Comparison

TRWViewer vs CypherGuard EPUB

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

Head to head

About

TRWViewer

Features

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「TRWViewer」は対応するコントローラとBluetooth接続することができます。 Bluetooth接続後は、ログの開始／終了／ダウンロード操作が可能になります。任意のタイミングでログの開始／終了操作を行って測定データを記録することができます。記録した測定データはダウンロード機能で端末に測定データをダウンロードすることができます。端末にダウンロードした測定データはE-mailでパソコン等に送信することができます。このアプリケーションは、個人／法人に関係なくご使用頂けます。

About

CypherGuard EPUB

This app allows you to view EPUB files, including those protected by encryption. You can read standard EPUBs and encrypted .cgepub files if licensed for viewing on your device.

Highlights

View standard EPUB files
Read encrypted .cgepub files
License-based content access
Supports iPhone and iPad

Features

Read full description

EPUBファイルを暗号技術によって保護する CypherGuard EPUB (https://www.cyphertec.co.jp/services/cypherguard/products/#CypherGuard_EPUB) のビューアーです。通常のEPUBファイルに加えて、暗号化されたEPUBファイル (.cgepubファイル) もライセンス発行を受けて閲覧することができます。 ※注記・CypherGuard EPUBのコンテンツファイル (.cgepubファイル) であっても、配布元がiPhone/iPadでの閲覧を許諾していないものは見られません。

Screenshots

TRWViewer4 screens

CypherGuard EPUB4 screens

Verdict

The call

The clearest difference is update cadence: TRWViewer at every 3 weeks against CypherGuard EPUB's every 6 months. TRWViewer also leads on iOS requirement (12.2 vs 15.0). 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

TRWViewer ships an update every 3 weeks, CypherGuard EPUB every 6 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 6 level

TRWViewer versus CypherGuard EPUB: the parameters behind the verdict, then further details
Parameter	TRWViewer	CypherGuard EPUB
Price	Free	Free
Positive reviews	—	100.0% of reviews
Update frequency	Every 3 weeks — better	Every 6 months
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	12.2 — better	15.0
Further details — not scored
Size	14 MB	55 MB
Age rating	4+	4+
Developer	東邦電子株式会社	CypherTec Inc.

In-app purchases

None

TRWViewer

No in-app purchases

None

CypherGuard EPUB

No in-app purchases

Questions

Is TRWViewer free?

TRWViewer is free to download, with no in-app purchases.

Is CypherGuard EPUB free?

CypherGuard EPUB is free to download, with no in-app purchases.

Do TRWViewer or CypherGuard EPUB have ads?

Neither TRWViewer nor CypherGuard EPUB shows ads.

Which is updated more often, TRWViewer or CypherGuard EPUB?

TRWViewer ships an update every 3 weeks, and CypherGuard EPUB every 6 months. Most recently, TRWViewer was updated on October 26, 2026 and CypherGuard EPUB on October 24, 2026.