A tradesman app for jobs, quotes and invoices
Call it a tradesman app, an app for tradesmen, tradesmen apps, tradesman apps, a job management app for tradesmen or a field service app — Opsler runs your customers, jobs, quotes and invoices from an installable browser-installed app. It is not a native App Store or Google Play listing, and it does not work fully offline — both are worth knowing up front.
Browser-installed, not a native app store listing.
Opsler installs from a supported browser and runs like an app from there, but it will not appear in an App Store or Google Play search. Offline use is scoped to creating estimates and invoices only — not the whole app.
What an installable browser-installed app means
Open Opsler in a supported browser on your phone, tablet or laptop and you can install it directly from there — no app-store search, no download page. Once installed it launches from its own icon and runs full-screen like any other app. The trade-off is that updates roll out the moment you reload, and there is no separate app-store listing to browse or review.
Who the app fits—and who needs a specialist system
A sole trader or small trade team running enquiries, quotes, a diary and invoices from a phone and a laptop is squarely who this is built for. It is not a lead-generation marketplace, an employee GPS-tracking tool, or a construction project-management platform — those are different categories with different software.
Capture enquiries and customer details
A new enquiry becomes a customer record with a service address and job history attached, so the next call from that customer isn’t a blank page. However the enquiry arrives, it goes through the same request workflow before landing as a job on the schedule.
Create and manage quotes
Build a quote from your own price book — a single price or three tiers — and the customer approves it with a one-time code emailed to them plus a typed or drawn signature, on one page in their own browser. That approval step always happens online; there is no offline or technician-device signature path.
View the diary and assigned jobs
A drag-and-drop board shows every job assigned to you or your team for the day or week ahead, so a tradesman working alone can see the whole week at a glance from the same app used to quote and invoice.
Use a digital job card in the field
The job card carries the address, notes and customer history to wherever you open the app, and photos, time and materials log against that same record as the work happens.
Create estimates and invoices with the verified offline scope
If you lose signal on site, you can still create or edit an estimate and create an invoice — both queue on the device and sync automatically once you’re back online. That is the exact verified offline scope; general job updates, photos and schedule changes are not part of it, so don’t plan around them working without signal.
Keep office and field records visible to the right people
Whether you’re working solo or with a small team, the same job record is visible from the office view and the field view — nobody is reading a different version of what happened on the job.
Native apps, GPS, SMS and accounting boundaries
To be direct about what this is not: there is no native App Store/Google Play listing, no live GPS tracking, and no SMS on any plan today — SMS is a planned bring-your-own integration. Accounting is a formatted CSV export for manual import, not a live Xero or QuickBooks sync, and pricing stays in US dollars regardless of where your business is based. Two things worth stating precisely rather than lumping in with the above: on the Pro plan a GPS snapshot is recorded when an engineer marks en route, arrived or completed — a milestone record, not a live map of where vans are — and route optimisation re-sequences one engineer’s flexible jobs within a single day, run manually, with fixed appointment times left anchored.
Tradesman app evaluation checklist
Four things Opsler does, and four it deliberately doesn’t. Take the same eight questions to any tradesman app you’re evaluating.
| Capability | Opsler | Detail |
|---|---|---|
| Installable from a supported browser, no app store | Yes | Add-to-home-screen / desktop install, works like an app icon |
| Enquiries, quotes, diary and job details in one place | Yes | Enquiry becomes a customer record with full history |
| A digital job card in the field | Yes | Address, notes and history travel with the job |
| Estimates and invoices created offline, synced later | Yes | The verified offline scope — not the whole app |
| A native iPhone or Android app store listing | No | Browser-installed, not App Store/Google Play |
| Full offline job management, photos and schedules | No | Only estimates and invoices work offline |
| Live GPS tracking or automatic multi-engineer routing | No | Pro adds milestone GPS snapshots and single-engineer route optimisation, both manual |
| SMS notifications | No | Planned bring-your-own integration, not live |
Free Budding plan: 2 seats, 50 jobs a month, 100 inventory items, 1 inventory location. Pro is $25 per seat per month with no seat minimum and a 14-day trial that doesn’t ask for a card.
Tradesman app questions
It depends whether you want a native phone app from an app store or a browser-installed one that runs on any device without a download. Opsler is the second kind: install it straight from a supported browser on your phone, tablet or laptop, and it behaves like an app icon from there. If enquiries, quotes, a diary, job cards and invoices are your bottleneck, that is exactly what it is built for — worth testing on a real job before deciding it fits.
In Opsler specifically: creating and editing estimates, and creating invoices, both work with no signal and sync automatically once you reconnect. That is the verified offline scope — full job management, photos, schedules and messaging are not part of it, and it is worth testing directly rather than assuming a wider offline mode exists just because the app installs like a native one.
No. Opsler is a browser-installed app — install it from Safari, Chrome or another supported browser and it runs full-screen from a home-screen or desktop icon, but it is not listed in the App Store or Google Play. That distinction matters for update behaviour and installation steps, so it's worth knowing before you assume App Store search will find it.
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