# Numsy vs Introvert Guide

The clearest difference is ads: Numsy at none against Introvert Guide's shown. Introvert Guide's advantage is update cadence (every 6 months vs every 21 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Numsy ships an update every 21 months, Introvert Guide every 6 months. Both last shipped on October 10, 2026.

## The numbers

| Metric | Numsy | Introvert Guide |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 8 MB | 35 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stephan Lindow](https://appshunter.io/developer/1516183961) | [Vasyl Horiuk](https://appshunter.io/developer/1842978765) |

## What reviewers say

### Numsy

[App page](https://appshunter.io/ios/app/numsy/id1516183962)

Master numeral system conversions between binary, hexadecimal, and decimal. This tool is designed for computer professionals to quickly convert numbers mentally for tasks like IP addresses and color codes.

**Highlights:** Binary conversion, Hexadecimal conversion, Decimal conversion, Mental math practice, Computer science applications

**In-app purchases:** none


### Introvert Guide

[App page](https://appshunter.io/ios/app/introvert-guide/id6753192018)

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

**In-app purchases:** none


## Frequently asked questions

### Is Numsy free?

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

### Is Introvert Guide free?

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

### Do Numsy or Introvert Guide have ads?

Introvert Guide shows ads; Numsy does not.

### Which is updated more often, Numsy or Introvert Guide?

Numsy ships an update every 21 months, and Introvert Guide every 6 months. Most recently, Numsy was updated on October 10, 2026 and Introvert Guide on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*