# Plus & Minus Percent vs QR reader

The clearest difference is in-app purchases: Plus & Minus Percent at none against QR reader's 1. QR reader's advantage is iOS requirement (10.0 vs 12.0). On price, update cadence, ads and device support there is nothing between them.

Plus & Minus Percent costs $0.99 and QR reader $0.99 up front. QR reader sells 1 one-off in-app purchase. Plus & Minus Percent asks for nothing beyond the download.

Plus & Minus Percent ships an update every 30 months, QR reader every 38 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Plus & Minus Percent | QR reader |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 30 months** | Every 38 months |
| Monetization | Paid | — |
| Size | 1 MB | 10 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evgeny Turchaninov](https://appshunter.io/developer/517592625) | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) |

## What reviewers say

### Plus & Minus Percent

[App page](https://appshunter.io/ios/app/plus-and-minus-percent/id1152462297)

Easily calculate amounts with added or included percentages, such as taxes, rates, or discounts. Prepare and save custom percentage lists for quick calculations. Sync your lists across devices using iCloud.

**Highlights:** Calculate added and included amounts simultaneously, Store custom lists of percentages with names and types, Automatic calculation from clipboard content, Unlimited storage for percentage lists, iCloud synchronization for percentage lists

**In-app purchases:** none


### QR reader

[App page](https://appshunter.io/ios/app/qr-reader-qr-code-scanner/id1479664955)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR reader - unlock | $1.99 | one-time |


## Frequently asked questions

### Is Plus & Minus Percent free?

Plus & Minus Percent costs $0.99, with no in-app purchases.

### Is QR reader free?

QR reader costs $0.99, and also offers in-app purchases.

### Do Plus & Minus Percent or QR reader have ads?

Neither Plus & Minus Percent nor QR reader shows ads.

### Which is updated more often, Plus & Minus Percent or QR reader?

Plus & Minus Percent ships an update every 30 months, and QR reader every 38 months. Most recently, Plus & Minus Percent was updated on October 26, 2026 and QR reader on October 26, 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.*