# EinkPin — E-INK Image Transfer

> E-INK Image Transfer (iPhone/iPad app by Beijing Zizai Technology Co.,Ltd..)

- Source: https://appshunter.io/ios/app/einkpin/id6793908983 (this page in markdown: same URL + `.md`)
- Developer: [Beijing Zizai Technology Co.,Ltd.](https://appshunter.io/developer/736738603)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 3 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-08-04
- Data updated: 2026-08-22
- User reviews in markdown: https://appshunter.io/ios/app/einkpin/id6793908983/reviews.md

## What is EinkPin?

EinkPin is a professional E-INK device image transfer tool designed for PICKSMART and SEEKINK protocol devices. Whether you're updating a price tag, a name card, or a phone case display, EinkPin makes it simple and fast.

**Key Features:**

• **BLE & NFC Transfer** — Transfer images via Bluetooth Low Energy or NFC
• **Advanced Image Processing** — Built-in dithering algorithms (Floyd-Steinberg, Atkinson, Burkes, Jarvis, Ordered, Blue Noise) for optimal E-INK output
• **Multi-Color Support** — Black/White, B/W/Red, B/W/Yellow, and 4-color (BWRY) displays
• **Live Preview** — See how your image will look on the target device before transferring
• **CLAHE Contrast Enhancement** — Improve image clarity on E-INK screens
• **Gamma Correction** — Fine-tune brightness and contrast
• **USM Sharpening** — Enhance edge details for crisper text and graphics
• **OTA Firmware Update** — Update your E-INK device firmware over BLE
• **NFC Device Binding** — Quickly pair devices by reading NFC tags
• **Dual Panel Mode** — Transfer different images to dual-screen devices simultaneously
• **Multi-language Support** — English and Chinese interfaces

**Compatible Devices:**
PICKSMART and SEEKINK E-INK displays, including name card tags, shelf labels, phone case displays, and more.


## Version history (last 2 releases)

### 0.2.1 — 2026-08-13

Latest Updates:
· Improve stability.
· Bug fixes.

### 0.1.1 — 2026-08-04

No release notes.

## More apps by Beijing Zizai Technology Co.,Ltd.

- [Nut - Smart Tracker](https://appshunter.io/ios/app/nut-smart-tracker/id736738600)
- [Findthing - Smart Finder](https://appshunter.io/ios/app/findthing-smart-finder/id1512559798)
- [FM Tester](https://appshunter.io/ios/app/fm-tester/id6761606594)
- [FindPin](https://appshunter.io/ios/app/findpin/id6781525617)

All apps by Beijing Zizai Technology Co.,Ltd.: https://appshunter.io/developer/736738603

---

*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 2026-08-22.*