Guides

What Is Power BI Desktop vs Service vs Mobile?

By Ravindra Bagale, Power BI & Data Analytics trainer · LinkedIn · Published: 30 September 2026 · Last updated: 30 September 2026

Power BI Desktop is the Windows app where you build your file. The Power BI Service is the cloud website where you publish, share and refresh. Power BI Mobile is the phone app for viewing. Same report. Three different jobs.

Desktop  →  author (Query + Model + Pages)
Service  →  share / refresh / dashboards / apps
Mobile   →  view / interact / alerts

What do I need before this guide?

• A Windows PC (or a Windows virtual machine) if you want to try Desktop later.
• Optional: a free Microsoft account so you can peek at app.powerbi.com.
• Course overview: Components of Power BI.

Before and after (look at the tables first)

Desktop builds the model. After publish, the Service (and Mobile) can filter the same rows — here City = Mumbai leaves 150.

Why three apps exist (and why you should care)

Microsoft did not invent three logos to confuse you. Each app matches how companies work.

1. Analysts need a strong building tool with Power Query and DAX → that is Desktop.
2. Managers and teammates need a browser link, permissions and overnight refresh → that is the Service.
3. People on the move need a phone layout and alerts → that is Mobile.

Why you care as a beginner:

1. If you only learn Desktop, you can practise alone — but you will not know how a company delivers Power BI.
2. If you only click around the Service, you never learn modelling.
3. Interviews often ask: “Where do you build, and where do you share?”

Tiny story with numbers:

1. FreshBasket (fictional) has two cities today: Pune sales 100, Nashik sales 40.
2. Priya builds the report in Desktop. Only she has the .pbix file.
3. She Publishes to the Service. Rohan opens the same numbers in a browser.
4. Rohan checks Mobile in the store aisle. He still sees 100 and 40 after refresh.

What is Power BI Desktop?

Power BI Desktop is the free Windows application where most serious building happens. Think of it as your workshop on your laptop.

What it is (in plain words)

1. An app you install on Windows.
2. A place to connect Excel, CSV, databases and more.
3. A place to clean data, build relationships, write measures and design chart pages.
4. A place that saves everything as one project file: .pbix.

Why you care

1. Almost every real skill (Power Query, DAX, model view) lives here first.
2. Your homework and practice files are .pbix files.
3. Without Desktop, you mostly watch reports. With Desktop, you make them.

What you do there (vertical steps)

1. Get data from Excel, CSV, databases, web and many other connectors.
2. Transform with Power Query (the Transform data window).
3. Model relationships, hierarchies and DAX measures (a measure is a formula that totals or calculates for the filters on screen).
4. Design report pages with charts, slicers, cards and bookmarks.
5. Save everything as a .pbix project file on disk.

What you see on screen

1. Left edge: Report / Data / Model icons.
2. Centre: the blank page (canvas) where charts sit.
3. Right: Visualizations and Fields panes.
4. Top: the ribbon with Home, Insert, Modeling and more.

What you do not do there

1. You do not permanently host a shared company URL for your whole team (that is the Service).
2. You do not schedule cloud refresh for colleagues while the file only lives on your laptop.

Tiny example:

1. You connect freshbasket_orders.xlsx.
2. You build three pages.
3. You save FreshBasket-Sales.pbix.
4. Until you Publish, only people with that file (or a copy) can see it.

What is the Power BI Service?

The Power BI Service is the cloud website at app.powerbi.com (and related Microsoft 365 entry points). Think of it as the delivery floor.

What it is (in plain words)

1. A website in the cloud, not an install on your PC.
2. The place your .pbix becomes a shareable report and dataset.
3. The place for permissions, refresh schedules, dashboards and apps.

Why you care

1. Companies do not email .pbix files every morning.
2. Managers want a browser link.
3. Overnight refresh keeps numbers current without you clicking Refresh by hand.

What you do there (vertical steps)

1. Publish Desktop files into a workspace (a folder-like area for a team).
2. Open reports in the browser without installing Desktop.
3. Manage permissions, apps and sharing links (within your licence rules).
4. Configure dataset refresh and gateways for on-premises sources (a gateway is software that lets the cloud reach a file or database inside your office network).
5. Create dashboards by pinning tiles from reports.
6. Set some subscriptions and data alerts (features vary by licence).

