OfficeCalendar Mobile vs Treesoft Office Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OfficeCalendar Mobile
This app synchronizes your calendar and contacts wirelessly between your mobile devices and your desktop Outlook or OfficeCalendar Online. It allows you to view and edit shared calendars, ensuring your schedule is always up-to-date and accessible on the go.
- Bi-directional wireless syncing
- Outlook and OfficeCalendar Online integration
- View and edit shared calendars
- Add new appointments and contacts
- No cables required
- Real-time schedule updates
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OfficeCalendar Mobile transforms your iPhone, iPod Touch, and iPad into a mobile office productivity tool by providing bi-directional wireless syncing between your Outlook, and OfficeCalendar Online, Calendar and Contact folders. Add new appointments to your calendar, or new contacts to your Contacts folder, and have them sync wirelessly from your iPhone to OfficeCalendar Online and Outlook on your desktop and vice versa. With OfficeCalendar Mobile, your iOS devices are also able to view and edit all the OfficeCalendar shared calendars you have access to, so now you can see your colleagues' calendars while out of the office. Important: Only existing OfficeCalendar users and trial users who have implemented OfficeCalendar Online and OfficeCalendar Mobile Server can utilize this app. Benefits: * Wirelessly sync calendar and contact entries from all your devices to Outlook and OfficeCalendar Online. No more cables. * No more worry about syncing your iPhone before leaving the office. Your data is already there, syncing with your mobile device. * Stop double-booking appointments. Your assistant can now see and edit your schedule in Outlook, OfficeCalendar Online and on their Apple device (must be running iOS5.1 or higher). * Know what your colleagues' schedules are while on-the-go and out of the office. iOS device users have access to all OfficeCalendar shared calendars. Requirements: * Compatible with iPhone, iPod Touch, iPad. Support from iOS 5.1 and higher * OfficeCalendar Mobile Server V1.0
Treesoft Office Mobile
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The Treesoft Office Mobile app allows a user read access to a variety of information that can be managed in Treesoft Office. In addition to contact data (addresses and contact persons), appointments and tasks as well as history entries and e-mails can also be viewed. In order to find all these things comfortable, the app has a powerful full-text search. The following functions are also included: # Address management - Display and search for addresses and contact persons - Saving the exported contact person in the contact book - Calling a contact person - Write an e-mail to a contact person - Display of the history for an address # Task and appointment management - Display of tasks and appointments grouped by status # Conversations - Display of the last call logs # Calendar - Display of all appointments in the form of a calendar
Screenshots
Verdict
The clearest difference is update cadence: OfficeCalendar Mobile at every 3 months against Treesoft Office Mobile's every 8 months. OfficeCalendar Mobile also leads on iOS requirement (9.0 vs 13.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OfficeCalendar Mobile ships an update every 3 months, Treesoft Office Mobile every 8 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | OfficeCalendar Mobile | Treesoft Office Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (20 ratings) — better | — |
| Positive reviews | 18.2% of reviews | — |
| Number of ratings | 20 — better | — |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 2 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Lookout Software LLC | Treesoft GmbH & Co. Kommanditgesellschaft |
In-app purchases
OfficeCalendar Mobile
No in-app purchases
Treesoft Office Mobile
No in-app purchases







