whatwatt vs Card Barcodes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
whatwatt
This utility app is preparing for future enhancements. Developers are working on new functionalities that will be revealed soon.
- Future feature groundwork
- Upcoming enhancements
- Developer updates
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The app that allows you to install whatwatt Go on a compatible smart meter, receive smart meter data in real time and connect your smart meter to services. Made for Switzerland.
Card Barcodes
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Store loyalty cards, membership cards, and any barcode-based cards on your iPhone. Never carry physical cards again. SCAN INSTANTLY Use your camera to capture any barcode automatically. No typing required. ALL FORMATS SUPPORTED QR codes, EAN-8, EAN-13, Code128, Code39, UPC-E, Aztec, PDF417 and more. AUTO BRIGHTNESS Screen brightness increases automatically when displaying cards for easy scanning at checkout. ORGANIZE YOUR WAY Drag to reorder cards, swipe to delete, and label cards with custom names. PRIVATE BY DESIGN Your cards stay on your device. No accounts, no cloud sync, no tracking. Just your cards. BEAUTIFUL INTERFACE Native iOS app with full dark mode support. Fast, smooth, and feels right at home on your iPhone.
Screenshots
Verdict
The clearest difference is update cadence: whatwatt at every 2 weeks against Card Barcodes's every 6 months. 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.
whatwatt ships an update every 2 weeks, Card Barcodes every 6 months. Both last shipped on October 24, 2026.
| Parameter | whatwatt | Card Barcodes |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 53 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | whatwatt AG | Paul Serby |
In-app purchases
whatwatt
No in-app purchases
Card Barcodes
No in-app purchases
