ServiceTitan Mobile vs One Onsite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ServiceTitan Mobile
This app empowers plumbing, HVAC, and electrical contractors to enhance customer interactions and boost sales. It provides tools for dispatching, estimating, payment collection, and presenting options, streamlining technician workflows for improved business outcomes.
- Customer experience enhancement
- Sales performance improvement
- Technician workflow optimization
- Dispatching capabilities
- Estimate building
- Payment collection
- Multi-option presentation
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ServiceTitan Mobile 3.0 helps plumbing, HVAC, and electrical contractors deliver an exceptional customer experience while driving sales and business results. Built from the ground up, Mobile 3.0 incorporates best-in-class practices and a beautiful, user-centric design to power technician's day-to-day performance. With the ability to dispatch, build estimates, present multiple options, collect payment, and much, much more, Mobile 3.0 allows technicians to lead customers through an enhanced sales experience that will result in positive reviews and repeat business. ServiceTitan Mobile 3.0 app uses the Location Background mode. Continued use of GPS running in the background can dramatically decrease battery life.
One Onsite
This app assists facilities maintenance technicians in completing work orders efficiently. It provides detailed information, guides users to locations, and streamlines data collection for back-office reporting. The application is designed for ease of use with minimal training required.
- View daily work orders
- Access issue and location details
- Review historical service information
- Guided task completion flow
- Offline and low-connectivity performance
- Faster data upload
- Battery optimization
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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
Screenshots
Verdict
The clearest difference is rating: ServiceTitan Mobile at 2.9 against One Onsite's 2.6. ServiceTitan Mobile also leads on ratings volume (1.7K vs 98). One Onsite's advantage is iOS requirement (15.0 vs 17.0). On price, review sentiment, 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.
ServiceTitan Mobile holds the better App Store score, 2.9 against 2.6. That said, the two scores are not equally well evidenced: ServiceTitan Mobile has 1.7K ratings behind it against 98, so its average is the more settled of the two. Written reviews complicate that: 19% of ServiceTitan Mobile's written reviews are positive against 23% of One Onsite's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.
| Parameter | ServiceTitan Mobile | One Onsite |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (1.7K ratings) — better | 2.6 (98 ratings) |
| Positive reviews | 19.1% of reviews | 23.1% of reviews — better |
| Number of ratings | 1.7K — better | 98 |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 253 MB | 117 MB |
| Age rating | 4+ | 4+ |
| Developer | ServiceTitan Inc. | SMS Assist, LLC. |
Customer experience
ServiceTitan Mobile
One Onsite
Bugs and requests
ServiceTitan Mobile
Reported bugs
5 issues- App freezes and crashes frequently
- Syncing issues leading to data loss
- Zooming and navigation problems
- Inconsistent performance across devices
- Login and password reset issues
Requested features
6 requests- Add ability to upload more photos at once
- Improve equipment management features
- Integrate location notes and blueprints
- Optimize interface for smaller screens
- Add dark mode option
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- Improve stability and reduce crashes
One Onsite
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ServiceTitan Mobile
No in-app purchases
One Onsite
No in-app purchases
Questions
Is ServiceTitan Mobile free?
Is One Onsite free?
Which has better reviews, ServiceTitan Mobile or One Onsite?
Do ServiceTitan Mobile or One Onsite have ads?
Which is updated more often, ServiceTitan Mobile or One Onsite?
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