Comparison

AutoTech vs Scrap Science

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

Head to head
About

AutoTech

This automotive calculator provides quick computations for over 45 formulas across various vehicle systems. It supports both U.S. and metric units, making it a versatile tool for mechanics, technicians, and enthusiasts.

Highlights
  • 45+ automotive formulas
  • Aerodynamics calculations
  • Chassis calculations
  • Drivetrain calculations
  • Engine calculations
  • Performance calculations
  • Suspension calculations
  • Tire calculations
Features
Read full description

AutoTech is an automotive calculator that offers the mechanic, technician or enthusiast quick computation of 45+ formulas in the areas of aerodynamics, chassis, drivetrain, engine, performance, suspension, and tires. Supports both U.S. and metric units.

About

Scrap Science

This AI-powered app helps U.S. scrap recycling professionals identify scrap categories, assess material content, and impurity levels. It provides real-time pricing for identified materials, enabling profitable decisions on the spot. Streamline your workflow with this fast, easy, and reliable tool.

Highlights
  • AI-powered scrap identification
  • Material content assessment
  • Impurity level analysis
  • Real-time pricing
  • Workflow streamlining
  • Patent-authorized innovation
Features
Read full description

Our cutting-edge app, designed specifically for professionals in the U.S. scrap recycling industry, is the ultimate tool to streamline your workflow. Powered by advanced AI technology, the app can instantly identify scrap categories, assess material content, impurity levels, and more — all with unmatched accuracy. It even provides real-time pricing for the identified materials, giving you the information you need to make smart, profitable decisions on the spot. With patent-authorized innovation, this app stands alone in the recycling industry, offering a fast, easy, and reliable way to evaluate scrap materials. Whether you’re in the yard or on the move, stay ahead with powerful tools designed for today’s recycling professionals. Try it out -Intermediate member rights: Activate 10 recognitions results viewing -Purchase type: Once -Purchase price: Based on the iAP application information, for example, Try it out is $0.99. -Payment: After the user confirms the purchase and makes the payment, it will be credited to their iTunes account. -Privacy Policy: https://share.doctorscrap.com/privacy_policy_en.html -User Agreement: https://share.doctorscrap.com/user_policy_en.html Monthly auto-subscription -Advanced member rights: Unlimited viewing of recognition results and prices per month -Subscription cycle: 1 month -Subscription price: Based on the iAP application information, for example, a continuous monthly subscription for products is $9.99 per month. Enterprise Package -Advanced member rights: Unlimited viewing of recognition results and prices per month -Subscription cycle: 1 month -Subscription price: Based on the iAP application information, for example, a continuous monthly subscription for products is $9.99 per 10 people per month) -Payment: After the user confirms the purchase and makes the payment, it will be credited to their iTunes account. -Cancel Renewal: To cancel the renewal, please manually turn off the automatic renewal feature in the iunes/Apple 1D settings management 24 hours before the current subscription cycle expires. -Renewal: The Apple iTunes account will be charged within 24 hours before its expiration. After successful deduction, the subscription cycle will be extended by one subscription cycle. -Privacy Policy: https://share.doctorscrap.com/privacy_policy_en.html -User Agreement: https://share.doctorscrap.com/user_policy_en.html -Automatic Subscribe Service Agreement: https://share.doctorscrap.com/subscribe_en.html

Screenshots

AutoTech4 screens
Scrap Science3 screens

Verdict

The call

The clearest difference is price: Scrap Science at Free against AutoTech's $1.99. Scrap Science also leads on update cadence (every 2 weeks vs every 32 months). AutoTech's advantage is in-app purchases (none vs 6). On review sentiment, ads, device support 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

Scrap Science is free to download; AutoTech costs $1.99 up front. Scrap Science sells 6 in-app purchases, starting at $9.99 per month. AutoTech asks for nothing beyond the download.

UpkeepUpdate frequency

AutoTech ships an update every 32 months, Scrap Science every 2 weeks. The most recent releases landed on September 10, 2026 and June 11, 2026 respectively.

Scorecard4 real differences · 6 level
AutoTech versus Scrap Science: the parameters behind the verdict, then further details
ParameterAutoTechScrap Science
Price$1.99Free — better
Rating—4.3 (3 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 32 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size2 MB71 MB
Age rating4+4+
DeveloperSteven ClarnerTY International LLC

Customer experience

AutoTech

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Scrap Science

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AutoTech

No in-app purchases

6 purchases

Scrap Science

Subscriptions5
  • Monthly auto-subscription$9.991 Month
  • Enterprise Package 1$79.991 Month
  • Enterprise Package 2$148.991 Month
Show 2 more
  • Enterprise Package 3$209.001 Month
  • Enterprise Package 4$590.001 Month
One-time1
  • Try it out$0.99

Questions

Is AutoTech free?
AutoTech costs $1.99, with no in-app purchases.
Is Scrap Science free?
Scrap Science is free to download, with in-app purchases available.
Do AutoTech or Scrap Science have ads?
Neither AutoTech nor Scrap Science shows ads.
Which is updated more often, AutoTech or Scrap Science?
AutoTech ships an update every 32 months, and Scrap Science every 2 weeks. Most recently, AutoTech was updated on September 10, 2026 and Scrap Science on June 11, 2026.

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