# Danos Mobile vs BuilderFax By Lumber

The clearest difference is update cadence: BuilderFax By Lumber at every 10 days against Danos Mobile's every 4 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.

Danos Mobile ships an update every 4 months, BuilderFax By Lumber every 10 days. Both last shipped on September 13, 2026.

## The numbers

| Metric | Danos Mobile | BuilderFax By Lumber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/builderfax-by-lumber/id6754037484/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 32 MB | 68 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Primtek LLC](https://appshunter.io/developer/687339633) | [Lumberfi Inc](https://appshunter.io/developer/1714403069) |

## What reviewers say

### Danos Mobile

[App page](https://appshunter.io/ios/app/danos-mobile/id6458192935)

**Features:** macOS Compatibility

**In-app purchases:** none


### BuilderFax By Lumber

[App page](https://appshunter.io/ios/app/builderfax-by-lumber/id6754037484)

Securely store, manage, and share your professional certifications and licenses. Upload documents, categorize them for easy access, and instantly share verified credentials via QR code or SMS link for on-site proof.

**Highlights:** Add and manage certifications, Categorize professional documents, Share verified credentials instantly, QR code and SMS link sharing, Secure verification page

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

**In-app purchases:** none


## Frequently asked questions

### Is Danos Mobile free?

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

### Is BuilderFax By Lumber free?

BuilderFax By Lumber is free to download, with no in-app purchases.

### Do Danos Mobile or BuilderFax By Lumber have ads?

Neither Danos Mobile nor BuilderFax By Lumber shows ads.

### Which is updated more often, Danos Mobile or BuilderFax By Lumber?

Danos Mobile ships an update every 4 months, and BuilderFax By Lumber every 10 days. Most recently, Danos Mobile was updated on September 13, 2026 and BuilderFax By Lumber on September 13, 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.*