Comparison

Ortho Calculator vs 3D

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

Head to head
About

Ortho Calculator

This app provides advanced mathematical tools for orthodontic treatment planning. It offers various calculators to assist dental professionals in making informed decisions, all accessible from a smartphone.

Highlights
  • Maxillary Space Calculator
  • Mandibular Space Calculator
  • Expansion Calculator
  • Extraction Calculator
  • Space Maintenance Calculator
  • Surgical Expansion Calculator
  • Treatment Plan Calculator
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Take the guesswork out of orthodontic treatment planning with Ortho Calculator Mobile! Harness the power of mathematics to create custom treatment plans effortlessly, all from the convenience of your smartphone. Whether you're in the office, traveling, or anywhere in between, Ortho Calculator provides robust tools at your fingertips. Plan smarter, faster, and with greater accuracy using the ultimate mobile solution! Ortho Calculators included with All Access subscription: • Maxillary Space Calculator • Mandibular Space Calculator • Expansion Calculator • Extraction Calculator • Space Maintenance Calculator • Surgical Expansion Calculator • Super Calculator • Treatment Plan Calculator Support and Innovation: By subscribing, you’re not just unlocking advanced orthodontic tools—you’re directly supporting the passion and countless hours that went into creating them. Ortho Calculator is built on dedication and a commitment to ongoing improvement. Your subscription enables us to refine features and innovate further, ensuring this tool continues to deliver value for orthodontic professionals. Subscription Information: Experience full access for 1 week before committing to a monthly or annual plan. After the free trial ends, you’ll be automatically enrolled in your chosen plan, which will auto-renew unless canceled at least 24 hours before the renewal date. You can manage or cancel your subscription anytime through your account settings. By subscribing, you agree to these terms. Disclaimer: The information provided is intended solely for informational and educational purposes for licensed dental professionals. The orthodontic calculators, while based on evidence from reputable orthodontic literature as well as clinical experience, are tools designed to assist clinical decision-making. They are not intended to make final treatment decisions. Do not take the outputs from these calculators at face value; they are meant to complement, not replace, professional judgment and critical thinking. These calculators are generalized and not customized for any specific patient case. It remains the responsibility of the treating orthodontist or dentist to thoroughly assess and tailor care to each patient’s individual needs. By using this tool, you acknowledge that the ultimate responsibility for patient care lies with the treating clinician. Ortho Calculator Inc. will not be held liable for any risks, complications, or outcomes associated with acting on the information provided by this website. The Ortho Calculators are not intended for use by the general public. If you are not a licensed dental professional, please refrain from using or relying on the calculators or content provided here. By using the Ortho Calculators, you acknowledge and agree to the terms outlined in this disclaimer. Terms of use: https://www.orthocalculator.org/terms-of-use Privacy policy: https://www.orthocalculator.org/privacy-policy Ready to make informed, math-driven decisions? Start planning with Ortho Calculator now!

About

3D

Features
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Capture Precise 3D Scans. Faster. Easier. Built for O&P. 3D-Sidekick is the go-to scanning app for orthotists and prosthetists who need high-quality 3D models — without the complexity. Whether you're scanning a limb, foot, or any body-part, 3D-Sidekick delivers clean, accurate results in seconds. Built specifically for O&P workflows, it helps you: Save time with fast, intuitive scanning Capture clean, usable scans — every time Attach picture, forms or information to your scans before exporting Export in STL or OBJ formats ready for your design tools Compatible with TrueDepth and Structure Sensor, and powered by the proven Structure SDK, 3D-Sidekick combines medical-grade performance with ease of use. Forget clunky tools or generic scanners — this is scanning done right for O&P professionals. Privacy Policy: https://skhosting.blob.core.windows.net/policies/3d-sidekick-privacy-policy-EN.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Ortho Calculator4 screens
3D4 screens

Verdict

The call

The clearest difference is update cadence: 3D at every 2 months against Ortho Calculator's every 7 months. Ortho Calculator's advantage is iOS requirement (15.0 vs 17.2). 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. Ortho Calculator sells 2 in-app purchases, starting at $1.99 per month and 3D sells 3 in-app purchases, starting at $19.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ortho Calculator ships an update every 7 months, 3D every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Ortho Calculator versus 3D: the parameters behind the verdict, then further details
ParameterOrtho Calculator3D
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.2
Further details — not scored
Size67 MB45 MB
Age rating17+17+
DeveloperDaniel RichmondSidekick Interactive, Inc.

In-app purchases

2 purchases

Ortho Calculator

Subscriptions2
  • All Access Monthly7 Days trial$1.991 Month
  • All Access Annual7 Days trial$9.991 Year
3 purchases

3D

Subscriptions3
  • Weekly Plan7 Days trial$19.997 Days
  • Monthly Plan7 Days trial$49.991 Month
  • Annual Plan7 Days trial$499.991 Year

Questions

Is Ortho Calculator free?
Ortho Calculator is free to download, with in-app purchases available.
Is 3D free?
3D is free to download, with in-app purchases available.
Do Ortho Calculator or 3D have ads?
Neither Ortho Calculator nor 3D shows ads.
Which is updated more often, Ortho Calculator or 3D?
Ortho Calculator ships an update every 7 months, and 3D every 2 months. Most recently, Ortho Calculator was updated on October 24, 2026 and 3D on October 28, 2026.

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