sqft AR vs OpCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
sqft AR
Measure floor and wall areas, lengths, and check product sizes in real-world spaces using augmented reality. Visualize virtual furniture to gauge room dimensions and ensure product fit.
- Measure floor area (ft², m²)
- Measure wall area (ft², m²)
- Measure length between points
- Visualize virtual furniture
- Check product size fit
- Save measurements and photos
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The app has five core features. 1. Area - Floor: To measure the horizontal area on a floor in ft² or m² 2. Area - Wall: To measure the vertical area on a wall in ft² or m² 3. Length: To measure the length between two points 4. Furniture: To measure the relative size of the space by placing standard-sized virtual furniture 5. Size Checker: To check the relative size of a product in the real world by comparing it to other objects. To check whether the product's size fits the space. HOW TO USE 1. Area - Floor or Wall - Choose a unit between ft² or m² - Tap "Area - Floor" or "Area - Wall" on the main menu - Move the camera to scan the surrounding area - Find a flat surface on the floor or on the wall until the blue square appears - Place the pointer ("+" on the center of the screen) to one of the corners of the floor or the wall - Tap the screen to mark with a red sphere - Move slowly clockwise ( or counterclockwise) to the next corner and repeat the action until all corners are marked by a red sphere ( Do not mark twice on the starting point) - Tap the "Calc" button to calculate the area - To save data, tap the "Save" button, type remarks, and tap "Save." - To take a photo, tap the "Camera" button - To find saved data of Area, tap "File" mark on the top right corner of the main menu - To see the location and photo (if it was taken) of saved data, tap the row on the list of saved data - To delete saved data, tap "File" mark on the main menu and slide your finger from right to left on the row in the list of saved data - In some cases, the AR shaded orange area may be displayed outside of the outlines or overlapped; this does not affect the calculation of the area 2. Length - Tap "Length" on the main menu - Move the camera to scan the surrounding area - Wait until a lot of yellow dots display on the surface of the target object. - Place the pointer ( "+" on the center of the screen) to the starting point of measuring object - Tap the screen to mark with a red sphere - Move slowly to the other end of the measuring object and place the pointer - Tap the screen to display the length - To measure another object, tap the "Reset" button and repeat the same procedure - To take a photo, tap the "Camera" button 3. Furniture - The virtual furniture is standard or typical size to help measure the relative size of the space - Tap "Furniture" on the main menu - Move the camera to scan the surrounding area - Find a flat surface on the floor until the blue square appears - Choose one of the furniture items on the list of furniture and tap it - Tap the screen to place the furniture - To rotate the furniture, touch the screen on the furniture and slide your finger - To move the furniture, long-press the screen on the furniture and slide your finger - To place more furniture, tap the "Add Another Item" button and repeat the procedure - To hide the size of furniture, tap the "Info" button - To display the size of furniture, tap the "Info" button again - To take a photo, tap the "Camera" button 4. Size Checker - This feature is to check the relative size of the product in the real world by comparing it to other objects - To check whether the size of the product fits the space or not - Select measure unit - Type Width, Depth, and Height into each field - Select the surface to place the AR box and tap GO - Move the camera to scan the surrounding area - Find a flat surface to place the AR box until the blue square appears - Tap the screen where you want to place the AR box.
OpCheck
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Safeguard Analytics OpCheck™ combines continuous supervision of the gas sensor element and associated circuits then adds analysis of performance data during routine calibration to create a high level of safety and reliability in every Safeguard Analytics gas detection sensor. Using the Bluetooth connection and an iPhone or iPad, OpCheck™ service reports are readily available in single device or site wide formats. The reports can be uploaded via text or email.
Screenshots
Verdict
The clearest difference is ads: OpCheck at none against sqft AR's shown. OpCheck also leads on update cadence (daily vs every 9 months). sqft AR's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
sqft AR ships an update every 9 months, OpCheck daily. The most recent releases landed on September 27, 2026 and September 18, 2026 respectively.
| Parameter | sqft AR | OpCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (761 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 761 — better | — |
| Update frequency | Every 9 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 7 MB | 23 MB |
| Age rating | 4+ | 17+ |
| Developer | Noriaki Murao | Safeguard Analytics |
Bugs and requests
sqft AR
Reported bugs
5 issues- App freezes and becomes unresponsive
- Measurement tool changes sizes unexpectedly
- Marking points appear 2-3 feet above intended location
- Automatic mode switching between wall and floor measurements
- Inconsistent accuracy in sunlight and with clear objects
Requested features
4 requests- Undo/clear marking functionality
- Better instructions and tutorials
- Improved performance in various lighting conditions
- Regular app updates and maintenance
OpCheck
Not enough reviews yet to summarise bugs or requests.
In-app purchases
sqft AR
No in-app purchases
OpCheck
No in-app purchases









