# Tonegraph vs QR Reader：QR  Code

The clearest difference is price: Tonegraph at Free against QR Reader：QR  Code's $1.99. Tonegraph also leads on update cadence (every 5 days vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Tonegraph is free to download; QR Reader：QR  Code costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tonegraph ships an update every 5 days, QR Reader：QR  Code every 4 months. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Tonegraph | QR Reader：QR  Code |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 4 months |
| Size | 15 MB | 35 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shinichi Takemura](https://appshunter.io/developer/1441889523) | [宝锋 吴](https://appshunter.io/developer/1639886745) |

## What reviewers say

### Tonegraph

[App page](https://appshunter.io/ios/app/tonegraph-instrument-tuner/id1441889524)

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

**In-app purchases:** none


### QR Reader：QR  Code

[App page](https://appshunter.io/ios/app/qr-readerqr-code/id6447519739)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tonegraph free?

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

### Is QR Reader：QR  Code free?

QR Reader：QR  Code costs $1.99, with no in-app purchases.

### Do Tonegraph or QR Reader：QR  Code have ads?

Neither Tonegraph nor QR Reader：QR  Code shows ads.

### Which is updated more often, Tonegraph or QR Reader：QR  Code?

Tonegraph ships an update every 5 days, and QR Reader：QR  Code every 4 months. Most recently, Tonegraph was updated on October 13, 2026 and QR Reader：QR  Code on October 2, 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.*