# Smart Calculator· vs U

The clearest difference is update cadence: U at every 4 days against Smart Calculator·'s every 7 months. U also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart Calculator· ships an update every 7 months, U every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Smart Calculator· | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/smart-calculator/id6480170210/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 4 MB | 24 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [瑞媚 杨](https://appshunter.io/developer/1731046721) | [Autochain Technology Limited](https://appshunter.io/developer/1724642904) |

## What reviewers say

### Smart Calculator·

[App page](https://appshunter.io/ios/app/smart-calculator/id6480170210)

This app offers a comprehensive suite of mathematical calculation tools, from basic arithmetic to advanced calculus and matrix operations. It also includes unit conversions and saves your calculation history for easy review. Personalize your experience with themes and night mode.

**Highlights:** Comprehensive calculation functions, Advanced mathematical operations, Unit conversion, Calculation history, Personalized themes and night mode

**Features:** macOS Compatibility

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-rich-wms/id6737088772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Calculator· free?

Smart Calculator· is free to download, with no in-app purchases.

### Is U free?

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

### Do Smart Calculator· or U have ads?

Neither Smart Calculator· nor U shows ads.

### Which is updated more often, Smart Calculator· or U?

Smart Calculator· ships an update every 7 months, and U every 4 days. Most recently, Smart Calculator· was updated on October 24, 2026 and U on October 25, 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.*