# NND School vs Simple Calculator

NND School and Simple Calculator are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | NND School | Simple Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 51 MB | 17 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manish Malik](https://appshunter.io/developer/1347506265) | [Hall of Fame Bets Inc.](https://appshunter.io/developer/1689142948) |

## What reviewers say

### NND School

[App page](https://appshunter.io/ios/app/nnd-school/id6575385071)

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

**In-app purchases:** none


### Simple Calculator

[App page](https://appshunter.io/ios/app/simple-calculator-app/id6744988519)

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

**In-app purchases:** none


## Frequently asked questions

### Is NND School free?

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

### Is Simple Calculator free?

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

### Do NND School or Simple Calculator have ads?

Neither NND School nor Simple Calculator shows ads.

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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.*