# KARITA vs Memo Stacker

The clearest difference is in-app purchases: KARITA at none against Memo Stacker's 2. KARITA also leads on ads (none vs shown). Memo Stacker's advantage is update cadence (every 2 weeks vs every 27 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Memo Stacker sells 2 in-app purchases, starting at $2.99 per month. KARITA asks for nothing beyond the download.

KARITA ships an update every 27 months, Memo Stacker every 2 weeks. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | KARITA | Memo Stacker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 27 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 90 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Nakakuki Masaya](https://appshunter.io/developer/1610313307) | [Trivial Ventures](https://appshunter.io/developer/1772834670) |

## What reviewers say

### KARITA

[App page](https://appshunter.io/ios/app/karita/id1614177686)

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

**In-app purchases:** none


### Memo Stacker

[App page](https://appshunter.io/ios/app/memo-stacker-notes-and-diary/id6736639271)

This app helps you capture and organize your thoughts, ideas, and daily logs. It automatically stacks your entries chronologically, making it easy to look back on your past records through a visual timeline. Enjoy customizable features and secure data storage options.

**Highlights:** Timeline notes, Auto-organized by date, Habit tracking stats, Modern font customization, Dark mode support, iCloud Drive integration, Local data storage option

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro plan Monthly | $2.99 | per month |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is KARITA free?

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

### Is Memo Stacker free?

Memo Stacker is free to download, with in-app purchases available.

### Do KARITA or Memo Stacker have ads?

Memo Stacker shows ads; KARITA does not.

### Which is updated more often, KARITA or Memo Stacker?

KARITA ships an update every 27 months, and Memo Stacker every 2 weeks. Most recently, KARITA was updated on October 9, 2026 and Memo Stacker on October 2, 2026.

---

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