# Calculator with reverse screen vs Designable Calculator

The clearest difference is in-app purchases: Calculator with reverse screen at none against Designable Calculator's 1. Calculator with reverse screen also leads on device support (3 vs 1). Designable Calculator's advantage is ads (none vs shown). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Designable Calculator sells 1 in-app purchase, starting at $9.99 per year. Calculator with reverse screen asks for nothing beyond the download.

Calculator with reverse screen ships an update fortnightly, Designable Calculator every 11 days. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Calculator with reverse screen | Designable Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 11 days** |
| Size | 35 MB | 19 MB |
| Requires iOS | **15.8.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Batbayar Batbaatar](https://appshunter.io/developer/1082290586) |

## What reviewers say

### Calculator with reverse screen

[App page](https://appshunter.io/ios/app/calculator-with-reverse-screen/id6497792768)

**Features:** macOS Compatibility

**In-app purchases:** none


### Designable Calculator

[App page](https://appshunter.io/ios/app/designable-calculator/id6587561422)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $9.99 | per year |


## Frequently asked questions

### Is Calculator with reverse screen free?

Calculator with reverse screen is free to download, with no in-app purchases.

### Is Designable Calculator free?

Designable Calculator is free to download, with in-app purchases available.

### Do Calculator with reverse screen or Designable Calculator have ads?

Calculator with reverse screen shows ads; Designable Calculator does not.

### Which is updated more often, Calculator with reverse screen or Designable Calculator?

Calculator with reverse screen ships an update fortnightly, and Designable Calculator every 11 days. Most recently, Calculator with reverse screen was updated on October 4, 2026 and Designable Calculator on October 12, 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.*