Comparison

EZ Sign(TM) NFC vs EpubToXtc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EZ Sign(TM) NFC

Easily create and update custom displays for your electronic paper device using your smartphone. Design with text, images, or freehand drawings, then transfer wirelessly via NFC. Content remains visible without power.

Highlights
  • NFC updates with history
  • Text, image, and freehand design tools
  • Template creation and saving
  • Preview designs before upload
  • Optimized for 2-color and 4-color models
  • Brightness and contrast adjustment
Features
Read full description

About the App EZ Sign NFC is the official app for updating the display of the electronic paper device “EZ Sign NFC Model” using your smartphone. Create your own images or text and upload them simply by holding your phone close to the device. Once displayed, your content stays visible without any power source. How to Use (Step by Step) Step 1: Open the App Select your EZ Sign model. You can change the interface language from the “Global” icon (English / 日本語 / 中文). Step 2: Choose a Template Select from Standard, Default, or Custom templates. Custom templates let you freely adjust the layout and save designs for future use. Step 3: Create Your Design Text: Add text or emojis, choose colors, layout, and backgrounds (supports 2-color / 4-color depending on the model). Image: Import from your photo library, crop, apply filters, or take a photo with the in-app camera. Freehand: Draw freely with your finger and adjust line thickness. Step 4: Preview Tap the “Eye” icon to preview your design in Pure Color or Dithering mode. Save completed designs from the “Library “ icon. Step 5: Upload Hold your smartphone close to the EZ Sign device until the upload completes. The displayed content will remain visible without power. Estimated Update Time 2-Color Model: approx. 3 seconds 4-Color Model: approx. 30 seconds Key Features One-tap NFC update (with history and resend options) Integrated editing tools for text, images, and freehand drawings Optimized for both 2-color and 4-color models Brightness & contrast adjustment Template saving, reuse, and preview functions Permissions & Privacy NFC: Used to write data to the EZ Sign device. Photo Library: Used to import and save images. This app does not collect any personal information. All image processing is done locally on your device.

About

EpubToXtc

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説明文: EpubToXtc は、お手持ちのEPUB形式の電子書籍を、Xteinkシリーズなどの電子ペーパー(E Ink)端末で読めるページ画像フォーマット(XTC / XTCH)に変換するアプリです。 ■ こんな方に ・Xteink X4 / X4 Pro / X3 などの電子ペーパー端末をお使いの方 ・お手持ちのEPUBを、日本語の縦書きレイアウトで読みたい方 ・自炊・購入済みの電子書籍を、専用端末向けに最適化して読みたい方 ■ 主な機能 ・縦書き・ルビ(ふりがな)表示に対応した本格的な組版エンジン ・端末機種ごとのプリセット(解像度)と、カスタム解像度指定 ・フォント(明朝体・ゴシック体)、文字サイズ、行間、上下左右の余白を自由に調整 ・変換前に実機の見た目そのままのプレビューを確認可能 ・白黒2階調(XTC)/4階調グレー(XTCH)の出力形式を選択可能 ■ プライバシーについて 変換処理はすべて端末内で完結します。読み込んだEPUBファイルの内容が外部のサーバーに送信されることはありません。詳しくはプライバシーポリシーをご確認ください。 ※ 本アプリは無料でご利用いただけます(広告表示あり)。 ※ 本アプリは、ご自身が正当な権利を有するEPUBファイルの変換を目的としています。

Screenshots

EZ Sign(TM) NFC4 screens
EpubToXtc3 screens

Verdict

The call

The clearest difference is update cadence: EpubToXtc at daily against EZ Sign(TM) NFC's every 2 weeks. EZ Sign(TM) NFC's advantage is iOS requirement (13.0 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

EZ Sign(TM) NFC ships an update every 2 weeks, EpubToXtc daily. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
EZ Sign(TM) NFC versus EpubToXtc: the parameters behind the verdict, then further details
ParameterEZ Sign(TM) NFCEpubToXtc
PriceFreeFree
Rating3.9 (7 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.5
Further details — not scored
Size124 MB4 MB
Age rating4+4+
DeveloperSantekTsutomu Kondo

In-app purchases

None

EZ Sign(TM) NFC

No in-app purchases

None

EpubToXtc

No in-app purchases

Questions

Is EZ Sign(TM) NFC free?
EZ Sign(TM) NFC is free to download, with no in-app purchases.
Is EpubToXtc free?
EpubToXtc is free to download, with no in-app purchases.
Do EZ Sign(TM) NFC or EpubToXtc have ads?
Neither EZ Sign(TM) NFC nor EpubToXtc shows ads.
Which is updated more often, EZ Sign(TM) NFC or EpubToXtc?
EZ Sign(TM) NFC ships an update every 2 weeks, and EpubToXtc daily. Most recently, EZ Sign(TM) NFC was updated on November 5, 2026 and EpubToXtc on November 6, 2026.

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