# Just A 2nd vs ComposePocket

The clearest difference is in-app purchases: ComposePocket at none against Just A 2nd's 1. ComposePocket also leads on update cadence (every 5 days vs monthly) and iOS requirement (15.0 vs 18.0). Just A 2nd's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Just A 2nd sells 1 one-off in-app purchase. ComposePocket asks for nothing beyond the download.

Just A 2nd ships an update monthly, ComposePocket every 5 days. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Just A 2nd | ComposePocket |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/just-a-2nd/id6756837888/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 29 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [俊荣 陆](https://appshunter.io/developer/1863155306) | [S&T Soft](https://appshunter.io/developer/1023271634) |

## What reviewers say

### Just A 2nd

[App page](https://appshunter.io/ios/app/just-a-2nd/id6756837888)

Improve your music theory and ear training skills with quick daily exercises. This app helps you understand music better, whether you're learning an instrument or appreciating songs.

**Highlights:** Daily ear training exercises, Music theory drills, Instrument learning support, Music appreciation enhancement, Pocket-sized trainer

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Just A 2nd Pro | $0.99 | one-time |


### ComposePocket

[App page](https://appshunter.io/ios/app/composepocket/id6785766362)

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

**In-app purchases:** none


## Frequently asked questions

### Is Just A 2nd free?

Just A 2nd is free to download, with in-app purchases available.

### Is ComposePocket free?

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

### Do Just A 2nd or ComposePocket have ads?

ComposePocket shows ads; Just A 2nd does not.

### Which is updated more often, Just A 2nd or ComposePocket?

Just A 2nd ships an update monthly, and ComposePocket every 5 days. Most recently, Just A 2nd was updated on October 5, 2026 and ComposePocket on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*