A web app, and why that is the honest description
Most searches for an estimate app are looking for something to install. This is not that: it is a page that happens to be a working application, which is a real difference and worth stating plainly rather than burying. You lose an app-store icon, push notifications and a native file picker. You gain the absence of an install, an update cycle, a signup form and a set of permissions — and the fact that the tool is running about two seconds after you tap the link, which matters when the client is standing next to you.
On iOS and Android you can add the page to your home screen and it opens full-screen from an icon like anything else. That is the closest thing to installing it, and it costs nothing.
Your numbers stay on your device
The math and the PDF are produced by your own browser. Nothing about the document — the client’s name, your rates, your markup — is uploaded in order to build it or to generate the file you download. That is why the whole thing fits in local storage: a finished sheet runs from roughly 1,200 to 2,300 characters of JSON across the worked examples on this site.
The honest cost of that design: there is no cloud account syncing your estimates between devices, and clearing your browser data clears your saved sheet. Download the PDF when you finish one, and treat the PDF as the copy of record. That is what you are sending the client anyway.
Writing an estimate on a phone, without regretting it
Phone estimates fail in predictable ways, and all of them come from the same instinct: keeping it short because typing is slow. Give the client a single lump sum and you have given away the ability to explain the price, defend it, or change part of it later. Four or five lines is enough — this page loads exactly that — as long as each one names something real: the call-out, the hours, the parts, the return visit.
The other phone-specific mistake is skipping the notes field because the keyboard is in the way. That field is where the scope boundary lives, and one sentence about what is not included is worth more on a driveway estimate than anywhere else, because a driveway estimate is the one written before anyone has opened anything up. If the job is bigger than a service call, how to write an estimate walks the full seven steps.
Where to start, depending on the work
This site keeps 26 preloaded documents, 14 of them per trade — the plumbing, HVAC and handyman sheets are the ones most often opened on a phone. For a general blank document use the estimate maker, and for construction work in takeoff units there is the browser-based construction estimating tool. The rates inside every preset are editable placeholders that give the math something to work on — they are not price guidance, and the first thing to do is replace them.
Free estimate app FAQ
Is there an app to download from the App Store or Google Play?
No, and you do not need one. This is a web app: open the page in your phone's browser and the estimator is already running. Nothing to install, nothing to update, no permissions to grant. Add the page to your home screen and it opens like any other app icon.
Is the free estimate app really free?
Yes. No account, no trial period, no card. Free PDFs carry one small credit line at the foot and the optional Pro upgrade removes it. There is no feature behind a paywall and nothing stops working after a fortnight.
Does it work offline, in a basement or a crawlspace?
Load the page while you still have signal and the estimator keeps working in that tab — the math and the PDF are produced by your own device, not by a server. What a dead signal will stop is loading the page fresh, so open it before you go under the house.
Where is my estimate saved?
In your own browser's local storage on that device. A finished sheet is roughly 2,300 characters of JSON at most, so it costs nothing to keep and a refresh or a closed tab will not lose it. The trade-off is real: a document saved on your phone is not on your desktop, because it was never uploaded anywhere.
Can I add my logo and get a proper PDF on a phone?
Yes. Add the logo once and it is remembered for the next job. The PDF is generated as vector text rather than a screenshot of the screen, so it stays sharp when the client prints it, and it downloads to your phone like any other file — ready to attach to a text or an email before you leave the driveway.
Can I use it for a quote or a change order too?
Yes. The document heading is an editable field, so the same app prints 5 types — estimate, quote, bid, change order and proposal. Handy when the client says yes on the spot and the job changes a week later.