# QualityStudy PRO vs ColumnCalendar and Memo

The clearest difference is ads: QualityStudy PRO at none against ColumnCalendar and Memo's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QualityStudy PRO ships an update every 2 months, ColumnCalendar and Memo every 3 months. The most recent releases landed on September 9, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | QualityStudy PRO | ColumnCalendar and Memo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (107 ratings)](https://appshunter.io/ios/app/columncalendar-and-memo/id1282972117/reviews)** |
| Number of ratings | — | **107** |
| Positive reviews | — | 83.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 11 MB | 56 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNICUS Co., Ltd.](https://appshunter.io/developer/295442842) | [Shigeo Fukuda](https://appshunter.io/developer/1282972116) |

## What reviewers say

### QualityStudy PRO

[App page](https://appshunter.io/ios/app/qualitystudy-pro/id1159586346)

**Features:** macOS Compatibility

**In-app purchases:** none


### ColumnCalendar and Memo

[App page](https://appshunter.io/ios/app/columncalendar-and-memo/id1282972117)

A straightforward vertical calendar app for managing daily schedules and notes. It offers memo writing, customizable sticky notes for marking dates, and multiple calendar views for different purposes. Easily share your schedule or hide sensitive information.

**Highlights:** Daily memo writing, Sticky note reminders, Customizable sticky note types, Multiple calendar views, Full screen viewing mode, Memo hiding functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is QualityStudy PRO free?

QualityStudy PRO is free to download, with no in-app purchases.

### Is ColumnCalendar and Memo free?

ColumnCalendar and Memo is free to download, with no in-app purchases.

### Do QualityStudy PRO or ColumnCalendar and Memo have ads?

ColumnCalendar and Memo shows ads; QualityStudy PRO does not.

### Which is updated more often, QualityStudy PRO or ColumnCalendar and Memo?

QualityStudy PRO ships an update every 2 months, and ColumnCalendar and Memo every 3 months. Most recently, QualityStudy PRO was updated on September 9, 2026 and ColumnCalendar and Memo on September 26, 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.*