Comparison

Tinkercad vs Engineering Formulas

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

Head to head
About

Tinkercad

This app empowers aspiring designers and engineers with essential skills in 3D design, electronics, and coding. Learn through hands-on projects, build confidence, and bring your creations to life in the real world. It's a safe, ad-free environment for all ages to explore innovation.

Highlights
  • 3D design optimized for mobile
  • Circuit simulation with Arduino/micro:bit
  • 3D design from code (Codeblocks)
  • AR viewer for designs
  • Import/export various file formats
  • Educational tools for teachers
Read full description

Tinkercad is a free app that equips the next generation of designers and engineers with the foundational skills for innovation: 3D design, electronics, and coding. • FREE FOR EVERYONE: No strings attached. Start creating from the first click. • LEARN BY DOING: Build confidence, persistence, and problem-solving skills. • SAFE FOR ALL AGES: Ad-free. kidSAFE certified. Privacy first. KEY FEATURES • Easily build 3D with controls optimized for your device. • Connect, code, and simulate circuit components with Arduino and micro:bit microcontrollers. • Make 3D designs from code using Tinkercad Codeblocks. • Bring your designs into the real world with the Tinkercad AR viewer. • Import STL, OBJ and SVG files into the 3D design space to build on an existing design. • Export your files including STL, OBJ, USDZ, and SVG or send them to other programs. • All you need is a device and an internet connection. • Apple Pencil compatible. FOR EDUCATORS • Tinkercad Classrooms allows teachers to assign Activities, send and receive assignments, invite co-teachers, and monitor student progress—all from your dashboard. • Tinkercad Lesson Plans and starters available for students to get started with 3D CAD design, electronics simulation, and block-based programming. • Compatible with Google Classroom. Tinkercad is a free product from Autodesk, a leader in 3D design, engineering, and entertainment software. Tomorrow's innovators start here. Children’s Privacy Statement: https://www.autodesk.com/company/legal-notices-trademarks/privacy-statement/childrens-privacy-statement

About

Engineering Formulas

Features
Read full description

EngiRef is the all-in-one engineering reference app that works 100% offline. Access formulas, material properties, reference tables, and a powerful unit converter - all without internet connection. FORMULA LIBRARY Browse 140+ essential engineering formulas organized by discipline: • Mechanical Engineering: stress, strain, torque, power, gear ratios, spring design • Electrical Engineering: Ohm's law, AC/DC circuits, impedance, resonance • Civil/Structural: beam deflection, Euler buckling, Manning's equation • Thermodynamics: ideal gas law, Carnot efficiency, heat transfer • Fluid Mechanics: Bernoulli, Reynolds number, Darcy-Weisbach • Materials Science: Young's modulus, Poisson's ratio, fatigue analysis BUILT-IN CALCULATOR Enter your values and get instant results. Every calculation shows step-by-step solutions so you understand the process, not just the answer. Perfect for learning and exam preparation. MATERIALS DATABASE Access properties for 55+ engineering materials: • Carbon steels (AISI 1018, 1045, 4140, 4340) • Stainless steels (304, 316, 17-4 PH) • Aluminum alloys (6061-T6, 7075-T6, 2024-T3) • Titanium, copper, nickel alloys • Plastics (ABS, HDPE, Nylon, PEEK, Delrin) • Composites, concrete, and wood Compare up to 3 materials side-by-side with density, tensile strength, elastic modulus, thermal conductivity, and more. REFERENCE TABLES • Bolt specifications: Metric M3-M36, SAE/Imperial sizes • Pipe schedules: NPS dimensions and wall thickness • Wire gauges: AWG 0000-40 with ampacity ratings UNIT CONVERTER Convert between 16 categories including length, pressure, temperature, force, energy, flow rate, and viscosity. Accessible from any screen via slide-over panel. PHYSICAL CONSTANTS Quick reference for 34 constants including speed of light, gravitational constant, Boltzmann constant, Avogadro's number, and more. QUIZ MODE Test your knowledge with flashcard-style quizzes. Track progress across all disciplines. Prepare for FE and PE exams. ADDITIONAL FEATURES • Dark and light themes (follows system setting) • Favorites to bookmark frequently used formulas • Calculation history with timestamps • Create and save custom formulas • Export and share your data • LaTeX formula rendering • iPad-optimized layouts PRIVACY FOCUSED EngiRef collects zero personal data. No analytics, no ads. All your calculations and favorites stay on your device. We believe engineering tools should respect your privacy. Whether you are a student preparing for exams, a working engineer needing quick field reference, or a technician looking for material specs, EngiRef puts essential engineering knowledge in your pocket. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Engineering Formulas4 screens

Verdict

The call

The clearest difference is in-app purchases: Tinkercad at none against Engineering Formulas's 3. Engineering Formulas's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Tinkercad asks for nothing beyond the download.

UpkeepUpdate frequency

Tinkercad ships an update every 4 months, Engineering Formulas every 2 months. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

Scorecard2 real differences · 8 level
Tinkercad versus Engineering Formulas: the parameters behind the verdict, then further details
ParameterTinkercadEngineering Formulas
PriceFreeFree
Rating4.6 (20K ratings) — better—
Positive reviews58.8% of reviews—
Number of ratings20K — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.615.1 — better
Further details — not scored
Size12 MB45 MB
Age rating4+12+
DeveloperAutodesk Inc.Mobin Akhter

Bugs and requests

Tinkercad

Reported bugs

4 issues
  • Login issues and lost connection problems
  • Dimensions box repeatedly appearing
  • Designs reverting to earlier versions
  • Overlapping UI elements

Requested features

5 requests
  • Add support for Apple Pencil and trackpad
  • Improve alignment and grouping tools
  • Provide offline functionality
  • Expand library of shapes and templates
  • Implement better tutorial and documentation

Engineering Formulas

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tinkercad

No in-app purchases

3 purchases

Engineering Formulas

Subscriptions2
  • Weekly Premium$4.997 Days
  • Yearly Premium$29.991 Year
One-time1
  • Lifetime Access$54.99

Questions

Is Tinkercad free?
Tinkercad is free to download, with no in-app purchases.
Is Engineering Formulas free?
Engineering Formulas is free to download, with in-app purchases available.
Do Tinkercad or Engineering Formulas have ads?
Neither Tinkercad nor Engineering Formulas shows ads.
Which is updated more often, Tinkercad or Engineering Formulas?
Tinkercad ships an update every 4 months, and Engineering Formulas every 2 months. Most recently, Tinkercad was updated on October 25, 2026 and Engineering Formulas on October 20, 2026.

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