What you see on screen

1. After Publish, a workspace lists a report and a dataset.
2. Opening the report shows your pages in the browser.
3. Refresh settings live on the dataset, not inside the Desktop file alone.

Mental model

Desktop remains your workshop. The Service is where the work becomes living and shareable.

What is Power BI Mobile?

Power BI Mobile (iOS / Android) connects to the same Service content. Think of it as a pocket viewer.

What it is (in plain words)

1. A phone or tablet app from Microsoft.
2. It shows reports and dashboards your account can already open in the Service.
3. It is for reading and light clicking, not for building big models.

Why you care

1. Store managers and field staff live on phones.
2. Alerts can nudge someone when a number crosses a limit.
3. Interviews may ask if Mobile replaces Desktop — the answer is no.

What you do there (vertical steps)

1. Sign in with the same work account.
2. Open reports and dashboards your account can access.
3. Use slicers and basic navigation on a small screen.
4. Receive notifications / data alerts when configured.
5. Present a phone-optimised layout if the author set one up.

What you see on screen

1. A list of workspaces and reports.
2. Charts that adapt to a narrow screen.
3. Slicers you can tap (tiles help on touch screens).

What you should not expect

1. Full Power Query editing.
2. Comfortable modelling of large models on a phone.
3. Replacing Desktop for serious development work.

FreshBasket story (fictional, for learning)

FreshBasket is a fictional quick-commerce training dataset (similar spirit to the course’s sample style — not a real company claim).

1. Analyst Priya builds the model in Desktop at home. Pune = 100, Nashik = 40.
2. She Publishes to the “Training – Sales” workspace.
3. Overnight refresh pulls the latest CSV drop from a folder (gateway or cloud location — details later in the course).
4. Store manager Rohan opens the dashboard on Mobile while walking the aisle.
5. When a KPI crosses a threshold, an alert nudges him to open the report.

That is the whole Desktop → Service → Mobile loop in five lines.

How do I choose where to click today?

Vertical decision list:

1. Learning DAX / Power Query tonight → Desktop.
2. Sharing with a friend who has a licence → Publish to Service.
3. Checking yesterday’s sales in an auto → Mobile.
4. Building a manager one-pager of pins → Service dashboard.
5. Fixing a wrong relationship → back to Desktop Model view.

Common mix-ups (and fixes)

Ghabru naka 😅 — everyone confuses these once:

Licensing awareness (high level only)

Microsoft licensing changes; always verify on official docs. Beginner awareness only:

1. Desktop authoring is free to download for building.
2. Sharing and collaborating in the Service typically needs a capacity/licence story (Pro / Premium per user / Fabric capacities — names evolve).
3. Free Service accounts can explore with limits; workplace sharing usually means your org assigned you a licence.
4. Do not pirate “Pro cracks” — that is malware bait and a career landmine.

What “Publish” actually sends

When you Publish a .pbix:

1. A dataset (model + data, depending on storage mode) lands in the workspace.
2. A report (pages and visuals) lands beside it.
3. Later edits in Desktop require publishing again (or other ALM workflows in advanced setups).
4. Dashboards you pin live in the Service and point at report visuals.

Tiny number check after Publish:

1. Your Card still shows 140 (100 + 40) if nothing filtered.
2. Rohan in the Service sees the same 140.
3. After a refresh that adds one more Pune order of 10, both see 150.

Hands-on orientation without sharing yet

Even before you share with anyone:

1. Create a tiny report in Desktop.
2. Publish to My workspace.
3. Open it in the browser — feel the Service.
4. Install Mobile and open the same workspace.
5. You have now touched all three surfaces with one sample.

Interview answers (short)

1. “Desktop is where I model and design.”
2. “Service is where I publish, refresh and share.”
3. “Mobile is for viewing and alerts on the phone.”
4. “Dashboards are pinned tiles in the Service, not Desktop pages.”