# Door Data Systems vs NWLB

The clearest difference is update cadence: NWLB at every 8 days against Door Data Systems's every 2 months. NWLB also leads on iOS requirement (12.4 vs 15.1). 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.

Door Data Systems ships an update every 2 months, NWLB every 8 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Door Data Systems | NWLB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Size | 40 MB | 34 MB |
| Requires iOS | 15.1 | **12.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Door Data Systems](https://appshunter.io/developer/1530827741) | [North West Local Business Ltd](https://appshunter.io/developer/1714726479) |

## What reviewers say

### Door Data Systems

[App page](https://appshunter.io/ios/app/door-data-systems/id1538987604)

**Features:** Vision Pro support

**In-app purchases:** none


### NWLB

[App page](https://appshunter.io/ios/app/nwlb/id6471039820)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Door Data Systems free?

Door Data Systems is free to download, with no in-app purchases.

### Is NWLB free?

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

### Do Door Data Systems or NWLB have ads?

Neither Door Data Systems nor NWLB shows ads.

### Which is updated more often, Door Data Systems or NWLB?

Door Data Systems ships an update every 2 months, and NWLB every 8 days. Most recently, Door Data Systems was updated on October 6, 2026 and NWLB on October 8, 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.*