number answered correctly. This tool streamlines the grading process for educators and students alike.

**Highlights:** Calculate assignment grades, Input total questions, Input correct answers, Streamlined grading process

**Features:** macOS Compatibility

**In-app purchases:** none


### GradeKey

[App page](https://appshunter.io/ios/app/gradekey-grade-calculator/id6794347301)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GradeKey Pro | $7.99 | one-time |


## Frequently asked questions

### Is GradingScale free?

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

### Is GradeKey free?

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

### Do GradingScale or GradeKey have ads?

Neither GradingScale nor GradeKey shows ads.

### Which is updated more often, GradingScale or GradeKey?

GradingScale ships an update every 93 months, and GradeKey monthly. Most recently, GradingScale was updated on October 23, 2026 and GradeKey on October 11, 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.*