# eventOne Onsite vs ContactMate eLead

The clearest difference is update cadence: ContactMate eLead at monthly against eventOne Onsite's every 13 months. ContactMate eLead also leads on iOS requirement (12.0 vs 15.0). 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.

eventOne Onsite ships an update every 13 months, ContactMate eLead monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | eventOne Onsite | ContactMate eLead |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Size | 54 MB | 21 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [eventOne, Inc.](https://appshunter.io/developer/1233694101) | [AIDC Finland Oy](https://appshunter.io/developer/1458859358) |

## What reviewers say

### eventOne Onsite

[App page](https://appshunter.io/ios/app/eventone-onsite/id1463673664)

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

**In-app purchases:** none


### ContactMate eLead

[App page](https://appshunter.io/ios/app/contactmate-elead/id1582156959)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eventOne Onsite free?

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

### Is ContactMate eLead free?

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

### Do eventOne Onsite or ContactMate eLead have ads?

Neither eventOne Onsite nor ContactMate eLead shows ads.

### Which is updated more often, eventOne Onsite or ContactMate eLead?

eventOne Onsite ships an update every 13 months, and ContactMate eLead monthly. Most recently, eventOne Onsite was updated on November 3, 2026 and ContactMate eLead on November 3, 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.*