Note Calculator vs QR Code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Note Calculator
This app allows you to perform calculations by writing equations in a text format, similar to a notebook. It supports variables, grouping, and saves your work as text files for easy sharing.
- Text-based calculation input
- Supports variables and grouping
- Saves calculations as text files
- Easy sharing with other apps
- Improved percentage calculations
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Note Calculator is a text-based calculator. Sometimes, performing calculations involving multiple equations can be challenging with a basic calculator, right? Using an app like Excel might feel too cumbersome and heavy for such tasks. Now, with Note Calculator, there's no need to worry. Simply write down your equations as if you were jotting them in a notebook, and it will automatically calculate them for you. You don't need to remember your calculations and results either. Your work is saved as text, which can be stored as a file and shared with any program that supports text. It couldn't be easier! Additionally, it supports variables, enabling you to perform calculations similar to simple programming: a = 3 b = 2 c = a + b Is it hard to remember or input variables? With a simple touch, you can select variables from a list or easily add new ones. Plus, you can group variables using blocks, allowing for even more advanced calculations. Key Features: - Text-based calculator - Supports variables for more complex calculations with ease! - Saves all calculations and results to a file - Supports grouping with blocks (for advanced calculations) - Easily share calculations and results with other apps (Message, Whatsapp, KakaoTalk) - Show calculation results up to the current cursor position - Percentage calculation improvement (e.g. $100 - 25% = $75)
QR Code
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Turn your business links into powerful promotional tools with ease. Our app helps you create professional QR codes and shareable cards for any purpose: Business Links – Generate QR codes that link directly to your website, portfolio, or contact page. Custom Cards – Design and place digital business cards on a stand for quick scanning. Posters & Events – Create poster-ready QR codes for events, promotions, and announcements. Social Media Growth – Share QR codes that drive people straight to your social profiles. Flexible Options – Make text-based QR codes, website QR codes, or event details QR codes. Whether you’re promoting on social media, at a networking event, or in-store, this app makes it simple to connect people with your brand.
Screenshots
Verdict
The clearest difference is price: QR Code at Free against Note Calculator's $0.99. Note Calculator's advantage is ads (none vs shown) and update cadence (fortnightly vs every 32 months). On in-app purchases and iOS requirement 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
QR Code is free to download; Note Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Note Calculator ships an update fortnightly, QR Code every 32 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.
| Parameter | Note Calculator | QR Code |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 86.4% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Fortnightly — better | Every 32 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | woojooin | NEXTLINK PTY LTD |
In-app purchases
Note Calculator
No in-app purchases
QR Code
No in-app purchases









