# calcS16lite vs Geek Math

The clearest difference is rating: Geek Math at 5.0 against calcS16lite's 1.0. calcS16lite's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. Geek Math sells 1 one-off in-app purchase. calcS16lite asks for nothing beyond the download.

Geek Math holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

calcS16lite ships an update every 6 weeks, Geek Math every 10 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | calcS16lite | Geek Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/calcs16lite/id876927510/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/geek-math-linking-numbers/id6474589909/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 10 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 29 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [uto toshiki](https://appshunter.io/developer/876927513) | [QQ TSUBASA](https://appshunter.io/developer/568750169) |

## What reviewers say

### calcS16lite

[App page](https://appshunter.io/ios/app/calcs16lite/id876927510)

A free calculator app offering hexadecimal calculations, variable font sizes, and metric prefix support. It features a moving view for typing accuracy and a clock display after 30 seconds of inactivity. The background color changes based on the time of day.

**Highlights:** Hexadecimal calculation, Moving-view for typing accuracy, Variable font size, Metric prefix support, SplitView/SlideView support (iPad), Clock display, Time-based background color

**Features:** macOS Compatibility

**In-app purchases:** none


### Geek Math

[App page](https://appshunter.io/ios/app/geek-math-linking-numbers/id6474589909)

This calculator app features an intuitive column layout for multiple equations, allowing real-time modification of numbers and operators. It offers interactive linking of numbers and a unique lock feature to protect important values.

**Highlights:** Intuitive column layout, Real-time equation modification, Linked numbers for interactive calculation, Lock feature for number protection, Multi-line display, Theme selection

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium No ad & more math rows | $1.99 | one-time |


## Frequently asked questions

### Is calcS16lite free?

calcS16lite is free to download, with no in-app purchases.

### Is Geek Math free?

Geek Math is free to download, with in-app purchases available.

### Which has better reviews, calcS16lite or Geek Math?

Geek Math is rated higher. calcS16lite averages 1.0 out of 5 from 1 ratings, while Geek Math averages 5.0 from 1 ratings.

### Do calcS16lite or Geek Math have ads?

Geek Math shows ads; calcS16lite does not.

### Which is updated more often, calcS16lite or Geek Math?

calcS16lite ships an update every 6 weeks, and Geek Math every 10 months. Most recently, calcS16lite was updated on September 21, 2026 and Geek Math 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.*