# RetroClock vs Calculator

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

Both are free to download. RetroClock sells 1 one-off in-app purchase and Calculator sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

RetroClock ships an update every 3 weeks, Calculator every 4 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RetroClock | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/retroclock-desktop-time-dial/id6469766069/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 25 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [伟 雷](https://appshunter.io/developer/1347765042) | [Jyoti Ramolia](https://appshunter.io/developer/6805743839) |

## What reviewers say

### RetroClock

[App page](https://appshunter.io/ios/app/retroclock-desktop-time-dial/id6469766069)

Display customizable clock panels with various themes like digital, flip, and retro radio styles. Enjoy a selection of natural white noises with free combination playback.

**Highlights:** Digital clock themes, Flip clock styles, Retro radio clock, Natural white noises, Combination playback

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $0.99 | one-time |


### Calculator

[App page](https://appshunter.io/ios/app/calculator-ai-math-solver-app/id6807407568)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is RetroClock free?

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

### Is Calculator free?

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

### Do RetroClock or Calculator have ads?

RetroClock shows ads; Calculator does not.

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

RetroClock ships an update every 3 weeks, and Calculator every 4 days. Most recently, RetroClock was updated on October 24, 2026 and Calculator on October 7, 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.*