# More or Less Calculator vs Fast Clock

The clearest difference is review sentiment: More or Less Calculator at 100% against Fast Clock's 25%. More or Less Calculator also leads on iOS requirement (11.0 vs 15.6). Fast Clock's advantage is update cadence (every 2 days vs every 15 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

More or Less Calculator ships an update every 15 months, Fast Clock every 2 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | More or Less Calculator | Fast Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (5 ratings)](https://appshunter.io/ios/app/fast-clock/id6448879724/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 1 MB | 5 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alessandro Cancellario](https://appshunter.io/developer/538881497) | [Kevin Snow](https://appshunter.io/developer/305581830) |

## What reviewers say

### More or Less Calculator

[App page](https://appshunter.io/ios/app/more-or-less-calculator/id545994436)

This utility app allows for quick calculation of percentages, including tax amounts. Users can easily adjust percentages using a slider or preset options for dynamic calculations.

**Highlights:** Calculate percentage by more or less, Calculate tax amounts, Dynamically change percentage with slider, Use preset percentages, Email support for issues

**Features:** macOS Compatibility

**In-app purchases:** none


### Fast Clock

[App page](https://appshunter.io/ios/app/fast-clock/id6448879724)

This application simulates a fast clock for model railroads. It allows for custom logos and maps, and can synchronize with external systems like JMRI or use real-time.

**Highlights:** Model railroad fast clock simulation, Custom logo support, Custom map integration, JMRI time synchronization, Real-time clock option

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

**In-app purchases:** none


## Frequently asked questions

### Is More or Less Calculator free?

More or Less Calculator is free to download, with no in-app purchases.

### Is Fast Clock free?

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

### Do More or Less Calculator or Fast Clock have ads?

Neither More or Less Calculator nor Fast Clock shows ads.

### Which is updated more often, More or Less Calculator or Fast Clock?

More or Less Calculator ships an update every 15 months, and Fast Clock every 2 days. Most recently, More or Less Calculator was updated on October 10, 2026 and Fast Clock on October 7, 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.*