Arduino UDP vs QR Code Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arduino UDP
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arduino ESP8266 へUPD接続しStringデータを送るプログラムです arduino側のプログラムは下記を参照してください http://arduino.iya.tokyo/030udp/ ソースのままであればipアドレスは 192.168.4.1 ポート 8888 になると思います 下記のような感じで操作可能です https://youtu.be/qq8vZGHCiaw arduino 側で受信した情報を元に動作設定していけばarduino がiPhoneで操作可能です
QR Code Reader
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The best app to scan QR Code and Barcode! More than 15 types supported : QR Code, Barcode, Datamatrix, Code128, Code39, EAN-8, EAN-13, Google Auth With powerful features : - Products & food detailed informations - QR Code detailed data cards - Scan history Convert image to PDF files. Easy & Offline PDF Converter: Image to PDF Converter. The photo to PDF converter app & PDF editor is very easy to use. PDF converter to export to and from PDF If you are Low on space Try it now! ***** PRO ***** For additional quality upgrade To Pro. • Payment will be charged to iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period. • You can cancel your subscription via this URL: https://support.apple.com/en-us/HT202039 Terms of Use: https://www.1xdigital.co.uk/terms.html Privacy Policy: https://www.1xdigital.co.uk/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Arduino UDP at none against QR Code Reader's 1. Arduino UDP also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 5 months). On price 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. QR Code Reader sells 1 in-app purchase, starting at $7.99 per month. Arduino UDP asks for nothing beyond the download.
Arduino UDP ships an update every 2 weeks, QR Code Reader every 5 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.
| Parameter | Arduino UDP | QR Code Reader |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | YASUYUKI INUKAI | Haan Apps |
In-app purchases
Arduino UDP
No in-app purchases
QR Code Reader
- Monthly Pro$7.991 Month
Questions
Is Arduino UDP free?
Is QR Code Reader free?
Do Arduino UDP or QR Code Reader have ads?
Which is updated more often, Arduino UDP or QR Code Reader?
Other comparisons
