QRCode CRUD vs User Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QRCode CRUD
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Easy-to-use and free "QR code" reading & creating app If you hold it over a QR code, it will be read automatically. QR code reading and creation history are saved. Reading from stored images is also possible. ■ Reading method 1. Launch the app and select a camera from the menu. 2. Hold the camera over the QR code to focus. 3. Scanning is performed automatically, and the read contents are displayed. ■ Simple and stylish interface Designed with trendy flat design ■ Light and fast reading You can use light operation that does not make you feel stressed. ■ Enhanced functions The following functions are available. ・ Read QR code (camera or saved image) ・ Create QR code ・ Read and create history function ・ Display page setting at startup (camera / menu / scan history) ・ Vibe setting at the time of reading (ringing / not ringing) ・ Read history setting (store / do not store) ・ URL display browser setting (Safari / application built-in browser)
User Calendar
A versatile calendar app for managing work, vacations, and reminders. It offers Gregorian and Lunar calendar views, customizable alerts, and cloud storage for settings. Supports a wide range of countries and allows for custom holiday designations.
- Gregorian and Lunar calendar query
- Customizable reminders with color-coding
- System calendar integration
- Cloud storage for settings
- Customizable holidays and workdays
- Country-specific calendar information
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This is a powerful calendar program that allows you to customize the date of work and vacation, set various reminders, integrate system calendars, and store settings in the cloud space. 1.Gregorian and Lunar Query 2.Customize reminders for different colors of the Gregorian or Lunar calendar 3.Integrating system calendars, you can view system calendars directly 4.User-set calendars can exist in the cloud space of a personal account, and the change is not lost 5.Interval reminder 6.You can add special dates to the system calendar. The display will be distinguished by different colors, or you can hide other system calendars to distinguish between work and family trips 7.Reminder for weekdays (not counting holidays) 8.Users can customize vacation or non-holiday features 9.Astrology calendar 10.You can choose which country's calendar information to display, List of supported countries : If the country is not on the list, or the holiday is different because of different regions, you can also customize which day is a holiday or non-holiday 1.Taiwan 2.China 3.Hong Kong 4.Macau 5.Malaysia 6.Singapore 7.Japan 8.South Korea 9.Philippines 10.Vietnam 11.India 12.Canada 13.France 14.Germany 15.Austria 16.Switzerland 17.Czech Republic 18.Australia 19.Netherlands 20.Belgium 21.Luxembourg 22.Spain 23.Argentina 24.Paraguay 25.Mexico 26.Chile 27.Costa Rica 28.Portugal 29.Brazil 30.Italy 31.Ireland 32.United Kingdom 33.New Zealand 34.United States
Screenshots
Verdict
The clearest difference is update cadence: User Calendar at every 5 weeks against QRCode CRUD's every 5 months. User Calendar also leads on iOS requirement (12.0 vs 15.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
QRCode CRUD ships an update every 5 months, User Calendar every 5 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | QRCode CRUD | User Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 5 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Shigeaki Harada | Yihang Huang |
In-app purchases
QRCode CRUD
No in-app purchases
User Calendar
No in-app purchases









