# e-chain — NFC e-paper keychain maker

> NFC e-paper keychain maker (iPhone/iPad app by Luigi Greco.)

- Source: https://appshunter.io/ios/app/e-chain/id6767170808 (this page in markdown: same URL + `.md`)
- Developer: [Luigi Greco](https://appshunter.io/developer/1788027996)
- Category: Utilities, Photo & Video
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 4 MB
- Languages: Italian, European Portuguese
- Released: 2026-05-26
- Data updated: 2026-06-19
- User reviews in markdown: https://appshunter.io/ios/app/e-chain/id6767170808/reviews.md

## What is e?

e-chain helps you design and write artwork to supported NFC-powered e-paper keychain displays.

Choose your Waveshare 1.54-inch panel, add a photo or text, tune brightness, contrast, saturation, exposure, sharpness, dithering, and panel colors, then send the finished image by holding your iPhone near the NFC tag.

Features:
- Supports Waveshare 1.54-inch NFC-powered e-paper B and G panels
- Photo import with live e-paper preview
- Text overlays with repeat and spacing controls
- Three-color and four-color panel palettes
- Dithering and direct color modes
- Local saved drafts and recent images
- NFC write progress with clear status updates


## Version history (last 1 release)

### 1.1 — 2026-05-26

No release notes.

## More apps by Luigi Greco

- [BizNiz](https://appshunter.io/ios/app/bizniz/id6740026691)
- [Comboios PT](https://appshunter.io/ios/app/comboios-pt/id6753978610)
- [BYO Banana](https://appshunter.io/ios/app/byo-banana/id6764585085)

All apps by Luigi Greco: https://appshunter.io/developer/1788027996

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-19.*