UX vs Diem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UX
This app helps user experience designers time tasks during usability tests. Create custom tests and tasks for different apps, then record and capture screenshots of task completion times. Results are saved to your device's photo album.
- Task timing for usability tests
- Customizable test creation
- Task sequence setup
- Screenshot capture of results
- Results saved to photo album
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UX is an app to assist user experience designers time how long it takes users to complete tasks during usability tests. Create tests for each app your are testing and then create and customize the tasks you will have the user go through in your product. When you start the test you will be able to time how long the user takes to complete each task. At the end of the test you can click "capture" to take a screen shot of the times it took that user to conduct each task. These screenshots are stored in the UX photo album of your iPhone.
Diem
This app provides a tranquil space to store links you want to revisit, automatically summarizing content like articles, posts, and recipes. It aims to eliminate the clutter of saved items you never return to, making content easily digestible.
- