CSI Pro vs UXtweak
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CSI Pro
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The CSI Pro Ignition is a programmable distributor for your (British) Classic Car, you can adjust and program the advance curves yourself. Two presets (modes) can be programmed, each with its own RPM and vacuum curve plus various other settings such as a RPM limiter, maximum total advance and and minimum rpm speed for activating the vacuum advance
UXtweak
Record your screen and voice while testing websites and apps to provide direct feedback. Answer questions about your user experience to help designers improve their products. Explore a sample study to understand the process.
- Record screen and voice feedback
- Answer experience-based questions
- Participate in mobile testing studies
- Test website and app usability
- Provide insights to designers
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UXtweak's app for conducting usability testing studies. UXtweak is a powerful UX research platform offering tools for improving usability of web sites and apps, from prototypes to production. Provide useful insights to app and web designers directly from your iPhone! Record how you use their products, answer questions about your experience, and help make their apps and websites better and more UX friendly! Features - Record your screen (and your voice) while you use an app and provide instant feedback to the app (web) designer - Answer questions describing your experience with the tested app - Try out what a Mobile Testing study looks like through the Try example study function Note: this app is intended for use with UXtweak Mobile Testing, Website Testing and/or Prototype Testing study links. These links will be provided to you by the app designer, developer, or UX researcher. You can try out the functionality of this app by tapping the Try example study button on the app's homescreen.
Screenshots
Verdict
The clearest difference is update cadence: UXtweak at monthly against CSI Pro's every 12 months. CSI Pro's advantage is iOS requirement (8.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CSI Pro ships an update every 12 months, UXtweak monthly. The most recent releases landed on September 16, 2026 and September 23, 2026 respectively.
| Parameter | CSI Pro | UXtweak |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 80.0% of reviews |
| Update frequency | Every 12 months | Monthly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Free |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 8.0 โ better | 14.0 |
| Further details โ not scored | ||
| Size | 9 MB | 77 MB |
| Age rating | 4+ | 12+ |
| Developer | Gernand van Ee | UXtweak j. s. a. |
In-app purchases
CSI Pro
No in-app purchases
UXtweak
No in-app purchases









