# Quindecuple Calc vs monomemo Simple Memo

The clearest difference is ads: monomemo Simple Memo at none against Quindecuple Calc's shown. Quindecuple Calc's advantage is update cadence (every 2 weeks vs every 5 weeks) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

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

Quindecuple Calc ships an update every 2 weeks, monomemo Simple Memo every 5 weeks. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Quindecuple Calc | monomemo Simple Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Size | 36 MB | 0 MB |
| Requires iOS | **15.8.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [VANILLASCRIPT Inc.](https://appshunter.io/developer/1828308118) |

## What reviewers say

### Quindecuple Calc

[App page](https://appshunter.io/ios/app/quindecuple-calc/id6742271873)

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

**In-app purchases:** none


### monomemo Simple Memo

[App page](https://appshunter.io/ios/app/monomemo-simple-memo/id6748969515)

**In-app purchases:** none


## Frequently asked questions

### Is Quindecuple Calc free?

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

### Is monomemo Simple Memo free?

monomemo Simple Memo is free to download, with no in-app purchases.

### Do Quindecuple Calc or monomemo Simple Memo have ads?

Quindecuple Calc shows ads; monomemo Simple Memo does not.

### Which is updated more often, Quindecuple Calc or monomemo Simple Memo?

Quindecuple Calc ships an update every 2 weeks, and monomemo Simple Memo every 5 weeks. Most recently, Quindecuple Calc was updated on October 17, 2026 and monomemo Simple Memo on October 3, 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.*