BT Card vs E
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
BT Card
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Show-to-Go: Put the mobile phone close to (15 to 20 centimeters) Bluetooth Reader and open the door. Shake-to-Go: Shake the phone in the scope of the Bluetooth Reader and open the door. Hands-Free: Put the phone in the scope of the Bluetooth Reader and open the door. Manual Button: Click the Manual Button to open the door. Other functions: - Background Mode allows users to open the door without unlocking the phone. - Advanced Settings and Reader Settings need a password to enter. - Local Authorization and Remote Authorization. - Users can set the scope of the Bluetooth Reader. - During the anti-passback time, card data transmission is not allowed.
E
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Techero - Your Digital Product Recycling and Trade-in Expert! Techero is an application designed specifically for digital product enthusiasts and environmentally conscious individuals. Whether you're looking to sell your old phone, tablet, or other digital devices, Techero will provide you with the most accurate valuation in just five short minutes. Our app not only helps you get the best trade-in value but also offers you a sustainable way to dispose of your old devices, contributing to the well-being of our planet.
Screenshots
Verdict
The clearest difference is iOS requirement: E at 11.0 against BT Card's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BT Card ships an update monthly, E every 2 months. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.
| Parameter | BT Card | E |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 11.0 β better |
| Further details β not scored | ||
| Size | 5 MB | 23 MB |
| Age rating | 4+ | 17+ |
| Developer | Shanghai Smarfid Security Equipment Co., Ltd. | POP RECREU ELECTRONIC SDN.BHD. |
In-app purchases
BT Card
No in-app purchases
E
No in-app purchases
