One Onsite vs CheckSammy Professional
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Onsite
This app assists maintenance technicians in completing work orders efficiently. It provides essential job details, location guidance, and historical service information, requiring minimal training for users.
- Guided work order completion
- Informational job details and history
- Location guidance
- Offline and low connectivity performance
- Faster upload times
- 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
CheckSammy Professional
Connect with clients seeking your professional services. This platform provides a network for skilled individuals to find and accept job opportunities that align with their expertise, enabling them to monetize their talents.
- Access a network of service providers
- Find jobs matching your skills
- Turn expertise into earnings
- Receive a steady stream of opportunities
- Connect with clients
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Turn your expertise into earnings with CheckSammy. Join our network of trusted service providers and access a steady stream of jobs that match your skills.
Screenshots
Verdict
The clearest difference is update cadence: CheckSammy Professional at every 5 days against One Onsite's every 6 weeks. One Onsite's advantage is review sentiment (23% vs 13%) and ratings volume (99 vs 17). On price, rating, 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.
On the App Store both sit at effectively the same score — 2.5 for One Onsite against 2.5 for CheckSammy Professional. That said, the two scores are not equally well evidenced: One Onsite has 99 ratings behind it against 17, so its average is the more settled of the two. Written reviews are what separate them: 23% of One Onsite's written reviews are positive against 13% of CheckSammy Professional's.
One Onsite ships an update every 6 weeks, CheckSammy Professional every 5 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.
| Parameter | One Onsite | CheckSammy Professional |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (99 ratings) — better | 2.5 (17 ratings) |
| Positive reviews | 23.1% of reviews — better | 12.5% of reviews |
| Number of ratings | 99 — better | 17 |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 102 MB | 138 MB |
| Age rating | 4+ | 4+ |
| Developer | SMS Assist, LLC. | CheckSammy Technologies Inc. |
Customer experience
One Onsite
CheckSammy Professional
In-app purchases
One Onsite
No in-app purchases
CheckSammy Professional
No in-app purchases
Questions
Is One Onsite free?
Is CheckSammy Professional free?
Which has better reviews, One Onsite or CheckSammy Professional?
Do One Onsite or CheckSammy Professional have ads?
Which is updated more often, One Onsite or CheckSammy Professional?
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