Comparison

sqft AR vs OpCheck

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

OpCheck

Features
Read full description

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

sqft AR4 screens
OpCheck4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

sqft AR ships an update every 9 months, OpCheck daily. The most recent releases landed on September 27, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
sqft AR versus OpCheck: the parameters behind the verdict, then further details
Parametersqft AROpCheck
PriceFreeFree
Rating4.4 (761 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings761 — better—
Update frequencyEvery 9 monthsDaily — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size7 MB23 MB
Age rating4+17+
DeveloperNoriaki MuraoSafeguard 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

None

sqft AR

No in-app purchases

None

OpCheck

No in-app purchases

Questions

Is sqft AR free?
sqft AR is free to download, with no in-app purchases.
Is OpCheck free?
OpCheck is free to download, with no in-app purchases.
Do sqft AR or OpCheck have ads?
sqft AR shows ads; OpCheck does not.
Which is updated more often, sqft AR or OpCheck?
sqft AR ships an update every 9 months, and OpCheck daily. Most recently, sqft AR was updated on September 27, 2026 and OpCheck on September 18, 2026.

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