Omar works as a handyman. One day he fixes a sticking door and rehangs a cabinet; the next he assembles shelves and patches drywall in a basement where the signal drops. Between jobs he sits in the van with his phone, booking the next visit and hunting for a measurement he knows he wrote down somewhere.

Not long ago that phone held more productivity apps for Android than he could name, and he still couldn’t find the measurement. Here is how he cut the set down to a few that match his day, and what any owner with a crowded home screen can take from it.

The problem: information everywhere and nowhere

Omar’s work leaves a trail of small facts. Measurements and paint colors. Model numbers. Photos of damage before and after a repair. Receipts for hinges and drywall screws. Questions from customers about arrival times. And the extra jobs people mention as he packs up, like a loose railing or a dripping outdoor tap.

Each of those had ended up in a different place. Measurements were split between two notes apps. Receipts sat in the camera roll and in a scanning app he had opened twice. The extra jobs went into a task app he forgot to check. On top of that, every app sent its own notifications, and they tended to arrive while he was up a ladder.

Omar’s first try: more productivity apps for Android

His first answer was to install more. Whenever something got lost, he went to Google Play and found an app for it: a second notes app because it had nicer folders, a dedicated scanner although his phone’s camera could already scan documents, and a task list with more features than he ever opened.

It made things worse. Within a few weeks he had measurements in both notes apps and could find neither. Two task lists meant one of them went stale. The new apps each wanted his attention, so the phone interrupted him more during jobs. Finding apps had been easy. Picking a small set that matched the way he works, and then using it consistently, was the part he had skipped.

Omar’s change: a short list and one app per job

He started with a week of his own work. Before installing or moving anything, he listed what he did on his phone over a few working days: booking jobs, writing down measurements, photographing damage, keeping receipts, answering customers about arrival times and noting extra jobs. Grouped together, that list called for five kinds of apps and only one of each.

He went back to one notes app, the one that syncs with his computer and opens without a signal. He kept the phone’s own calendar and one task list, and he now adds a task the moment it comes up, before the next job pushes it out of his head. For receipts he uses the scanner built into the camera.

The fifth kind was new to him: an assistant for the writing that kept piling up in the evenings. He added Empacer, an AI business assistant for owners of small and medium businesses. On his phone it is the Empacer for Business app from Google Play, and on the computer at home it opens in the browser at app.empacer.com. One account covers both, so tasks, files and settings carry across.

In the van, Omar taps the voice button and says what he needs, or types it into the Ask anything field, and a photo or file can go along with the paperclip. The requests are everyday ones: a reply to a customer about an arrival time in his own tone, a short plan for the days ahead, a post from a photo of a finished job, or a clean document from a supplier’s price list, which sits close to his scanning habit. The page on what the Empacer app does walks through the request and review steps.

Each result shows up as a card. Omar can adjust a line, tell Empacer what to change, decline the draft or approve it, and nothing is sent until he approves, which is the default. During setup he answered a few short questions in About you in place of a long form. His answers sit there as short facts he can update, and when Empacer had to guess, as with his tone of voice, the fact is flagged as a guess. He keeps his list of services there current and adds one specific detail to each request, such as the job, the day or the customer’s question. When a task involves his Google Calendar, Empacer asks to connect it at that point, and a separate screen lists the access requested before he agrees. Connected tools appear in Connections.

Last, he rearranged the home screen around the workday. His dock now holds the phone app, the camera, the calendar and the assistant app. Everything else is one swipe away in a folder called “Work.”

What you can take from this

List your work before you list apps. A few days of what you actually do on your phone shows which kinds of apps you need, and it keeps you from collecting tools for problems you don’t have.

Five kinds cover most of a service business’s day.

• Notes catch measurements, paint colors and model numbers. Look for one that syncs across devices, lets you add photos to a note, searches quickly and opens without a connection. Checklists inside a note work well for material lists.
• Calendar holds the shape of the week. Color coding by job type or part of town makes a busy day easier to read, and a widget shows the next appointment without opening anything.
• Scanning turns a photo of a receipt, an invoice or a signed form into a clean document, usually a PDF. Many phones already have a scanner in the camera or the files app.
• Tasks hold things that have to happen but have no fixed time: order a hinge, call back about the fence, send photos to the property manager. Due dates and plain lists are enough for most one-person businesses.
• Assistant apps prepare pieces of work from a request, such as a reply, a short plan or a tidy document. They work alongside the other four and draw on what you tell them. They suit days full of short written replies, posts and small documents.

Keep one app per kind. Two notes apps means two places to search. Look for overlap, since a notes app with checklists may cover your tasks. Check that an app shows the same data on your computer before you commit.

Arrange the screen for dusty hands. Put the four apps you open most in the dock, add a calendar or task widget to the first screen, and keep other work apps in one folder. Turn off notifications for apps that don’t need you during a job. Most Android phones let you do this per app, and many have a Do Not Disturb mode with exceptions for chosen contacts.

Keep work and personal apps apart. A folder for work apps on the first screen is the simple route. Some phones also offer a separate work profile or a second space for apps, though the name and location of that setting vary by phone maker.

Review the set every few months. Work shifts with the seasons, with more gutter and deck jobs at one time of year and more indoor repairs at another. Scroll through your work folder and check that each app still matches the work of the season.

A short checklist

• Write down what you did on your phone over the last few working days.
• Sort the list into notes, calendar, scanning, tasks and assistant work.
• Where you have two apps for one kind, choose one.
• Check that your notes open without a signal.
• Put your four most-used apps in the dock and the rest in a “Work” folder.
• Turn off notifications for apps that don’t need you during a job.