# Lead Scanning vs Big Data LDN

The clearest difference is update cadence: Lead Scanning at every 5 months against Big Data LDN's every 13 months. 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.

Lead Scanning ships an update every 5 months, Big Data LDN every 13 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Lead Scanning | Big Data LDN |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 13 months |
| Monetization | Free | — |
| Size | 7 MB | 128 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [pretix GmbH](https://appshunter.io/developer/1191463719) | [Reed Exhibitions Ltd](https://appshunter.io/developer/540373170) |

## What reviewers say

### Lead Scanning

[App page](https://appshunter.io/ios/app/lead-scanning-pretixlead/id1576310764)

This app allows event exhibitors and sponsors using the pretix ticketing system to scan attendee badges. Access attendee contact information and record notes from conversations. Download collected data for marketing purposes.

**Highlights:** Scan attendee badges, View attendee contact information, Record conversation notes, Download contact data, Event integration with pretix ticketing

**Features:** Vision Pro support

**In-app purchases:** none


### Big Data LDN

[App page](https://appshunter.io/ios/app/big-data-ldn/id6593660504)

**In-app purchases:** none


## Frequently asked questions

### Is Lead Scanning free?

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

### Is Big Data LDN free?

Big Data LDN is free to download, with no in-app purchases.

### Do Lead Scanning or Big Data LDN have ads?

Neither Lead Scanning nor Big Data LDN shows ads.

### Which is updated more often, Lead Scanning or Big Data LDN?

Lead Scanning ships an update every 5 months, and Big Data LDN every 13 months. Most recently, Lead Scanning was updated on November 3, 2026 and Big Data LDN on November 4, 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.*