# IOA Virtual Swimming Pool vs JustinGuitar Note Trainer

The clearest difference is price: JustinGuitar Note Trainer at $4.99 against IOA Virtual Swimming Pool's $12.99. JustinGuitar Note Trainer also leads on ads (none vs shown) and update cadence (fortnightly vs every 30 months). IOA Virtual Swimming Pool's advantage is review sentiment (100% vs 80%) and iOS requirement (12.0 vs 15.1). On in-app purchases, monetization model and device support there is nothing between them.

IOA Virtual Swimming Pool costs $12.99 and JustinGuitar Note Trainer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IOA Virtual Swimming Pool ships an update every 30 months, JustinGuitar Note Trainer fortnightly. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | IOA Virtual Swimming Pool | JustinGuitar Note Trainer |
| --- | --- | --- |
| Price | $12.99 | **$4.99** |
| Rating | — | **[4.4 (5 ratings)](https://appshunter.io/ios/app/justinguitar-note-trainer/id6761114951/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 30 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#45** |
| Size | 1.3 GB | 40 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SARA JANE BURMAN](https://appshunter.io/developer/1784676150) | [Justin Guitar](https://appshunter.io/developer/502491353) |

## What reviewers say

### IOA Virtual Swimming Pool

[App page](https://appshunter.io/ios/app/ioa-virtual-swimming-pool/id1576542392)

Experience a realistic virtual swimming pool environment designed to help overcome aquaphobia. Safely explore the pool, practice water entry, and get comfortable with submersion and movement underwater from home.

**Highlights:** Interactive VR swimming pool, Aquaphobia learning program, Realistic water entry and movement, Shallow and deep end exploration, Relaxation coaching and videos, Comfortable home-based learning

**Features:** macOS Compatibility

**In-app purchases:** none


### JustinGuitar Note Trainer

[App page](https://appshunter.io/ios/app/justinguitar-note-trainer/id6761114951)

**Currently charting:** #45 Top Paid · Education (US App Store)

Master the guitar fretboard quickly with daily exercises designed to build a deep understanding of note locations. This app helps you stop guessing and start knowing every note on your guitar, improving your playing.

**Highlights:** Learn fretboard notes fast, Daily 5-minute exercises, Build mental map of guitar neck, Stop guessing, start knowing notes, Smart repetition for weak spots, Practice anywhere on your phone

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

**In-app purchases:** none


## Frequently asked questions

### Is IOA Virtual Swimming Pool free?

IOA Virtual Swimming Pool costs $12.99, with no in-app purchases.

### Is JustinGuitar Note Trainer free?

JustinGuitar Note Trainer costs $4.99, with no in-app purchases.

### Do IOA Virtual Swimming Pool or JustinGuitar Note Trainer have ads?

IOA Virtual Swimming Pool shows ads; JustinGuitar Note Trainer does not.

### Which is updated more often, IOA Virtual Swimming Pool or JustinGuitar Note Trainer?

IOA Virtual Swimming Pool ships an update every 30 months, and JustinGuitar Note Trainer fortnightly. Most recently, IOA Virtual Swimming Pool was updated on October 20, 2026 and JustinGuitar Note Trainer on October 25, 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.*