One vs vCardr
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
One
This utility generates a secure, eight-digit disposable password every minute. These one-time passwords are ideal for enhancing security across various online services, as they become invalid after a short period, even if compromised.
- Generates eight-digit passwords
- Passwords valid for one minute
- Enhances online service security
- Disposable password functionality
- Requires OTP application at service
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What is One-Time Password? One-Time Password is the disposable password which is effective solely once. In this Application, a random eight digit password is generated every one minute. You can securely use the various kinds of services because the password is invalidated in one minute even if the password is stolen. For using this App, it is required to apply for the OTP at the service which adopted this App. As applying for the OTP, the email notification about the App procedure will be delivered at the email address registered.
vCardr
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vCardr turns any contact into a full-screen QR code another phone can scan in seconds โ no app required on the other end and no account. Pick a contact and vCardr renders a standard vCard QR code you can hold up for someone to scan with their camera. Their phone offers to save the card straight to Contacts. That's it. โข Show your own card or anyone from your address book โข Contact cards work entirely offline and stay on your device โข No advertising or product tracking โข Clean, high-contrast codes that scan fast, in light or dark โข Received a card? Open it and save it with one tap โข Home-screen widget shows your contact QR code without opening the app โ StandBy included โข Optionally, a widget can show a QR code for downloading vCardr vCardr reads a contact only to draw its QR code on your screen. Your contact data stays on your device.
Screenshots
Verdict
The clearest difference is iOS requirement: One at 14.0 against vCardr's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
One ships an update every 5 months, vCardr every 2 months. The most recent releases landed on October 6, 2026 and October 29, 2026 respectively.
| Parameter | One | vCardr |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 12.5% of reviews | โ |
| Update frequency | Every 5 months | Every 2 months โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPod โ better | iPhone |
| Requires iOS | 14.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 49 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | NTT DATA GROUP CORPORATION | Philipp Kursawe |
In-app purchases
One
No in-app purchases
vCardr
No in-app purchases









