# Absolute Board Calendar vs Operation Drive

The clearest difference is price: Operation Drive at Free against Absolute Board Calendar's $2.99. Operation Drive also leads on device support (3 vs 1). Absolute Board Calendar's advantage is update cadence (every 2 months vs every 5 months). On ads, in-app purchases and iOS requirement there is nothing between them.

Operation Drive is free to download; Absolute Board Calendar costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Absolute Board Calendar ships an update every 2 months, Operation Drive every 5 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Absolute Board Calendar | Operation Drive |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.6 (8 ratings)](https://appshunter.io/ios/app/absolute-board-calendar/id441788873/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 8 MB | 43 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Hyeoseong Hwang](https://appshunter.io/developer/369169972) | [Kodnet Mobile LTD](https://appshunter.io/developer/1583247942) |

## What reviewers say

### Absolute Board Calendar

[App page](https://appshunter.io/ios/app/absolute-board-calendar/id441788873)

This app allows users to plan their day and take notes through drawing and handwriting. It offers unlimited pages for daily entries and organizes them chronologically, providing a unique and convenient way to manage your life.

**Highlights:** Drawing and handwriting daily planning, Unlimited pages for notes and ideas, Calendar from 1900 to 2043, Customizable holidays, Solar and lunar date conversion, Unlimited board size, Email drawing snapshots

**Features:** macOS Compatibility

**In-app purchases:** none


### Operation Drive

[App page](https://appshunter.io/ios/app/operation-drive/id6745356605)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Absolute Board Calendar free?

Absolute Board Calendar costs $2.99, with no in-app purchases.

### Is Operation Drive free?

Operation Drive is free to download, with no in-app purchases.

### Do Absolute Board Calendar or Operation Drive have ads?

Neither Absolute Board Calendar nor Operation Drive shows ads.

### Which is updated more often, Absolute Board Calendar or Operation Drive?

Absolute Board Calendar ships an update every 2 months, and Operation Drive every 5 months. Most recently, Absolute Board Calendar was updated on October 25, 2026 and Operation Drive on October 25, 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.*