# ZipGrade vs ATX Science Olympiad

The clearest difference is in-app purchases: ATX Science Olympiad at none against ZipGrade's 1. ATX Science Olympiad also leads on update cadence (weekly vs every 6 weeks) and review sentiment (100% vs 86%). ZipGrade's advantage is ratings volume (37K vs 5). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for ZipGrade against 5.0 for ATX Science Olympiad. That said, the two scores are not equally well evidenced: ZipGrade has 37K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 86% of ZipGrade's written reviews are positive against 100% of ATX Science Olympiad's.

ZipGrade ships an update every 6 weeks, ATX Science Olympiad weekly. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ZipGrade | ATX Science Olympiad |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (37K ratings)](https://appshunter.io/ios/app/zipgrade/id635077270/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/atx-science-olympiad/id6759133064/reviews)** |
| Number of ratings | **37K** | 5 |
| Positive reviews | 85.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 30 MB | 20 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZipGrade LLC](https://appshunter.io/developer/582826575) | [ATX Science Olympiad](https://appshunter.io/developer/1877011714) |

## 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


### ATX Science Olympiad

[App page](https://appshunter.io/ios/app/atx-science-olympiad/id6759133064)

This app helps competitors manage their tournament day. Build your schedule, navigate the event venue, and stay informed with real-time updates.

**Highlights:** Build custom schedules, Navigate event campus, Receive tournament updates, Event day management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZipGrade free?

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

### Is ATX Science Olympiad free?

ATX Science Olympiad is free to download, with no in-app purchases.

### Which has better reviews, ZipGrade or ATX Science Olympiad?

ATX Science Olympiad is rated higher. ZipGrade averages 4.9 out of 5 from 37K ratings, while ATX Science Olympiad averages 5.0 from 5 ratings.

### Do ZipGrade or ATX Science Olympiad have ads?

Neither ZipGrade nor ATX Science Olympiad shows ads.

### Which is updated more often, ZipGrade or ATX Science Olympiad?

ZipGrade ships an update every 6 weeks, and ATX Science Olympiad weekly. Most recently, ZipGrade was updated on October 31, 2026 and ATX Science Olympiad on October 28, 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.*