Comparison

Design Materials vs Peer Pressure

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

Peer Pressure

This app encourages users to commit to real-life actions and share proof with friends, rather than just posting curated content. It fosters accountability through deadlines, group challenges, and focus sessions, building an earned reputation.

Highlights
  • Commit to actions with deadlines
  • Share proof of completion
  • Friends see commitments and outcomes
  • Group challenges and leaderboards
  • Focus sessions with visible timers
  • Track streaks and earned stats
Features
Read full description

Every other feed pays you for posting about a life. Peer Pressure only pays you when you actually live one. You can't post here without doing something first. No highlight reel, no performance, no scrolling for two hours to feel worse. Commit to something in front of your friends, do it, and post the proof. Don't do it, and they'll see that too. POST PROOF, NOT VIBES Set a commitment, give it a deadline, and lock it in. Your friends see it the second you post. When the deadline hits, everyone finds out how it went. A FEED THAT COSTS SOMETHING See what your friends are actually doing, not what they want you to think they're doing. Like the wins. Roast the failures. That's the whole app. GROUPS AND LEADERBOARDS Run group challenges and race your friends. A run club, a study group, a startup grind. Everyone can see who's actually showing up. LOCKEDIN FOCUS SESSIONS Start a session and your friends can see you're off your phone. The clock is watching, and so are they. STREAKS AND STATS Your streaks, your completions, your focus time. Reputation you had to earn instead of curate. You already know how much time you spend watching other people do things. Try being one of them.

Screenshots

Design Materials4 screens
Peer Pressure4 screens

Verdict

The call

The clearest difference is review sentiment: Peer Pressure at 100% against Design Materials's 33%. Peer Pressure also leads on in-app purchases (none vs 3) and iOS requirement (15.5 vs 18.6). On price, update cadence, 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. Peer Pressure asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Design Materials versus Peer Pressure: the parameters behind the verdict, then further details
ParameterDesign MaterialsPeer Pressure
PriceFreeFree
Rating4.5 (2 ratings) — better—
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings2 — better—
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.615.5 — better
Further details — not scored
Size28 MB11 MB
Age rating4+4+
DeveloperChrystian EnriquezYehoshua Serebryanski

Customer experience

Design Materials

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Peer Pressure

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Design Materials

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

Peer Pressure

No in-app purchases

Questions

Is Design Materials free?
Design Materials is free to download, with in-app purchases available.
Is Peer Pressure free?
Peer Pressure is free to download, with no in-app purchases.
Do Design Materials or Peer Pressure have ads?
Neither Design Materials nor Peer Pressure shows ads.
Which is updated more often, Design Materials or Peer Pressure?
Design Materials ships an update every 3 months, and Peer Pressure every 3 months. Most recently, Design Materials was updated on October 2, 2026 and Peer Pressure on October 10, 2026.

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