# Lottery Probability Calculator vs ContactExport+

The clearest difference is in-app purchases: Lottery Probability Calculator at none against ContactExport+'s 2. Lottery Probability Calculator also leads on iOS requirement (13.0 vs 17.0). ContactExport+'s advantage is update cadence (every 5 weeks vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. ContactExport+ sells 2 in-app purchases, starting at $3.99 per month. Lottery Probability Calculator asks for nothing beyond the download.

Lottery Probability Calculator ships an update every 10 months, ContactExport+ every 5 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lottery Probability Calculator | ContactExport+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 10 months | **Every 5 weeks** |
| Size | 17 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) | [Hatching Point LLC](https://appshunter.io/developer/1860158157) |

## What reviewers say

### Lottery Probability Calculator

[App page](https://appshunter.io/ios/app/lottery-probability-calculator/id6448104037)

**Features:** macOS Compatibility

**In-app purchases:** none


### ContactExport+

[App page](https://appshunter.io/ios/app/contactexport-plus/id6760079615)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $3.99 | per month |
| Yearly Premium | $19.99 | per year |


## Frequently asked questions

### Is Lottery Probability Calculator free?

Lottery Probability Calculator is free to download, with no in-app purchases.

### Is ContactExport+ free?

ContactExport+ is free to download, with in-app purchases available.

### Do Lottery Probability Calculator or ContactExport+ have ads?

Both Lottery Probability Calculator and ContactExport+ show ads.

### Which is updated more often, Lottery Probability Calculator or ContactExport+?

Lottery Probability Calculator ships an update every 10 months, and ContactExport+ every 5 weeks. Most recently, Lottery Probability Calculator was updated on October 27, 2026 and ContactExport+ on October 28, 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.*