Building Start vs Xylem Optimyze
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.
Xylem Optimyze
Monitor the condition of pumps, motors, and rotating equipment using wireless sensors. The app analyzes vibration and temperature data to provide insights into equipment health.
- Asset condition monitoring
- Vibration data analysis
- Temperature data analysis
- Wireless sensor integration
- Equipment health insights
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optimyze™ from Xylem is an asset condition monitoring solution that determines the health of pumps, motors and other rotating equipment. Vibration and Temperature data is measured using a wireless sensor (sold separately). This data is then analyzed and displayed in the optimyze™ application.
Screenshots
Verdict
The clearest difference is rating: Xylem Optimyze at 5.0 against Building Start's 3.4. Xylem Optimyze also leads on iOS requirement (13.0 vs 15.0). Building Start's advantage is update cadence (monthly vs every 2 months). On price, ratings volume, ads and in-app purchases 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.
Xylem Optimyze 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, Xylem Optimyze every 2 months. The most recent releases landed on August 16, 2026 and August 15, 2026 respectively.
| Parameter | Building Start | Xylem Optimyze |
|---|---|---|
| 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 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 265 MB |
| Age rating | 4+ | 4+ |
| Developer | Building Start | Xylem Inc. |
Customer experience
Building Start
Xylem Optimyze
In-app purchases
Building Start
No in-app purchases
Xylem Optimyze
No in-app purchases
