Comparison

Douglas 3D Sizing vs OG Scan

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

Head to head

Custom Footwear, Custom AFO

Free

🏥 Medical

★ 5.01 ratingsView app →

About

Douglas 3D Sizing

Features

Read full description

This app uses the Structure SDK / TrueDepth camera for 3D scanning. Supported device list (updated regularly): https://techmed3d.zohodesk.com/portal/en/kb/articles/minimun-device-requirements The Douglas 3D sizing app assist in accurate measurements of the athlete's body to assist in the development of custom made products.

About

OG Scan

This free medical app allows practitioners to scan patients' feet using their iPhone or iPad. It enables ordering custom shoes, 3D-printed insoles, and Ankle-Foot Orthoses (AFOs) directly from the developer.

Highlights

3D foot scanning
Custom shoe ordering
Custom insole creation
AFO ordering
Uses TrueDepth camera
No additional hardware needed

Features

Read full description

This FREE app is designed specifically for practitioners to scan patients' feet and order custom-made shoes, advanced 3D-printed insoles, and custom Ankle-Foot Orthoses (AFOs) from OrthoGenix in Australia. OrthoGenix is a leader in Orthotics and Prosthetics (O&P), pedorthics, orthopedic, and podiatric solutions. Our team of certified pedorthists, O&P specialists, podiatrists, and CAD designers brings unparalleled knowledge and dedication to every product we create. With the OG Scan app, no longer requires the Structure Sensor camera. This is achieved using the built-in Apple TrueDepth front facing camera. * The app is free! No monthly fee * No need to buy additional hardware Interested in our custom foot orthotics products or custom Ankle-Foot Orthoses (AFOs)? Visit us at https://www.orthogenix.com.au/.

Screenshots

Douglas 3D Sizing1 screens

OG Scan4 screens

Verdict

The call

The clearest difference is update cadence: Douglas 3D Sizing at every 2 months against OG Scan's every 11 months. Douglas 3D Sizing also leads on iOS requirement (15.0 vs 17.6). On price, ads, 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

Douglas 3D Sizing ships an update every 2 months, OG Scan every 11 months. The most recent releases landed on September 15, 2026 and September 16, 2026 respectively.

Scorecard2 real differences · 7 level

Douglas 3D Sizing versus OG Scan: the parameters behind the verdict, then further details
Parameter	Douglas 3D Sizing	OG Scan
Price	Free	Free
Rating	—	5.0 (1 ratings) — better
Number of ratings	—	1 — better
Update frequency	Every 2 months — better	Every 11 months
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.0 — better	17.6
Further details — not scored
Size	126 MB	106 MB
Age rating	17+	17+
Developer	TechMed 3D	Xyken, LLC

In-app purchases

None

Douglas 3D Sizing

No in-app purchases

None

OG Scan

No in-app purchases

Questions

Is Douglas 3D Sizing free?

Douglas 3D Sizing is free to download, with no in-app purchases.

Is OG Scan free?

OG Scan is free to download, with no in-app purchases.

Do Douglas 3D Sizing or OG Scan have ads?

Neither Douglas 3D Sizing nor OG Scan shows ads.

Which is updated more often, Douglas 3D Sizing or OG Scan?

Douglas 3D Sizing ships an update every 2 months, and OG Scan every 11 months. Most recently, Douglas 3D Sizing was updated on September 15, 2026 and OG Scan on September 16, 2026.