2T OilMixer vs QR Reader：QR Code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2T OilMixer
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.
- Calculate oil-to-fuel ratios
- Adjust amounts with sliders
- Metric/Imperial unit selection
- Prevent emissions and fouling
- User-friendly interface
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Avoid high emissions and oily deposits on spark plug by getting your ratio right. Simply choose your oil ratio, and swipe left or right to obtain the correct ratio! Be it oil-to-fuel, or fuel-to-oil. Use the sliders and buttons to fine tune your ratio / amounts. Choose between metric / imperial in your settings
QR Reader：QR Code
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FEATURES - Batch Scan - Scan history - Folders to stay organized - Scan all types of QR codes - QR Code detailed data cards - Safe all codes in your history - Save, export and share all barcodes - Scan, read, generate QR & Barcodes - Browse products and compare prices - Share using E-mail, IMessage, Facebook or Twitter - Link photos, LinkedIn, Youtube, App Store or Paypal - Read Websites, Contacts, Messages, Locations, Phone numbers, E-mails, Texts - Scan more types:QR Code, Barcode, Datamatrix, Code128, Code39,Code93, EAN-8, EAN-13 etc. https://sites.google.com/view/appqr/qrcode/agreement https://sites.google.com/view/appqr/qrcode/privacy
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | 2T OilMixer | QR Reader：QR Code |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 22 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | SPAZA DOT TECH (PTY) LTD | 宝锋 吴 |
In-app purchases
2T OilMixer
No in-app purchases
QR Reader：QR Code
No in-app purchases
Questions
Is 2T OilMixer free?
Is QR Reader：QR Code free?
Do 2T OilMixer or QR Reader：QR Code have ads?
Which is updated more often, 2T OilMixer or QR Reader：QR Code?
Other comparisons
