# E Ink BT Solution vs Smart ID Badge

The clearest difference is update cadence: Smart ID Badge at every 5 weeks against E Ink BT Solution's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

E Ink BT Solution ships an update every 9 months, Smart ID Badge every 5 weeks. The most recent releases landed on February 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | E Ink BT Solution | Smart ID Badge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Size | 1 MB | 1 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [E Ink Holdings Inc.](https://appshunter.io/developer/791464815) | [Microview Electronics (Guizhou) Company Limited](https://appshunter.io/developer/1769584304) |

## What reviewers say

### E Ink BT Solution

[App page](https://appshunter.io/ios/app/e-ink-bt-solution/id1474945368)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart ID Badge

[App page](https://appshunter.io/ios/app/smart-id-badge/id6702016877)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E Ink BT Solution free?

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

### Is Smart ID Badge free?

Smart ID Badge is free to download, with no in-app purchases.

### Do E Ink BT Solution or Smart ID Badge have ads?

Neither E Ink BT Solution nor Smart ID Badge shows ads.

### Which is updated more often, E Ink BT Solution or Smart ID Badge?

E Ink BT Solution ships an update every 9 months, and Smart ID Badge every 5 weeks. Most recently, E Ink BT Solution was updated on February 21, 2026 and Smart ID Badge on September 23, 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.*