# Natural Selection Sim vs Grade Corner

The clearest difference is rating: Grade Corner at 4.9 against Natural Selection Sim's 3.2. Grade Corner also leads on review sentiment (82% vs 50%) and update cadence (weekly vs every 3 months). Natural Selection Sim's advantage is in-app purchases (none vs 4) and iOS requirement (10.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Grade Corner sells 4 in-app purchases, starting at $3.99 per month. Natural Selection Sim asks for nothing beyond the download.

Grade Corner holds the better App Store score, 4.9 against 3.2. That said, the two scores are not equally well evidenced: Grade Corner has 28K ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 50% of Natural Selection Sim's written reviews are positive against 82% of Grade Corner's.

Natural Selection Sim ships an update every 3 months, Grade Corner weekly. The most recent releases landed on September 13, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Natural Selection Sim | Grade Corner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (21 ratings)](https://appshunter.io/ios/app/natural-selection-sim/id910261072/reviews) | **[4.9 (28K ratings)](https://appshunter.io/ios/app/grade-corner/id1441670302/reviews)** |
| Number of ratings | 21 | **28K** |
| Positive reviews | 50.0% of reviews | **81.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 128 MB | 91 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Amplify Education, Inc.](https://appshunter.io/developer/433704168) | [Lucky Dog Collective, LLC](https://appshunter.io/developer/1441670301) |

## What reviewers say

### Natural Selection Sim

[App page](https://appshunter.io/ios/app/natural-selection-sim/id910261072)

This educational simulation models natural selection processes. It is designed for use with a specific science curriculum and requires a school-provided login and license to function.

**Highlights:** Natural selection simulation, Educational curriculum integration, Requires school login and license, iPad compatible

**In-app purchases:** none


### Grade Corner

[App page](https://appshunter.io/ios/app/grade-corner/id1441670302)

Access your academic performance on the go. View grades, assignments, schedules, and attendance. Communicate with teachers and track your progress throughout the school year.

**Highlights:** Check grades and class categories, View upcoming assignments and due dates, Track attendance records, Email teachers directly, Filter assignments by category, View past grades, Supports multiple students

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| Six Month Subscription | $12.99 | per 6 months |
| Annual Subscription | $19.99 | per year |
| Family Plan | $29.99 | per year |

**What reviewers like**

- 👍 Easy to use and understand
- 🚀 Quick access to grades and schedules
- 💡 Customizable color themes
- 🔒 Secure login process
- 👍 Convenient for parents and students

**What reviewers complain about**

- 🐛 Occasional login issues
- 🐛 Slow loading times
- 💡 Need for more features (grade notifications, schedule view for future days)

**Reported bugs**

- Login screen freezes
- No schedule information displayed

**Requested features**

- Grade notifications
- Schedule view for future days
- Ability to delete or rearrange classes
- Integration with other platforms (e.g., Google Classroom)


## Frequently asked questions

### Is Natural Selection Sim free?

Natural Selection Sim is free to download, with no in-app purchases.

### Is Grade Corner free?

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

### Which has better reviews, Natural Selection Sim or Grade Corner?

Grade Corner is rated higher. Natural Selection Sim averages 3.2 out of 5 from 21 ratings, while Grade Corner averages 4.9 from 28K ratings.

### Do Natural Selection Sim or Grade Corner have ads?

Neither Natural Selection Sim nor Grade Corner shows ads.

### Which is updated more often, Natural Selection Sim or Grade Corner?

Natural Selection Sim ships an update every 3 months, and Grade Corner weekly. Most recently, Natural Selection Sim was updated on September 13, 2026 and Grade Corner on September 30, 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.*