Just A 2nd vs ComposePocket
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Just A 2nd
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.
- Daily ear training exercises
- Music theory drills
- Instrument learning support
- Music appreciation enhancement
- Pocket-sized trainer
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Say goodbye to boring music theory drills! Whether you are learning a new instrument or want to understand the music you love, Just A 2nd is your new pocket-sized trainer. Spend a few seconds a day and improve your hearing skills!
ComposePocket
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ComposePocket is a songwriting tool for sketching song ideas as fast as pulling your phone from your pocket. ■ Build songs from parts - Create parts like Verse, Chorus, and Inst, then arrange the whole song by order and repeats. - Place the same part in multiple spots (shared) and set how many times it repeats. ■ Notes and chords - Enter notes and chords in a note sequencer (major, minor, 7th, sus, and more). - Set per-measure time signature and BPM, plus a whole-song BPM. ■ Hear it, see it, export it - Play a part, a measure, or the whole song with an SF2 soundfont, with a moving playhead. - Tap a measure or note to move the play position; stop and resume from where you left off. - View native staff notation, or export to MusicXML/MIDI for other notation and DAW apps. Supports Korean and English. Free, with a banner ad at the bottom.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Just A 2nd | ComposePocket |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | 俊荣 陆 | S&T Soft |
In-app purchases
Just A 2nd
- Just A 2nd Pro$0.99
ComposePocket
No in-app purchases
