# Calculator Advance Pro vs Code Rain Clock

The clearest difference is ads: Code Rain Clock at none against Calculator Advance Pro's shown. Code Rain Clock also leads on price ($0.99 vs $4.99). Calculator Advance Pro's advantage is update cadence (fortnightly vs every 6 months) and iOS requirement (10.0 vs 26.2). On in-app purchases and device support there is nothing between them.

Calculator Advance Pro costs $4.99 and Code Rain Clock $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calculator Advance Pro ships an update fortnightly, Code Rain Clock every 6 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Calculator Advance Pro | Code Rain Clock |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/calculator-advance-pro/id1196449938/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Paid | — |
| Size | 32 MB | 1 MB |
| Requires iOS | **10.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Iwatani](https://appshunter.io/developer/702231887) | [kohei yamane](https://appshunter.io/developer/1239055575) |

## What reviewers say

### Calculator Advance Pro

[App page](https://appshunter.io/ios/app/calculator-advance-pro/id1196449938)

This app offers advanced calculation features for business and travel, including currency and cryptocurrency conversion. It mimics the button operations of physical business calculators and allows for formula correction and extensive customization.

**Highlights:** Currency and cryptocurrency conversion, Formula display and correction, Customizable button operations, Mimics physical business calculators, Supports SHARP and CASIO input types, Constant, percent, and tax calculations

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

**In-app purchases:** none


### Code Rain Clock

[App page](https://appshunter.io/ios/app/code-rain-clock/id6758747018)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Advance Pro free?

Calculator Advance Pro costs $4.99, with no in-app purchases.

### Is Code Rain Clock free?

Code Rain Clock costs $0.99, with no in-app purchases.

### Do Calculator Advance Pro or Code Rain Clock have ads?

Calculator Advance Pro shows ads; Code Rain Clock does not.

### Which is updated more often, Calculator Advance Pro or Code Rain Clock?

Calculator Advance Pro ships an update fortnightly, and Code Rain Clock every 6 months. Most recently, Calculator Advance Pro was updated on October 24, 2026 and Code Rain Clock on October 12, 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.*