DuroMod vs Userfeel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DuroMod
Convert durometer readings to elastic modulus for polymers. This tool supports all 12 durometer scales conforming to ASTM D2240-05, providing accurate material property data.
- Convert durometer readings to elastic modulus
- Supports all 12 durometer scales
- Conforms to ASTM D2240-05
- Based on linear elastic indentation mechanics
- Developed at Rheology Research Center
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Get Young's modulus from your durometer! Get more out of your polymer durometry. Use DuroMod to convert your durometer reading to the elastic modulus of the measured rubber or plastic. DuroMod works for the Shore scale and all 12 durometer scales that conform to ASTM D2240-05 or equivalent. DuroMod conversions were developed at the Rheology Research Center of the University of Wisconsin at Madison, and are based on linear elastic indentation mechanics.
Userfeel
This app facilitates remote usability testing by recording testers' screens and voices as they navigate websites and apps. It helps businesses understand user behavior and improve website performance by providing insights from real users.
- Record screen and voice during tests
- Upload test recordings to server
- Remote usability testing
- Multi-device testing (desktop, mobile, tablet)
- Multilingual tester panel access
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Userfeel.com provides remote usability testing on desktop, mobiles and tablet. This app is used by the testers in order to record the usability test. Usability testing is the easiest way to increase your website's performance. It lets you see your website with your users' eyes. Studies by the Norman Nielsen group show that investing 10% of your development budget on usability testing increases conversions by 83%. Userfeel.com provides not only the platform and the apps for usability testing, but a huge panel of thousands of multilingual testers from all over the world as well. The app records the tester's screen and voice as he performs the test and uploads the generated video back to the userfeel.com server.
Screenshots
Verdict
The clearest difference is review sentiment: DuroMod at 100% against Userfeel's 28%. DuroMod also leads on rating (5.0 vs 3.1). Userfeel's advantage is price (Free vs $4.99) and update cadence (every 3 weeks vs every 6 months). On ads, in-app purchases, 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
Userfeel is free to download; DuroMod costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
DuroMod holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Userfeel has 94 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of DuroMod's written reviews are positive against 28% of Userfeel's.
DuroMod ships an update every 6 months, Userfeel every 3 weeks. The most recent releases landed on June 1, 2026 and August 21, 2026 respectively.
| Parameter | DuroMod | Userfeel |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 3.1 (94 ratings) |
| Positive reviews | 100.0% of reviews — better | 27.8% of reviews |
| Number of ratings | 1 | 94 — better |
| Update frequency | Every 6 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 0 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Cerhan | Userfeel Ltd |
Customer experience
DuroMod
Userfeel
In-app purchases
DuroMod
No in-app purchases
Userfeel
No in-app purchases
Questions
Is DuroMod free?
Is Userfeel free?
Which has better reviews, DuroMod or Userfeel?
Do DuroMod or Userfeel have ads?
Which is updated more often, DuroMod or Userfeel?
Other comparisons
