Building Start vs LS Professional
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.
LS Professional
Conduct inspections of critical life safety elements in healthcare facilities with an intuitive interface. Visualize inspection areas using floor plans and synchronize results to a cloud platform for monitoring and management.
- Intuitive inspection interface
- Floor plan layouts for visual guidance
- Synchronization to cloud platform
- Cloud-based monitoring and management
- Tracking of follow-up actions
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LS (Life Safety) Professional from Advanced Technologies Group offers clients an easy-to-use interface to conduct inspections on their healthcare facility’s critical life safety elements. The inclusion of floor plan layouts in LS Professional provides intuitive visual guidance for quick, accurate inspections. Results are then synchronized to ATG’s Facility Information Platform, providing clients with cloud-based monitoring and management of inspections and necessary follow-up actions.
Screenshots
Verdict
The clearest difference is rating: LS Professional at 5.0 against Building Start's 3.4. On price, ratings volume, update cadence and ads 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.
LS Professional holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 8 and 3 respectively.
Building Start ships an update monthly, LS Professional every 6 weeks. The most recent releases landed on August 16, 2026 and September 10, 2026 respectively.
| Parameter | Building Start | LS Professional |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (8 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 8 — better | 3 |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 12 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Building Start | Advanced Technologies Group |
Customer experience
Building Start
LS Professional
In-app purchases
Building Start
No in-app purchases
LS Professional
No in-app purchases
Questions
Is Building Start free?
Is LS Professional free?
Which has better reviews, Building Start or LS Professional?
Do Building Start or LS Professional have ads?
Which is updated more often, Building Start or LS Professional?
Other comparisons
