# Million Billion Conversion vs Numby

The clearest difference is update cadence: Numby at every 2 days against Million Billion Conversion's every 46 months. Million Billion Conversion's advantage is iOS requirement (10.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Million Billion Conversion ships an update every 46 months, Numby every 2 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Million Billion Conversion | Numby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 days** |
| Size | 26 MB | 16 MB |
| Requires iOS | **10.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [TEAM MILESTONE GP.](https://appshunter.io/developer/1678715921) |

## What reviewers say

### Million Billion Conversion

[App page](https://appshunter.io/ios/app/million-billion-conversion/id1614807408)

**Features:** macOS Compatibility

**In-app purchases:** none


### Numby

[App page](https://appshunter.io/ios/app/numbybeautiful-calculator/id6755832409)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Million Billion Conversion free?

Million Billion Conversion is free to download, with no in-app purchases.

### Is Numby free?

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

### Do Million Billion Conversion or Numby have ads?

Neither Million Billion Conversion nor Numby shows ads.

### Which is updated more often, Million Billion Conversion or Numby?

Million Billion Conversion ships an update every 46 months, and Numby every 2 days. Most recently, Million Billion Conversion was updated on October 27, 2026 and Numby on October 25, 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.*