# Smart Calculator· vs See through Clock

The clearest difference is ads: Smart Calculator· at none against See through Clock's shown. See through Clock's advantage is update cadence (fortnightly vs every 7 months). On price, in-app purchases, device support and iOS requirement 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, See through Clock fortnightly. The most recent releases landed on September 20, 2026 and August 3, 2026 respectively.

## The numbers

| Metric | Smart Calculator· | See through Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-calculator/id6480170210/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 4 MB | 35 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [瑞媚 杨](https://appshunter.io/developer/1731046721) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## 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


### See through Clock

[App page](https://appshunter.io/ios/app/see-through-clock/id6737430785)

**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 See through Clock free?

See through Clock is free to download, with no in-app purchases.

### Do Smart Calculator· or See through Clock have ads?

See through Clock shows ads; Smart Calculator· does not.

### Which is updated more often, Smart Calculator· or See through Clock?

Smart Calculator· ships an update every 7 months, and See through Clock fortnightly. Most recently, Smart Calculator· was updated on September 20, 2026 and See through Clock on August 3, 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.*