# GradingScale vs Pet Compass

The clearest difference is in-app purchases: GradingScale at none against Pet Compass's 3. GradingScale also leads on iOS requirement (11.3 vs 13.0). Pet Compass's advantage is update cadence (every 10 days vs every 93 months). On price, ads and device support there is nothing between them.

Both are free to download. Pet Compass sells 3 in-app purchases, starting at $2.99 per 7 days. GradingScale asks for nothing beyond the download.

GradingScale ships an update every 93 months, Pet Compass every 10 days. Both last shipped on October 6, 2026.

## The numbers

| Metric | GradingScale | Pet Compass |
| --- | --- | --- |
| 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 | **Every 10 days** |
| Monetization | Free | — |
| Size | 8 MB | 121 MB |
| Requires iOS | **11.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nady Analytics, LLC](https://appshunter.io/developer/1236618804) | [Miguel Hernandez](https://appshunter.io/developer/1518487458) |

## 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


### Pet Compass

[App page](https://appshunter.io/ios/app/pet-compass/id6757321643)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pet Compass Pro - Weekly | $2.99 | per 7 days |
| Pet Compass Pro - Monthly | $9.99 | per month |
| Pet Compass Pro - Yearly | $59.99 | per year |


## Frequently asked questions

### Is GradingScale free?

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

### Is Pet Compass free?

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

### Do GradingScale or Pet Compass have ads?

Neither GradingScale nor Pet Compass shows ads.

### Which is updated more often, GradingScale or Pet Compass?

GradingScale ships an update every 93 months, and Pet Compass every 10 days. Most recently, GradingScale was updated on October 6, 2026 and Pet Compass on October 6, 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.*