# BT Card vs E

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.

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.

## The numbers

| Metric | BT Card | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 5 MB | 23 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Smarfid Security Equipment Co., Ltd.](https://appshunter.io/developer/1257595178) | [POP RECREU ELECTRONIC SDN.BHD.](https://appshunter.io/developer/1704768384) |

## What reviewers say

### BT Card

[App page](https://appshunter.io/ios/app/bt-card/id1257595179)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-relife/id6463694369)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BT Card free?

BT Card is free to download, with no in-app purchases.

### Is E free?

E is free to download, with no in-app purchases.

### Do BT Card or E have ads?

Neither BT Card nor E shows ads.

### Which is updated more often, BT Card or E?

BT Card ships an update monthly, and E every 2 months. Most recently, BT Card was updated on September 12, 2026 and E on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*