Building Start vs CxAlloy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Building Start
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.
- 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
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Building Start is a field services platform used in construction and engineering to perform centralized test plan authoring and management and push the test plan from the cloud to field devices to perform on-site field testing digitally. Once a field technician has been assigned a project, they can receive the project on their field device and perform the test plan and responses offline and synchronize them back into the cloud when they complete their work for the day. Building Start is widely used in the construction industry with over 30,000 construction projects digitally captured in such efforts as Test, Adjust & Balance (TAB), Building Startup, Building Commissioning (LEED, Green Building,etc) and Energy Audits.
CxAlloy
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.
- Offline functionality
- Collaborative issue management
- Asset tracking
- Quality verification checklists
- Test completion
- Automatic data sync
- Add photos and files
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CxAlloy TQ helps manage commissioning work for design and construction projects, recommissioning, and retrocommissioning. It provides collaborative issue management, asset tracking, and quality verification through checklists and tests. App features: - Offline - the entire app is built around the concept of offline use. - Download multiple projects - Automatic sync - Create field observations and issues - Complete checklists - Complete tests - Update equipment - Update issues - Download and view checklist, test, issue, and equipment files - Add photos and files to issues, checklists, tests, and equipment - Add and assign Tasks **Requires CxAlloy TQ account.**
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Building Start | CxAlloy |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (8 ratings) | 4.3 (492 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 26.9% of reviews |
| Number of ratings | 8 | 492 — better |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 12 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Building Start | WorkingBuildings, LLC |
Customer experience
Building Start
CxAlloy
Bugs and requests
Building Start
Not enough reviews yet to summarise bugs or requests.
CxAlloy
Reported bugs
24 issues- Equipment slider freezes after update
- App crashes when uploading photos
- App crashes when answering checklist questions
- App crashes when syncing
- Too many syncing issues
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- App crashes constantly
- Batch answering no longer works properly
- App keeps closing out in the middle of filling out multiple checklists
- Sync is horrible
- Basic functionality of tying assets together is non existent
- Multiple jobs not loading on phone
- App crashes constantly when updating checklist and changing checklist/issue status
- Crashes too often when using search function
- App crashes on iPad
- App continues to crash when writing field observation report
- Difficult to add issues and take photos without crashing
- Every update seems to add more issues
- New update will not open app on iPad
- App crashes immediately after opening on new update
- App won't open on iPad
- Newest update continues to crash on iPhone
- App won't even open on iPhone
- App syncing broken on iPad and iPhone after new update
- App closes/crashes every time when trying to edit a checklist
Requested features
1 request- Reenable batch passing and comments
In-app purchases
Building Start
No in-app purchases
CxAlloy
No in-app purchases
