# 2T OilMixer vs QR Reader：QR  Code

The clearest difference is price: 2T OilMixer at $0.99 against QR Reader：QR  Code's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

2T OilMixer costs $0.99 and QR Reader：QR  Code $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2T OilMixer ships an update every 8 months, QR Reader：QR  Code every 4 months. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 2T OilMixer | QR Reader：QR  Code |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/2t-oilmixer/id673952662/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 22 MB | 35 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SPAZA DOT TECH (PTY) LTD](https://appshunter.io/developer/549105977) | [宝锋 吴](https://appshunter.io/developer/1639886745) |

## What reviewers say

### 2T OilMixer

[App page](https://appshunter.io/ios/app/2t-oilmixer/id673952662)

Easily calculate the correct oil-to-fuel ratio for your engine to prevent emissions and spark plug fouling. Adjust amounts precisely using sliders and buttons, and switch between metric and imperial units.

**Highlights:** Calculate oil-to-fuel ratios, Adjust amounts with sliders, Metric/Imperial unit selection, Prevent emissions and fouling, User-friendly interface

**Features:** macOS Compatibility

**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 2T OilMixer free?

2T OilMixer costs $0.99, with no in-app purchases.

### Is QR Reader：QR  Code free?

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

### Do 2T OilMixer or QR Reader：QR  Code have ads?

Neither 2T OilMixer nor QR Reader：QR  Code shows ads.

### Which is updated more often, 2T OilMixer or QR Reader：QR  Code?

2T OilMixer ships an update every 8 months, and QR Reader：QR  Code every 4 months. Most recently, 2T OilMixer was updated on September 9, 2026 and QR Reader：QR  Code on September 19, 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.*