Material Select|Material Guide
Find materials by use
Only for iPhone
$9.99 · Designed for iPhone. Not verified for macOS.
iPhone
Choose a part and its environment to see 3 materials in about a minute. Explore 300 materials, then compare standards and processing as needed. No subscriptions or ads.
Enter a use such as "mold, wear priority" to organize candidates from 300 materials and the conditions to check next.
When a drawing needs a material callout or the service environment changes, it is easy to research candidates, standards, and manufacturing methods separately. Material Select keeps the work from discovery and comparison through cost estimates and saved project notes in one app.
■ Find candidates from a use
Supports 13 categories and 27 environments, including aircraft, space, seawater, molds, and electrical insulation. Search 300 metals, polymers, ceramics, composites, and more by name, alias, standard, or use. Reference candidates remain available without every condition entered; strict results distinguish an unsuitable material from missing data.
■ Compare standards and processing
Switch between JIS and US ASTM, SAE, AISI, UNS, and AA designations. Compare properties, machinability, and sources for up to three materials. Filter 22 surface-treatment processes by substrate, purpose, dimensional effect, and process temperature.
■ Keep the basis and cost of a study
Estimate per-part total cost with material, machining, treatment, and inspection costs kept separate. Save and restore conditions and candidates as project revision history. Reference weight calculations from volume, rectangular stock, or round stock, favorites, and SI/US unit switching are included.
【How to use】
1. Search by use or material name
2. Compare standards, properties, and machinability
3. Save the source material to check and the project study
【Purchase and data】
One app purchase unlocks all features. There are no in-app purchases, subscriptions, ads, or account registration. Material data and projects stay on the device. An external browser opens only when you tap a price-search or primary-source link.
【Reference information for material studies】
The app distinguishes 14 materials with detailed properties from materials indexed mainly by name and use. Representative values, relative machining indices, candidates, and calculations do not guarantee design approval or standards compliance. JIS and US standards are not necessarily fully interchangeable. For final design, confirm current standards, material certificates, product form, and actual service conditions with a qualified professional. The app does not automatically verify the authenticity or currency of supplied documents.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added a new flow that takes you from two choices—the part and its environment—to three reference materials in under a minute. The directory now covers 300 materials, with professional requirements available only when needed.
The developer, Tomoya Kajiwara, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tomoya Kajiwara
- Size
- 4.7 MB
- Category
- Reference
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Tomoya Kajiwara

