EinkPin vs WS ETag
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
EinkPin
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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:** β’ **BLE & NFC Transfer** β Transfer images via Bluetooth Low Energy or NFC β’ **Advanced Image Processing** β Built-in dithering algorithms (Floyd-Steinberg, Atkinson, Burkes, Jarvis, Ordered, Blue Noise) for optimal E-INK output β’ **Multi-Color Support** β Black/White, B/W/Red, B/W/Yellow, and 4-color (BWRY) displays β’ **Live Preview** β See how your image will look on the target device before transferring β’ **CLAHE Contrast Enhancement** β Improve image clarity on E-INK screens β’ **Gamma Correction** β Fine-tune brightness and contrast β’ **USM Sharpening** β Enhance edge details for crisper text and graphics β’ **OTA Firmware Update** β Update your E-INK device firmware over BLE β’ **NFC Device Binding** β Quickly pair devices by reading NFC tags β’ **Dual Panel Mode** β Transfer different images to dual-screen devices simultaneously β’ **Multi-language Support** β English and Chinese interfaces **Compatible Devices:** PICKSMART and SEEKINK E-INK displays, including name card tags, shelf labels, phone case displays, and more.
WS ETag
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A NFC App for testing Wavesahre 2.13inch NFC-Powered e-Paper (G) and 2.9inch NFC-Powred e-Paper (G)
Screenshots
Verdict
The clearest difference is update cadence: EinkPin at every 9 days against WS ETag's every 3 weeks. On price, ads, in-app purchases and device support 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.
EinkPin ships an update every 9 days, WS ETag every 3 weeks. The most recent releases landed on October 5, 2026 and October 29, 2026 respectively.
| Parameter | EinkPin | WS ETag |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days β better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details β not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Beijing Zizai Technology Co.,Ltd. | δΌζ ζ¨ |
In-app purchases
EinkPin
No in-app purchases
WS ETag
No in-app purchases
