# Construct QC vs BuilderFax By Lumber

The clearest difference is rating: BuilderFax By Lumber at 5.0 against Construct QC's 4.3. On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BuilderFax By Lumber holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 11 and 7 respectively.

Construct QC ships an update weekly, BuilderFax By Lumber every 9 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Construct QC | BuilderFax By Lumber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (11 ratings)](https://appshunter.io/ios/app/construct-qc/id1552435031/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/builderfax-by-lumber/id6754037484/reviews)** |
| Number of ratings | **11** | 7 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free | Free |
| Size | 87 MB | 63 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Terabase Energy, Inc.](https://appshunter.io/developer/1533446710) | [Lumberfi Inc](https://appshunter.io/developer/1714403069) |

## What reviewers say

### Construct QC

[App page](https://appshunter.io/ios/app/construct-qc/id1552435031)

This app streamlines quality control for utility-scale solar construction projects. It digitizes inspections, manages punchlists, and allows issue identification using drone imagery, even in remote locations with limited connectivity.

**Highlights:** Digital punchlist management, Geolocated observations, Drone imagery analysis, Photo evidence for remediation, Offline functionality, Team collaboration

**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 Construct QC free?

Construct QC 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.

### Which has better reviews, Construct QC or BuilderFax By Lumber?

BuilderFax By Lumber is rated higher. Construct QC averages 4.3 out of 5 from 11 ratings, while BuilderFax By Lumber averages 5.0 from 7 ratings.

### Do Construct QC or BuilderFax By Lumber have ads?

Neither Construct QC nor BuilderFax By Lumber shows ads.

### Which is updated more often, Construct QC or BuilderFax By Lumber?

Construct QC ships an update weekly, and BuilderFax By Lumber every 9 days. Most recently, Construct QC was updated on October 7, 2026 and BuilderFax By Lumber on October 16, 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.*