Soliton KeyManager vs eYACHO Viewer 6
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Soliton KeyManager
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* Description: "Soliton KeyManager" is the application to install and manage digital certificate for several applications provided by Soliton. For example, the installed digital certificate can be used for “Soliton SecureBrowser”, the web browser with several strong security features. * Features: - Digital certificate installation Soliton KeyManager can install digital certificate by any of the following ways: - Workflow feature of NetAttest EPS-ap, Soliton IDManager, Soliton OneGate Soliton KeyManager can connect to NetAttest EPS-ap,Soliton IDManager, Soliton OneGate, then it can request and install digital certificate. - iTunes Using file sharing feature of iTunes, you can copy digital certificate (pkcs#12 file) into Soliton KeyManager, and install it. - Email Renaming the suffix of digital certificate (pkcs#12 file) into “.pkcs12” and send it via email to the device, you can open the file with Soliton KeyManager, then install it. ** NOTICE ** - The certificate installed from this App is only available on Apps developed by Soliton Systems K.K.(SecureBrowser/SecureDesktop/FileZen). For the details of Soliton SecureBrowser/Soliton SecureGateway, please visit the website below: https://www.soliton.co.jp/ssb/ For the details of NetAttest EPS-ap, please visit the website below: https://www.soliton.co.jp/eps/ By downloading, you agree to the Terms of Use at: https://www.soliton.co.jp/eula/
eYACHO Viewer 6
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「eYACHO Viewer」は、「eYACHO for Business」を合わせてインストールして頂くと便利にお使いいただけます。 「eYACHO for Business」上の文書共有中の画面から、「eYACHO Viewer」で同じ文書の同じページを開くことができます。 「eYACHO for Business」とほぼ同等の機能があるので、Split Viewを利用するとデジタル野帳アプリ「eYACHO for Business」と合わせて、切り替えながら使うことで次のような操作が可能となります。 ・閲覧しながらメモ書き ・会議中に現在のページを参照しながら、別のページを修正 ・別々のページを同時に閲覧 このほかにも文書操作の用途が大きく広がります。 * eYACHO Viewerのご利用には専用のアカウントが必要です。 ■ 動作環境 ■ <OS> OS 13.6 以降 M1 Mac
Screenshots
Verdict
The clearest difference is update cadence: eYACHO Viewer 6 at monthly against Soliton KeyManager's every 6 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Soliton KeyManager ships an update every 6 months, eYACHO Viewer 6 monthly. The most recent releases landed on January 26, 2026 and September 17, 2026 respectively.
| Parameter | Soliton KeyManager | eYACHO Viewer 6 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 13.6 |
| Further details — not scored | ||
| Size | 6 MB | 276 MB |
| Age rating | 4+ | 17+ |
| Developer | Soliton Systems K.K. | MetaMoJi Corporation |
In-app purchases
Soliton KeyManager
No in-app purchases
eYACHO Viewer 6
No in-app purchases







