# GrammarPal vs NASM CES Corrective Prep

The clearest difference is iOS requirement: NASM CES Corrective Prep at 13.0 against GrammarPal's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. GrammarPal sells 6 in-app purchases, starting at $0.99 per 7 days and NASM CES Corrective Prep sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | GrammarPal | NASM CES Corrective Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 117 MB | 26 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ky Thanh Pham](https://appshunter.io/developer/1818335025) | [FLY SKY PTY LTD](https://appshunter.io/developer/1838696534) |

## What reviewers say

### GrammarPal

[App page](https://appshunter.io/ios/app/grammarpal-easy-grammar/id6779588604)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly PRO | $0.99 | per 7 days |
| Monthly PRO | $4.99 | per month |
| 02 Month PRO | $8.99 | per 2 months |
| 03 Month PRO | $12.99 | per 3 months |
| 06 Month PRO | $19.99 | per 6 months |
| Yearly PRO | $19.99 | per year |


### NASM CES Corrective Prep

[App page](https://appshunter.io/ios/app/nasm-ces-corrective-prep/id6782509954)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Corrective Exercise Specialist | $6.99 | per 7 days |
| Corrective Exercise Specialist | $16.99 | per month |
| Corrective Exercise Specialist | $69.99 | one-time |


## Frequently asked questions

### Is GrammarPal free?

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

### Is NASM CES Corrective Prep free?

NASM CES Corrective Prep is free to download, with in-app purchases available.

### Do GrammarPal or NASM CES Corrective Prep have ads?

Neither GrammarPal nor NASM CES Corrective Prep 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.*