# Mr. Chord Doodle vs K

The clearest difference is in-app purchases: Mr. Chord Doodle at none against K's 4. K's advantage is ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. K sells 4 one-off in-app purchases. Mr. Chord Doodle asks for nothing beyond the download.

Mr. Chord Doodle ships an update every 3 days, K every 5 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Mr. Chord Doodle | K |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 47 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KAZUAKI NATSUBAYASHI](https://appshunter.io/developer/6796887250) | [Asoft.iOS](https://appshunter.io/developer/562152712) |

## What reviewers say

### Mr. Chord Doodle

[App page](https://appshunter.io/ios/app/mr-chord-doodle/id6796887248)

Create, save, and display custom guitar chord diagrams with an intuitive drawing interface. Includes a high-precision tuner and a versatile metronome for all your practice needs.

**Highlights:** Chord and scale diagram drawing, Custom chord saving, Automatic chord detection, High-performance guitar tuner, Versatile metronome with sound sets, Left-handed mode support

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-tuner/id6811544285)

This application provides hands-free audio feedback for tuning musical instruments. It audibly announces the string and its tuning status, making it accessible for visually impaired users and convenient for all. Advanced features and additional tunings are available through a one-time purchase.

**Highlights:** Hands-free audio tuning, Spoken results for string and pitch, VoiceOver integration, Automatic string detection, Capo support, Visual meter for sighted users, Multiple alternative tunings (Pro)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coffee | $1.99 | one-time |
| A set of strings | $5.99 | one-time |
| KTuner Pro | $6.99 | one-time |
| A big thank-you | $19.99 | one-time |


## Frequently asked questions

### Is Mr. Chord Doodle free?

Mr. Chord Doodle is free to download, with no in-app purchases.

### Is K free?

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

### Do Mr. Chord Doodle or K have ads?

Mr. Chord Doodle shows ads; K does not.

### Which is updated more often, Mr. Chord Doodle or K?

Mr. Chord Doodle ships an update every 3 days, and K every 5 days. Most recently, Mr. Chord Doodle was updated on November 8, 2026 and K on November 6, 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.*