eDocReader vs CACHATTO WebViewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eDocReader
Organize and annotate PDF documents with a tabbed interface and bookmarking features. Collaborate in real-time with paperless meetings, synchronizing viewing and drawings across multiple devices.
- Tabbed PDF interface
- Page bookmarking
- Thumbnail view
- Drawing and text annotation
- Magnifier mode
- Paperless meeting synchronization
- Connect up to 8 devices
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[Main Features] - Display multiple PDF files in a tabbed interface that allows to instantly change between tabs. - Bookmark pages within a PDF and access them instantly. - View bookmarked pages as a thumbnail list and select thumbnails to view them. - View document pages as a thumbnail list; select any thumbnail to display the page. - Add drawings and text with Drawing Mode; make more precise edits using Magnifier Mode. Keyboard entry is also supported. [Personal Area Meeting] Allows you to conduct a paperless meeting between devices. - Send and receive documents from other devices connected via Personal Area Meeting - Synchronize viewing actions between connected devices (page turns, drawings displayed on other devices) - Connect with up to 8 devices (Total number of devices may vary based on actual network conditions).
CACHATTO WebViewer
This application enhances the portal integration capabilities of CACHATTO, a leading remote access service for businesses. It provides secure access to internal company resources like email and file servers from smart devices, without leaving sensitive data on the device. The app implements robust security measures to protect corporate information.
- Enhances CACHATTO portal integration
- Secure access to internal resources
- Prevents data leakage
- Strong authentication methods
- Copy-paste prevention
- No VPN required
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CACHATTO WebViewerは、CACHATTOのポータル連携機能を強化するための専用アプリです。 ■CACHATTOとは? CACHATTOは、シェアNo.1法人向けリモートアクセスサービスです。 スマートデバイスの業務利用では、端末の紛失、盗難、ウイルス感染から生じる情報漏洩リスクが課題です。 CACHATTOは、最高レベルのセキュリティ下でのリモートアクセス環境を実現し、企業の情報を守ります。 [機能・特長] ・社内のメール、グループウェア、ファイルサーバなどをご利用いただけます。 ・端末に閲覧した情報を残しません。 ・ワンタイムパスワード認証、端末個体認証など、強固な認証を実装しています。 ・コピー&ペースト防止機能などにより閲覧情報の持ち出しを禁止できます。 ・社内システムに大きな変更をすることなく導入できます。VPN通信は必要ありません。 ■ご利用に際しての注意事項 ・CACHATTOのご利用に際しては、企業内にCACHATTOサーバーを導入してください。
Screenshots
Verdict
The clearest difference is review sentiment: eDocReader at 94% against CACHATTO WebViewer's 0%. CACHATTO WebViewer's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.
| Parameter | eDocReader | CACHATTO WebViewer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 94.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | NIPPON INFORMATION CO.,LTD. | e-Jan Networks Co. |
Customer experience
eDocReader
CACHATTO WebViewer
In-app purchases
eDocReader
No in-app purchases
CACHATTO WebViewer
No in-app purchases









