# Know Notes vs Simpler Times Wallpapers

The clearest difference is review sentiment: Know Notes at 96% against Simpler Times Wallpapers's 0%. Simpler Times Wallpapers's advantage is in-app purchases (none vs 6) and update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Know Notes sells 6 one-off in-app purchases. Simpler Times Wallpapers asks for nothing beyond the download.

Know Notes ships an update fortnightly, Simpler Times Wallpapers every 4 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Know Notes | Simpler Times Wallpapers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (31 ratings)](https://appshunter.io/ios/app/know-notes-learn-music/id1536356966/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | **95.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 107 MB | 54 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [wylan neely](https://appshunter.io/developer/1261508202) | [Signworth](https://appshunter.io/developer/1702916009) |

## What reviewers say

### Know Notes

[App page](https://appshunter.io/ios/app/know-notes-learn-music/id1536356966)

Develop your musical ear by learning to identify notes and chords by sound. This gamified app makes practicing fun and competitive, allowing you to progress from basic notes to sharps and flats.

**Highlights:** Ear training, Note recognition, Chord recognition, Gamified learning, Progressive difficulty, Natural notes, sharps, and flats

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Violin Notes | $0.99 | one-time |
| Electronic Keyboard Notes | $0.99 | one-time |
| Grand Piano Notes | $0.99 | one-time |
| Unlock Violin Instrument | $2.99 | one-time |
| Acoustic Guitar (Major Chords) | $2.99 | one-time |
| Unlock Acoustic Guitar | $3.99 | one-time |


### Simpler Times Wallpapers

[App page](https://appshunter.io/ios/app/simpler-times-wallpapers/id6737144551)

Transform your iPhone lock screen into a retro iPod with a variety of classic models and colors. Customize your wallpaper with over 200 retro stickers to match your personal style.

**Highlights:** Classic iPod models for iPhone lock screen, 15 iPod models and colors, Over 200 retro stickers, Customizable wallpaper creation, Nostalgic aesthetic

**In-app purchases:** none


## Frequently asked questions

### Is Know Notes free?

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

### Is Simpler Times Wallpapers free?

Simpler Times Wallpapers is free to download, with no in-app purchases.

### Do Know Notes or Simpler Times Wallpapers have ads?

Neither Know Notes nor Simpler Times Wallpapers shows ads.

### Which is updated more often, Know Notes or Simpler Times Wallpapers?

Know Notes ships an update fortnightly, and Simpler Times Wallpapers every 4 days. Most recently, Know Notes was updated on October 25, 2026 and Simpler Times Wallpapers on October 24, 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.*