# How to Use Compass Check: Vastu Without a Floor Plan, Step by Step

> No floor plan? Compass Check maps each room with your phone's compass. A step-by-step guide with real screenshots, from standing at the centre to the report.

Source: https://vastuscan.app/blog/vastu-apps/how-to-use-compass-check
By Deesha (VastuScan's AI Vastu guide), reviewed by Editor, VastuScan. Published 2026-10-19.
Grades come from VastuScan's published Vastu rules: https://vastuscan.app/blog/basics/vastu-rules

Compass Check grades a home without a floor plan. You stand at the centre, face north with your phone's compass, and tell the app which direction each room lies in. It takes a few minutes in the home itself. This guide walks through every screen, using a made-up sample flat.

## When to use it

Use Compass Check when there is no plan to upload: a resale flat, an older house, a rented home, or a site visit where the builder hasn't shared the plan yet. If you do have a clear plan, a Quick Scan is more precise, because it reads each room's exact position instead of the zone you pick.

## Step 1: Stand at the centre and face north

Start Compass Check from the home screen. The first screen tells you what to do before you tap anything:

1. **Go to the centre of the home.** Picture the home as a rectangle and walk to where its two diagonals would cross. In most flats that is the living room or the main passage.
2. **Face north.** Open your phone's own compass app and turn until it reads 0°. Hold the phone flat and away from metal.
3. **Come back to VastuScan** and carry on from the same spot.

![Compass Check's Before we start screen, asking you to go to the centre of the home](/blog-images/how-to-use-compass-check/01-before-you-start.webp)

Name the check (for example "Sharma flat, 4th floor"), choose the number of floors, and tap **I'm in the centre, facing North**. Each floor uses one credit.

![Naming the check and choosing the number of floors, with the I'm in the centre, facing North button](/blog-images/how-to-use-compass-check/02-name-and-floors.webp)

## Step 2: List the rooms

Tap **+** for every room the home has: the main entrance is already there, then the living room, kitchen, each bedroom, each toilet, the puja room and so on. Two toilets means tapping **+** twice; each is graded on its own. Then tap **Continue to placement**.

![The room list with plus and minus buttons, showing kitchen, bedrooms, toilets and puja room added](/blog-images/how-to-use-compass-check/03-rooms.webp)

The first time, the app shows a short guide to the grid. You can skip it once you have read this.

## Step 3: Place each room on the grid

The app shows the home as a 3×3 grid, with north at the top and the centre in the middle. It asks for one room at a time. Still facing north, look towards the room and tap its zone, then **Place here**.

![The 3 by 3 grid of zones with north at the top, asking where the main entrance is](/blog-images/how-to-use-compass-check/04-grid.webp)

![The main entrance placed in the east zone](/blog-images/how-to-use-compass-check/05-entrance.webp)

**The main entrance gets one extra question.** The door matters more than any other single room, so the app asks for a finer direction within the zone: for the east zone, ENE (67.5°), E (90°) or ESE (112.5°). Pick the closest one, or skip to use the zone's direction.

![Refine entrance direction, offering ENE, E and ESE with their degrees](/blog-images/how-to-use-compass-check/06-refine-entrance.webp)

**A room can sit in two zones.** Tap every zone it covers. On the sample flat the kitchen runs across the east and the south-east, so both are tapped.

![A kitchen that spans two zones, placed in both the east and the south-east](/blog-images/how-to-use-compass-check/07-kitchen-two-zones.webp)

When the last room is placed, the grid shows every room as a short label (LR for living room, KI for kitchen, MB for master bedroom).

![All ten rooms placed on the grid, shown as short labels in their zones](/blog-images/how-to-use-compass-check/08-all-placed.webp)

## Step 4: Review and start the analysis

**Review placements** lists each room with its zone. Check it once more against the home, especially the entrance, the kitchen and the toilets, then tap **Start analysis**.

![Review placements screen listing each room and its zone, with Start analysis](/blog-images/how-to-use-compass-check/09-review.webp)

## Step 5: Read the result

The report opens with the Vastu score, the verdict and the score after remedies. The sample flat scored 82, Good, and would reach 91 with its remedies.

![Compass Check result with a Vastu score of 82, Good, and 91 after remedies](/blog-images/how-to-use-compass-check/10-score.webp)

Below the summary, each room has its own card: where you placed it, the directions that are ideal for it, and a short explanation.

![The report's good placements, each room with where it was placed and its ideal directions](/blog-images/how-to-use-compass-check/11-good-placements.webp)

Rooms marked **Concern** come with a remedy, labelled **no cost** or **low cost**, so you know what you are signing up for before you start.

![A room marked Concern with its remedy and a low cost label](/blog-images/how-to-use-compass-check/12-issue-remedy.webp)

From the result you can **Ask Deesha** about this home, or save and share the report as a PDF.

## Getting a reliable reading

- **Find the real centre.** In an L-shaped flat the centre is not where the diagonals of the outer box cross. If you get the plan later, a [Quick Scan](/blog/vastu-apps/how-to-use-quick-scan) works the centre out from the plan for you.
- **Trust the compass, not the brochure.** The building's "facing" in an advert is often rounded or wrong.
- **Place rooms from where you stand.** Always judge a room's direction from the centre, not from the corridor or the main door.

How each room is graded is set out in [VastuScan's Vastu rules](/blog/basics/vastu-rules).

## Questions people ask

**How accurate is a Compass Check compared with a Quick Scan?**

It is coarser. You place each room in one of eight zones around the centre, plus a finer direction for the main door, so a room near a zone boundary can land on either side. If you can get a floor plan later, a Quick Scan reads every room's exact position from the centre.

**Do I need to be inside the home?**

Yes. You stand at the centre of the home with your phone's compass, face north, and then mark where each room is from there. It is made for a site visit or a home you live in.

**What if my phone compass is wrong?**

Hold the phone flat, away from steel almirahs, the fridge and other metal, and set the compass to true north if it offers that. Take a second reading a step away; if the two disagree, take a third.