# Digital Clock Ultra vs Calculator

The clearest difference is in-app purchases: Digital Clock Ultra at none against Calculator's 2. Calculator's advantage is update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Calculator sells 2 in-app purchases, starting at $3.99 per 7 days. Digital Clock Ultra asks for nothing beyond the download.

Digital Clock Ultra 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 | Digital Clock Ultra | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/digital-clock-ultra/id1672768275/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 42 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SeungJun Lee](https://appshunter.io/developer/1435485286) | [Jyoti Ramolia](https://appshunter.io/developer/6805743839) |

## What reviewers say

### Digital Clock Ultra

[App page](https://appshunter.io/ios/app/digital-clock-ultra/id1672768275)

Customize your device's clock with personalized backgrounds, calendar integration, and a year progress tracker. Enjoy a sleek, easy-to-navigate interface for a unique time-keeping experience.

**Highlights:** Customizable digital clock display, 12/24 hour format, Built-in calendar with date marking, Year progress percentage tracker, Personalized photo backgrounds, Sleek and modern UI

**In-app purchases:** none


### 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 Digital Clock Ultra free?

Digital Clock Ultra is free to download, with no in-app purchases.

### Is Calculator free?

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

### Do Digital Clock Ultra or Calculator have ads?

Neither Digital Clock Ultra nor Calculator shows ads.

### Which is updated more often, Digital Clock Ultra or Calculator?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*