# Building Start vs CxAlloy

The clearest difference is rating: CxAlloy at 4.3 against Building Start's 3.4. CxAlloy also leads on ratings volume (492 vs 8) and update cadence (every 2 weeks vs monthly). Building Start's advantage is monetization model (free vs free with in-app purchases) and review sentiment (50% vs 27%). 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.

CxAlloy holds the better App Store score, 4.3 against 3.4. That said, the two scores are not equally well evidenced: CxAlloy has 492 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 50% of Building Start's written reviews are positive against 27% of CxAlloy's, so the app with the better star average is not the one people write more warmly about.

Building Start ships an update monthly, CxAlloy every 2 weeks. The most recent releases landed on August 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Building Start | CxAlloy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (8 ratings)](https://appshunter.io/ios/app/building-start/id442975774/reviews) | **[4.3 (492 ratings)](https://appshunter.io/ios/app/cxalloy/id865607943/reviews)** |
| Number of ratings | 8 | **492** |
| Positive reviews | **50.0% of reviews** | 26.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 99 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Building Start](https://appshunter.io/developer/442975777) | [WorkingBuildings, LLC](https://appshunter.io/developer/865607946) |

## What reviewers say

### Building Start

[App page](https://appshunter.io/ios/app/building-start/id442975774)

This platform digitizes field testing for construction and engineering projects. It allows for centralized test plan creation and offline execution on field devices, synchronizing data back to the cloud upon completion.

**Highlights:** Centralized test plan authoring, Push test plans to field devices, Offline field testing capabilities, Data synchronization to cloud, Digital capture of construction projects, Support for TAB, Building Startup, Commissioning, Energy Audits

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

**In-app purchases:** none


### CxAlloy

[App page](https://appshunter.io/ios/app/cxalloy/id865607943)

Manage commissioning work for construction projects with collaborative issue tracking, asset management, and quality verification. Supports offline use with automatic syncing and allows for detailed documentation with photos and files.

**Highlights:** Offline functionality, Collaborative issue management, Asset tracking, Quality verification checklists, Test completion, Automatic data sync, Add photos and files

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

**In-app purchases:** none

**What reviewers like**

- 👍 Brilliant iOS app
- 👍 Top-notch support
- 👍 Seamless syncing across devices
- 👍 Intuitive UI design
- 👍 Useful for quality assurance

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 Slow response times
- 🐛 Syncing issues
- 🐛 App freezing
- 🐛 App won't open

**Reported bugs**

- Equipment slider freezes after update
- App crashes when uploading photos
- App crashes when answering checklist questions
- App crashes when syncing
- Too many syncing issues

**Requested features**

- Reenable batch passing and comments


## Frequently asked questions

### Is Building Start free?

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

### Is CxAlloy free?

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

### Which has better reviews, Building Start or CxAlloy?

CxAlloy is rated higher. Building Start averages 3.4 out of 5 from 8 ratings, while CxAlloy averages 4.3 from 492 ratings.

### Do Building Start or CxAlloy have ads?

Neither Building Start nor CxAlloy shows ads.

### Which is updated more often, Building Start or CxAlloy?

Building Start ships an update monthly, and CxAlloy every 2 weeks. Most recently, Building Start was updated on August 16, 2026 and CxAlloy on September 18, 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.*