# ZipGrade vs KoolGround

The clearest difference is review sentiment: ZipGrade at 86% against KoolGround's 0%. ZipGrade also leads on rating (4.9 vs 2.0) and update cadence (every 6 weeks vs every 9 months). KoolGround's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

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

ZipGrade holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: ZipGrade has 36K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 86% of ZipGrade's written reviews are positive against 0% of KoolGround's.

ZipGrade ships an update every 6 weeks, KoolGround every 9 months. The most recent releases landed on October 13, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | ZipGrade | KoolGround |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (36K ratings)](https://appshunter.io/ios/app/zipgrade/id635077270/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/koolground/id1312833647/reviews) |
| Number of ratings | **36K** | 4 |
| Positive reviews | **85.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 30 MB | 9 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZipGrade LLC](https://appshunter.io/developer/582826575) | [C FIVE Inc](https://appshunter.io/developer/1261348366) |

## What reviewers say

### ZipGrade

[App page](https://appshunter.io/ios/app/zipgrade/id635077270)

Instantly grade multiple-choice tests and quizzes using your device's camera. This app offers a fast and accurate way for educators to assess student work, with features for organizing and exporting results. It provides immediate feedback to inform lesson planning and assignments.

**Highlights:** Instant grading with device camera, Supports multiple choice tests and quizzes, Organizes and exports results (PDF, Excel), Free answer sheet templates available, Companion website for data management, Stores results by student, subject, and quiz

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add 1 year of use | $6.99 | one-time |

**What reviewers like**

- 🚀 Efficient grading
- 👍 Instant feedback for students
- 📊 Detailed data analysis
- 💰 Affordable subscription
- ⏱️ Time-saving

**What reviewers complain about**

- 🐛 Inconsistent scanning issues
- 🔍 Difficulty navigating interface
- 🔢 Lack of class/student grouping options
- 🖼️ Poor image quality for student names

**Reported bugs**

- Scanning issues with flat surface detection
- Incorrect answer marking due to eraser marks

**Requested features**

- Ability to change question point values in bulk
- Option to create/edit answer keys on website
- Support for non-multiple choice question types
- Improved data export/integration with other systems


### KoolGround

[App page](https://appshunter.io/ios/app/koolground/id1312833647)

Streamline classroom management with features for attendance, assignments, grading, and communication. This app helps educators save time and paper by centralizing tasks and improving parent-teacher engagement.

**Highlights:** Automated attendance tracking, Paperless assignment creation and collection, Integrated gradebook with bulk editing, Class news and parent communication, Parent access to student progress, Detailed class and student reports

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZipGrade free?

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

### Is KoolGround free?

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

### Which has better reviews, ZipGrade or KoolGround?

ZipGrade is rated higher. ZipGrade averages 4.9 out of 5 from 36K ratings, while KoolGround averages 2.0 from 4 ratings.

### Do ZipGrade or KoolGround have ads?

Neither ZipGrade nor KoolGround shows ads.

### Which is updated more often, ZipGrade or KoolGround?

ZipGrade ships an update every 6 weeks, and KoolGround every 9 months. Most recently, ZipGrade was updated on October 13, 2026 and KoolGround on September 18, 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.*