# CompTIA Security+ Prep vs Guess The Note

The clearest difference is update cadence: Guess The Note at every 3 weeks against CompTIA Security+ Prep's every 4 months. CompTIA Security+ Prep's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CompTIA Security+ Prep sells 3 in-app purchases, starting at $19.99 per month and Guess The Note sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CompTIA Security+ Prep ships an update every 4 months, Guess The Note every 3 weeks. The most recent releases landed on September 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CompTIA Security+ Prep | Guess The Note |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 22 MB | 7 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [学勇 张](https://appshunter.io/developer/590340880) | [YAHYA RASHWAN](https://appshunter.io/developer/6790022943) |

## What reviewers say

### CompTIA Security+ Prep

[App page](https://appshunter.io/ios/app/comptia-security-plus-prep/id6478573710)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $19.99 | per month |
| 3 MONTHS | $39.99 | per 3 months |
| YEARLY | $59.99 | per year |


### Guess The Note

[App page](https://appshunter.io/ios/app/guess-the-note-ear-training/id6790022939)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Guess The Note Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is CompTIA Security+ Prep free?

CompTIA Security+ Prep is free to download, with in-app purchases available.

### Is Guess The Note free?

Guess The Note is free to download, with in-app purchases available.

### Do CompTIA Security+ Prep or Guess The Note have ads?

Neither CompTIA Security+ Prep nor Guess The Note shows ads.

### Which is updated more often, CompTIA Security+ Prep or Guess The Note?

CompTIA Security+ Prep ships an update every 4 months, and Guess The Note every 3 weeks. Most recently, CompTIA Security+ Prep was updated on September 17, 2026 and Guess The Note on October 5, 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.*