SimpleUX vs mos.viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleUX
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SimpleUX is an app for moderated user testing - nothing more, nothing less. You set up a test, record it and collect those valuable, qualitative UX test insights all in one place - without the huge costs. The philosophy behind SimpleUX: It shouldn’t be complicated or expensive to do moderated testing with people. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
mos.viewer
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With the mos.viewer app, you can effortlessly access a real-time demo of your newly developed app with Mobility Suite mos. As a handy development tool, mos.viewer allows you to preview the look and feel of your app, providing a comprehensive platform to check and optimize its functions. How it works: Open mos.launcher, scan QR with mos.viewer, and have your app demo readily available. Utilize mos.viewer for: • Real-time Testing: Leverage mos.viewer as a development tool and check your app in real-time across various devices, platforms, and operating systems. • Visual and Functional Evaluation: Evaluate and optimize the visual and functional aspects of your app, refining its user interface for enhanced user-friendliness and visual appeal. • Element Library: Access a comprehensive library of different elements used in your app. • Proof of Concept Presentation: Impress your product managers with the simplicity of presenting the proof of concept. • Stakeholder Feedback: Showcase the development progress of your app and gather valuable feedback from customers and stakeholders. Perfect for agile app development. • Inspiration and Potential: Explore showcases of apps developed with Mobility Suite mos., gaining inspiration for your app development. Understand the potential and possibilities that Mobility Suite mos. offers for your creative endeavors.
Screenshots
Verdict
The clearest difference is in-app purchases: mos.viewer at none against SimpleUX's 6. mos.viewer also leads on iOS requirement (13.0 vs 17.0). SimpleUX's advantage is update cadence (every 3 weeks vs every 4 months). 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
Both are free to download. SimpleUX sells 6 in-app purchases, starting at $3.99 per month. mos.viewer asks for nothing beyond the download.
SimpleUX ships an update every 3 weeks, mos.viewer every 4 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.
| Parameter | SimpleUX | mos.viewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 23 MB |
| Age rating | 17+ | 4+ |
| Developer | SimpleUX | Fabrik 19 AG |
In-app purchases
SimpleUX
- iPad Monthly plan$3.991 Month
- Desktop Monthly plan$6.991 Month
- Bundle Monthly plan$9.991 Month
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- iPad Annual plan7 Days trial$19.991 Year
- Desktop Annual plan$39.991 Year
- Bundle Annual plan$59.991 Year
mos.viewer
No in-app purchases









