# QR Codes vs Calculator T

The clearest difference is update cadence: Calculator T at every 2 days against QR Codes's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QR Codes ships an update every 2 months, Calculator T every 2 days. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | QR Codes | Calculator T |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 14 MB | 16 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Activate Software Limited](https://appshunter.io/developer/1677858805) | [Xiao Hou Yi Sheng Traditional Chinese Medicine Technology (Shenzhen) Co., Ltd](https://appshunter.io/developer/1524258136) |

## What reviewers say

### QR Codes

[App page](https://appshunter.io/ios/app/qr-codes-scan-and-create/id6466299170)

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

**In-app purchases:** none


### Calculator T

[App page](https://appshunter.io/ios/app/calculator-t/id6473983653)

This app offers advanced scientific calculation and unit conversion capabilities. It features a history tape, memory functions, and supports complex mathematical operations. It also includes currency exchange rates and a wide range of measurement conversions.

**Highlights:** Standard and scientific function modes, Extensive unit conversion (over 300 units), History tape for last 100 records, Memory buttons (MS, M+, M-, MR, MC), Copy/paste functionality for equations and results, Support for large number calculations and scientific notation, Currency exchange rate conversion

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

**In-app purchases:** none


## Frequently asked questions

### Is QR Codes free?

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

### Is Calculator T free?

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

### Do QR Codes or Calculator T have ads?

Neither QR Codes nor Calculator T shows ads.

### Which is updated more often, QR Codes or Calculator T?

QR Codes ships an update every 2 months, and Calculator T every 2 days. Most recently, QR Codes was updated on October 25, 2026 and Calculator T on October 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.*