# Calculator vs AUTH thru

The clearest difference is in-app purchases: AUTH thru at none against Calculator's 4. AUTH thru also leads on ads (none vs shown). Calculator's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 15.0). On price and update cadence there is nothing between them.

Both are free to download. Calculator sells 4 in-app purchases, starting at $0.49 per month. AUTH thru asks for nothing beyond the download.

Calculator ships an update every 6 weeks, AUTH thru every 2 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Calculator | AUTH thru |
| --- | --- | --- |
| 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 | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 375 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [woodsmall inc.](https://appshunter.io/developer/708077492) | [SSE Company Limited](https://appshunter.io/developer/1573705069) |

## 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 |


### AUTH thru

[App page](https://appshunter.io/ios/app/auth-thru/id1584619007)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is AUTH thru free?

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

### Do Calculator or AUTH thru have ads?

Calculator shows ads; AUTH thru does not.

### Which is updated more often, Calculator or AUTH thru?

Calculator ships an update every 6 weeks, and AUTH thru every 2 months. Most recently, Calculator was updated on October 29, 2026 and AUTH thru 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.*