# Robot Counter vs Nixie Calculator

The clearest difference is in-app purchases: Robot Counter at none against Nixie Calculator's 1. Robot Counter also leads on iOS requirement (12.0 vs 15.0). Nixie Calculator's advantage is ads (none vs shown) and update cadence (monthly vs every 20 months). On price and device support there is nothing between them.

Both are free to download. Nixie Calculator sells 1 one-off in-app purchase. Robot Counter asks for nothing beyond the download.

Robot Counter ships an update every 20 months, Nixie Calculator monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Robot Counter | Nixie Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (15 ratings)](https://appshunter.io/ios/app/nixie-calculator/id1489019109/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 20 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 36 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kyohei Hakka](https://appshunter.io/developer/1279110012) | [UNB SYSTEMS PTY LTD](https://appshunter.io/developer/1514057763) |

## What reviewers say

### Robot Counter

[App page](https://appshunter.io/ios/app/robot-counter/id1280382532)

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

**In-app purchases:** none


### Nixie Calculator

[App page](https://appshunter.io/ios/app/nixie-calculator/id1489019109)

This calculator app features a digital paper tape to display entries, which can be copied or shared. It offers various customization options like color schemes, rounding, and display modes, blending retro aesthetics with modern device technology.

**Highlights:** Paper tape for entry display, Copy and paste functionality, Customizable color schemes, Adjustable rounding and exponential modes, Classic Nixie font option, Thousand separator styles

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Color Layouts | $2.99 | one-time |


## Frequently asked questions

### Is Robot Counter free?

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

### Is Nixie Calculator free?

Nixie Calculator is free to download, with in-app purchases available.

### Do Robot Counter or Nixie Calculator have ads?

Robot Counter shows ads; Nixie Calculator does not.

### Which is updated more often, Robot Counter or Nixie Calculator?

Robot Counter ships an update every 20 months, and Nixie Calculator monthly. Most recently, Robot Counter was updated on October 26, 2026 and Nixie Calculator on October 24, 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.*