# Calculator S.L.U.Y.S+ vs Customizable calculator

The clearest difference is price: Customizable calculator at Free against Calculator S.L.U.Y.S+'s $1.99. Customizable calculator also leads on update cadence (every 2 days vs every 3 months) and iOS requirement (13.0 vs 15.5). Calculator S.L.U.Y.S+'s advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Customizable calculator is free to download; Calculator S.L.U.Y.S+ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calculator S.L.U.Y.S+ ships an update every 3 months, Customizable calculator every 2 days. The most recent releases landed on June 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Calculator S.L.U.Y.S+ | Customizable calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 3 MB | 202 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ImagineSpark Inc.](https://appshunter.io/developer/1517195068) | [Hisashi Yoshizawa](https://appshunter.io/developer/1770019728) |

## What reviewers say

### Calculator S.L.U.Y.S+

[App page](https://appshunter.io/ios/app/calculator-sluys-plus/id1517195069)

**Features:** macOS Compatibility

**In-app purchases:** none


### Customizable calculator

[App page](https://appshunter.io/ios/app/customizable-calculator/id6740001661)

**In-app purchases:** none


## Frequently asked questions

### Is Calculator S.L.U.Y.S+ free?

Calculator S.L.U.Y.S+ costs $1.99, with no in-app purchases.

### Is Customizable calculator free?

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

### Do Calculator S.L.U.Y.S+ or Customizable calculator have ads?

Customizable calculator shows ads; Calculator S.L.U.Y.S+ does not.

### Which is updated more often, Calculator S.L.U.Y.S+ or Customizable calculator?

Calculator S.L.U.Y.S+ ships an update every 3 months, and Customizable calculator every 2 days. Most recently, Calculator S.L.U.Y.S+ was updated on June 28, 2026 and Customizable calculator 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.*