# Calculator vs Decio

The clearest difference is ads: Decio at none against Calculator's shown. Decio also leads on update cadence (fortnightly vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator sells 4 in-app purchases, starting at $0.49 per month and Decio sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Calculator ships an update every 6 weeks, Decio fortnightly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Calculator | Decio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (45 ratings)](https://appshunter.io/ios/app/calculator-simple-and-stylish/id716402949/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 80 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [woodsmall inc.](https://appshunter.io/developer/708077492) | [Mark Rozario](https://appshunter.io/developer/1700407020) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-simple-and-stylish/id716402949)

This app offers a stylish and user-friendly calculator experience with advanced features like percent, constant, exponential, and compound interest calculations. Customize themes and display settings to suit your preferences.

**Highlights:** Percent calculations, Constant calculations (Casio-style), Exponential calculations, Compound interest calculations, Input up to 12 digits, Customizable themes and display, Decimal rounding settings

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $0.49 | per month |
| 6 months plan | $2.99 | per 6 months |
| Annual plan | $5.99 | per year |
| Pay in full | $7.99 | one-time |


### Decio

[App page](https://appshunter.io/ios/app/decio/id6456400796)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decio Premium Membership | $0.99 | per month |
| Decio Premium Membership | $9.99 | per year |


## Frequently asked questions

### Is Calculator free?

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

### Is Decio free?

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

### Do Calculator or Decio have ads?

Calculator shows ads; Decio does not.

### Which is updated more often, Calculator or Decio?

Calculator ships an update every 6 weeks, and Decio fortnightly. Most recently, Calculator was updated on October 29, 2026 and Decio on October 27, 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.*