# Time Calculation vs Ratio Calculator Pro

The clearest difference is price: Ratio Calculator Pro at Free against Time Calculation's $1.99. Ratio Calculator Pro also leads on update cadence (every 5 months vs every 42 months) and iOS requirement (12.1 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

Ratio Calculator Pro is free to download; Time Calculation costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Time Calculation ships an update every 42 months, Ratio Calculator Pro every 5 months. The most recent releases landed on August 3, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Time Calculation | Ratio Calculator Pro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/time-calculation/id1449412502/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 0 MB | 13 MB |
| Requires iOS | 15.6 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) |

## What reviewers say

### Time Calculation

[App page](https://appshunter.io/ios/app/time-calculation/id1449412502)

Easily add and subtract time in hours and minutes without manual rounding. Copy calculation results and review past formulas with a history feature. Includes navigation and deletion tools for formula input.

**Highlights:** Add and subtract hours and minutes, Automatic minute rounding, Copy calculation results, View calculation history, Formula input navigation, Delete formula history

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

**In-app purchases:** none


### Ratio Calculator Pro

[App page](https://appshunter.io/ios/app/ratio-calculator-pro/id6463126280)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculation free?

Time Calculation costs $1.99, with no in-app purchases.

### Is Ratio Calculator Pro free?

Ratio Calculator Pro is free to download, with no in-app purchases.

### Do Time Calculation or Ratio Calculator Pro have ads?

Neither Time Calculation nor Ratio Calculator Pro shows ads.

### Which is updated more often, Time Calculation or Ratio Calculator Pro?

Time Calculation ships an update every 42 months, and Ratio Calculator Pro every 5 months. Most recently, Time Calculation was updated on August 3, 2026 and Ratio Calculator Pro on September 9, 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.*