PrimeDrive vs Optimal Biz Docs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrimeDrive
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This is iPad/iPhone application for PrimeDrive Service. PrimeDrive allows you to access documents stored on PrimeDrive server by using iPad/iPhone. iPad/iPhone application is included the functions to perform a presentation easily and to send presentation documents safely. Features: - Documents view, send, move, rename, and delete, which are allowed in the corporate policy. - Presentation functions. (Full screen, page view, pointer) - Files / Folders search. - PDF annotation. - File view / edit in the Microsoft Office Apps. (PowerPoint / Word / Excel) - Auto PDF conversion. - Cache deletion policy. - Cache encryption. - Download link issue and disable. - File upload from camera roll (multiple), mail attachment and open in. - Function limitation based on policy. - Favorites. (Set, delete) - Operation log record. - PKI authentication (option) - SAML authentication, LDAPS authentication. (Registration is required) - Disaster Recovery functions. * The main site should generally be used.
Optimal Biz Docs
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Optimal Biz Docs Client is a client application for "Optimal Biz Docs," which is an MCM(*) solution provided by OPTiM Corporation. With Optimal Biz Docs, you can securely and efficiently share various kinds of files and view files created on PC on your smart phone. This application is only available for Premium Users of Optimal Biz Docs. Supports both Japanese and English. *MCM stands for "Mobile Content Management," a solution for companies to securely share files such as internal documentations over smart phones and tablet devices.
Screenshots
Verdict
The clearest difference is update cadence: PrimeDrive at every 3 months against Optimal Biz Docs's every 7 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.
PrimeDrive ships an update every 3 months, Optimal Biz Docs every 7 months. Both last shipped on September 17, 2026.
| Parameter | PrimeDrive | Optimal Biz Docs |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 80 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | SoftBank Corp. | OPTiM Corporation |
In-app purchases
PrimeDrive
No in-app purchases
Optimal Biz Docs
No in-app purchases






