# iSlips vs OfficeCalendar Mobile

The clearest difference is review sentiment: iSlips at 86% against OfficeCalendar Mobile's 18%. iSlips also leads on rating (4.9 vs 2.9). OfficeCalendar Mobile's advantage is price (Free vs $64.99) and update cadence (every 3 months vs every 7 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

OfficeCalendar Mobile is free to download; iSlips costs $64.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iSlips holds the better App Store score, 4.9 against 2.9. Both are backed by a comparable volume of ratings — 14 and 20 respectively. Written reviews point the same way: 86% of iSlips's written reviews are positive against 18% of OfficeCalendar Mobile's.

iSlips ships an update every 7 months, OfficeCalendar Mobile every 3 months. The most recent releases landed on October 21, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | iSlips | OfficeCalendar Mobile |
| --- | --- | --- |
| Price | $64.99 | **Free** |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/islips/id351000027/reviews)** | [2.9 (20 ratings)](https://appshunter.io/ios/app/officecalendar-mobile/id503684472/reviews) |
| Number of ratings | 14 | **20** |
| Positive reviews | **85.7% of reviews** | 18.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 2 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brain Freeze Software](https://appshunter.io/developer/351000030) | [Lookout Software LLC](https://appshunter.io/developer/503684475) |

## What reviewers say

### iSlips

[App page](https://appshunter.io/ios/app/islips/id351000027)

This app allows Timeslips users to quickly track time and expenses on their iPhone. It offers features like automatic time entry for calls, mileage tracking, and wireless data transfer to Timeslips.

**Highlights:** Time Entry with Timers, Expense Entry, Mileage Calculator, Automatic Time Entry for Calls, Wireless Data Transfer to Timeslips, Client Mapping (GPS)

**Features:** macOS Compatibility

**In-app purchases:** none


### OfficeCalendar Mobile

[App page](https://appshunter.io/ios/app/officecalendar-mobile/id503684472)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is iSlips free?

iSlips costs $64.99, with no in-app purchases.

### Is OfficeCalendar Mobile free?

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

### Which has better reviews, iSlips or OfficeCalendar Mobile?

iSlips is rated higher. iSlips averages 4.9 out of 5 from 14 ratings, while OfficeCalendar Mobile averages 2.9 from 20 ratings.

### Do iSlips or OfficeCalendar Mobile have ads?

Neither iSlips nor OfficeCalendar Mobile shows ads.

### Which is updated more often, iSlips or OfficeCalendar Mobile?

iSlips ships an update every 7 months, and OfficeCalendar Mobile every 3 months. Most recently, iSlips was updated on October 21, 2026 and OfficeCalendar Mobile on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*