AutoTech vs Scrap Science
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 45+ automotive formulas
- Aerodynamics calculations
- Chassis calculations
- Drivetrain calculations
- Engine calculations
- Performance calculations
- Suspension calculations
- Tire calculations
Read full descriptionHide 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.
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.
- AI-powered scrap identification
- Material content assessment
- Impurity level analysis
- Real-time pricing
- Workflow streamlining
- Patent-authorized innovation
Read full descriptionHide 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
Verdict
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
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.
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.
| Parameter | AutoTech | Scrap Science |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.3 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 32 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Steven Clarner | TY International LLC |
Customer experience
AutoTech
Scrap Science
In-app purchases
AutoTech
No in-app purchases
Scrap Science
- Monthly auto-subscription$9.991 Month
- Enterprise Package 1$79.991 Month
- Enterprise Package 2$148.991 Month
Show 2 moreShow fewer
- Enterprise Package 3$209.001 Month
- Enterprise Package 4$590.001 Month
- Try it out$0.99









