WidPass vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WidPass
Organize all your QR codes and barcodes, like loyalty cards and coupons, in one convenient place. Add them via photos and access them instantly from your home screen widget. The app automatically maximizes screen brightness for easy scanning.
- Store QR codes and barcodes
- Home screen widget access
- Automatic brightness adjustment
- Local data storage
- No account required
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WidPass keeps all your QR codes and barcodes in one place — loyalty cards, membership passes, coupons, and more. HOW IT WORKS 1. Tap + and pick a photo from your library 2. WidPass finds the QR code or barcode and shows it in a green box. If it's off, drag the box or pinch to adjust it 3. Give it a label and save New here? Try the sample QR code or barcode first. WIDGET ACCESS Add the WidPass widget to your home screen. Tap ◀ ▶ to switch between your passes without opening the app. Tap the widget to open full-screen view instantly. FULL-SCREEN DISPLAY Screen brightness automatically goes to maximum so scanners can read your codes every time. SIMPLE & PRIVATE - No account required - All data stored locally on your device - No ads, no in-app purchases — completely free
K
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K-Card Reader is a focused Korean transit card balance checker for iPhone. Tap a supported physical KS X 6924 card with NFC to read practical details such as card family, card number, stored balance, issue date, valid-through date, recent trips, and local transaction history where the card exposes it. It is built for travelers, residents, and anyone who wants a quick way to check T-money, EZL/Cashbee, Climate Card, NAMANE, MOIBA, or K-Cash without hunting through station machines. Saved cards stay on your iPhone for fast review. Pro Mode is an optional $2/year subscription that removes ads, unlocks the hex parsing view, and backs up saved cards plus custom card-face images with your iCloud account. This is an unofficial utility and is not affiliated with transport operators, card issuers, or payment networks. It cannot top up cards, issue tickets, validate fares, or modify card data. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: WidPass at none against K's 1. On price, update cadence, ads 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. K sells 1 in-app purchase, starting at $1.99 per year. WidPass asks for nothing beyond the download.
WidPass ships an update every 10 days, K weekly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | WidPass | K |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | mongdaewon | Kitta Co. |
In-app purchases
WidPass
No in-app purchases
K
- Pro Mode$1.991 Year









