One Onsite
SMS Assist, LLC. Utilities iPhoneiPadiPod touch
One Onsite is a free Utilities app for iPhone and iPad by SMS Assist, LLC. Rated 2.6/5 from 98 ratings. Requires iOS 15.0. Updated September 22, 2026.
- Rating
- 2.6
- 98 ratings
- Price
- Free
- on the App Store
- Size
- 117 MB
- Age 4+
- Updated
- Sep 22
- 2026 · v4.4.9
Screenshots
About One Onsite
One Onsite by Lessen helps vendors and their technicians complete their facilities maintenance work orders successfully while collecting valuable information along the way. With One Onsite, technicians can see the work they need to do for the day, read through relevant information around the issue, location and historical work done while effectively executing their work on-site with minimal disruption. Some of the key features around this app include: · Guided – With its seamless flow, simple language and focus on one task at a time, One Onsite is simple for the technicians to understand, and they require minimal training to use the app · Informational – One Onsite provides information and photos around the work order, guides the technician to the location that they need to visit and provides relevant historical service information. It also helps the technicians understand what information needs to be provided to their back office based on the trade · Efficient – One Onsite boasts of a vastly improved tech stack from its predecessor with better performance in offline and low connectivity areas, faster upload times and greater battery optimization
Ratings & reviews
2.6
98 ratings
What’s new
Version 4.4.9 · Updated September 22, 2026
• Improved work order check-in and ProCare workflows. • View customer WO details, special instructions, and attachments. • More flexible photo label selection during capture. • Added “Needs Assistance” for faster support escalation. • Improved scheduling, service history, notifications, and media uploads. • Fixed several issues with navigation, messaging, photo capture, and work order execution.
App privacy
The developer, SMS Assist, LLC., reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Analytics
Alternatives to One Onsite
Looking for apps like One Onsite? Here are 6 similar apps on the App Store. The highest rated is Bluon HVAC (4.8/5), and all 6 are free to download.
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CORE Service
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ServiceTitan Field
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HQx Live
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Azure ECM
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Bluon HVAC
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| One Onsite | 2.6 / 5 (98 ratings) | Free | September 22, 2026 | |
| CORE Service | 3.6 / 5 (19) | Free | Oct 5, 2026 | Compare |
| Affiliate Connect | 3.4 / 5 (18) | Free | Sep 2, 2026 | Compare |
| ServiceTitan Field | 3.5 / 5 (5,435) | Free | Oct 27, 2026 | Compare |
| HQx Live | 2.9 / 5 (39) | Free | Jun 18, 2026 | Compare |
| Azure ECM | 3.5 / 5 (8) | Free | Oct 6, 2025 | Compare |
| Bluon HVAC | 4.8 / 5 (4,452) | Free | Oct 9, 2026 | Compare |
Compare One Onsite with the top alternatives: ratings, updates, ASO score and keyword gaps →