# Classicalc calculator vs Simple Time Converter

The clearest difference is price: Simple Time Converter at Free against Classicalc calculator's $0.99. Simple Time Converter also leads on rating (5.0 vs 3.8) and update cadence (every 3 weeks vs every 20 months). Classicalc calculator's advantage is ratings volume (13 vs 1) and device support (5 vs 3). On ads and in-app purchases there is nothing between them.

Simple Time Converter is free to download; Classicalc calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Time Converter holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Classicalc calculator has 13 ratings behind it against 1, so its average is the more settled of the two.

Classicalc calculator ships an update every 20 months, Simple Time Converter every 3 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Classicalc calculator | Simple Time Converter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.8 (13 ratings)](https://appshunter.io/ios/app/classicalc-calculator/id989434780/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-time-converter/id6761152152/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 14 MB | 2 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lukasz Kowalski](https://appshunter.io/developer/792954012) | [Irene Ryu](https://appshunter.io/developer/1888045148) |

## What reviewers say

### Classicalc calculator

[App page](https://appshunter.io/ios/app/classicalc-calculator/id989434780)

This calculator app offers instant calculations as you type, following the mathematical order of operations. It features unique piano sound themes and allows seamless continuation of calculations across iPhone and Apple Watch. Your equations are automatically saved for convenience.

**Highlights:** Instant calculation as you type, Mathematical order of operators, Cross-device continuity (iPhone/Watch), Automatic equation saving, 14 piano sound themes, Copy result to clipboard

**In-app purchases:** none


### Simple Time Converter

[App page](https://appshunter.io/ios/app/simple-time-converter/id6761152152)

This lightweight utility app performs simple time conversions without accessing any user data. Its core function is a straightforward algorithm for converting time values.

**Highlights:** Time conversion algorithm, Lightweight design, No user data access, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Classicalc calculator free?

Classicalc calculator costs $0.99, with no in-app purchases.

### Is Simple Time Converter free?

Simple Time Converter is free to download, with no in-app purchases.

### Which has better reviews, Classicalc calculator or Simple Time Converter?

Simple Time Converter is rated higher. Classicalc calculator averages 3.8 out of 5 from 13 ratings, while Simple Time Converter averages 5.0 from 1 ratings.

### Do Classicalc calculator or Simple Time Converter have ads?

Neither Classicalc calculator nor Simple Time Converter shows ads.

### Which is updated more often, Classicalc calculator or Simple Time Converter?

Classicalc calculator ships an update every 20 months, and Simple Time Converter every 3 weeks. Most recently, Classicalc calculator was updated on October 3, 2026 and Simple Time Converter on October 2, 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.*