Comparison

Design Materials vs Let's Fix That

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

Head to head
About

Design Materials

This app serves as an offline reference guide for various design materials, including polymers and metals. It allows users to manage their own material data, view 3D models, and capture objects with their device's camera. Ideal for professionals and hobbyists involved in product design and 3D printing.

Highlights
  • Offline material reference guide
  • Custom material and resin management
  • 3D model viewer and import/export
  • Object capture via device camera
  • Favorites and notes section
  • Cross-device compatibility (iOS, macOS)
Features
Read full description

Design Materials is an offline material reference guide trusted by hundreds of Engineers, Architects and Designers all over the World. The App was created to be a personal tool to help me take design decisions during the concept ideation of industrial products, in particular for 3D printing. Due to high demand, I decided to make it public and share it's information and power. Basically, it provides the fundamentals for most design/engineer materials on the market, based on reliable and curated academic sources. In addition, you can now create and manager your own Material, Resin or Filament data. Finally, the App features Apple Intelligence (AI) with a pair of Entity Masters in material engineering and STEM: HAL 9000 and Elemento, which can be accessed 24/7 while being on or offline (no internet). The guide contains material categories such as polymers, metals, naturals and more. All of these include synthetic, organic, bio-degradable, plastic, and much more subcategories. Each material contains information such as: About, Properties, Tags, Applications, Types and Photos. HAL 9000 & Elemento (AI entities): The legend of HAL is back. Ask anything from space to robotics or biology, HAL and Elemento are Gods of material engineering and science. HAL does precise flawless analysis while Elemento brings fresh human creativity with an attitude. In addition, you can choose the Tone of AI: Formal, Friendly, Direct or Arrogant. Both AI Entities work offline 24/7. Other features includes: • AI Chat with HAL 9000 or Elemento • Material Packs (subscribers) • 3D-model viewer/import/export • Object Capture: Scan Objects • Favorites section • Offline reference (no Internet needed) • Long list of properties per material • Save Notes per material/resin/filament • Create Designs using Apple Pencil • Support for all iPhone screen sizes • Dark Mode • iPadOS support • MacOS support • Continuous Updates with New Content • UNIVERSAL PURCHASE - One Payment for all Devices New Pro version auto-renew subscriptions: - 1 year (Gold) | 3 month (Silver) | 1 month (Bronze) subscriptions* - Access to all material database ABOUT SUBSCRIPTIONS • Payment will be charged to iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.

 • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
 • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
 • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. 

• Terms of use (EULA): https://www.termsfeed.com/live/faff17b4-8765-4690-b57e-9aabde3d2950

About

Let's Fix That

Features
Read full description

“Let’s Fix That” is your all-in-one DIY assistant that helps you repair and troubleshoot common problems around the house, with your car, or with everyday electronics using the power of AI and curated YouTube videos. Whether you're a first-time fixer or a seasoned handyman, this app brings instant, step-by-step help right to your fingertips. Powered by AI. Backed by Experts. Designed for Everyday People. Key Features: Smart AI Search Ask how to fix almost anything—leaky faucets, flashing engine lights, noisy dryers—and instantly get clear answers plus relevant how-to videos from YouTube. Personalized Repair Feed Browse trending repairs others are working on and discover quick fixes you didn’t know you needed. Community Hub (NEW!) Share your own repair videos, tips, and photos. Like, comment, and learn from fellow fixers. Tools & Product Recommendations Get Amazon-powered affiliate product suggestions based on your repair needs — from wrenches to smart thermostats. Save Your Fixes Bookmark your favorite guides and videos so you can return to them when you're ready to roll up your sleeves. Secure Stripe Subscription Enjoy premium access through a safe and seamless subscription experience. Popular Fix Topics: How to unclog a sink drain Changing a flat tire Replacing a dryer belt Diagnosing check engine lights Patching drywall holes Restoring Wi-Fi to dead zones …and so much more! Why “Let’s Fix That”? We’re not just another video app. We’re a DIY knowledge hub built with AI and real-world know-how. No more getting lost on the internet. Find your fix — fast. Support & Feedback Questions or suggestions? We’re here to help at: https://rmif.systeme.io/blog-template-6/contact-us

Screenshots

Design Materials4 screens
Let's Fix That4 screens

Verdict

The call

The clearest difference is in-app purchases: Let's Fix That at none against Design Materials's 3. Let's Fix That also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (14.0.0 vs 18.6). On price, ads 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. Design Materials sells 3 in-app purchases, starting at $7.99 per month. Let's Fix That asks for nothing beyond the download.

UpkeepUpdate frequency

Design Materials ships an update every 3 months, Let's Fix That every 3 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Design Materials versus Let's Fix That: the parameters behind the verdict, then further details
ParameterDesign MaterialsLet's Fix That
PriceFreeFree
Rating4.5 (2 ratings) — better—
Positive reviews30.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.614.0.0 — better
Further details — not scored
Size28 MB64 MB
Age rating4+17+
DeveloperChrystian EnriquezEugene Hyden

In-app purchases

3 purchases

Design Materials

Subscriptions3
  • Bronze member$7.991 Month
  • Silver member$17.993 Months
  • Gold member3 Days trial$49.991 Year
None

Let's Fix That

No in-app purchases

Questions

Is Design Materials free?
Design Materials is free to download, with in-app purchases available.
Is Let's Fix That free?
Let's Fix That is free to download, with no in-app purchases.
Do Design Materials or Let's Fix That have ads?
Neither Design Materials nor Let's Fix That shows ads.
Which is updated more often, Design Materials or Let's Fix That?
Design Materials ships an update every 3 months, and Let's Fix That every 3 weeks. Most recently, Design Materials was updated on October 29, 2026 and Let's Fix That on October 28, 2026.

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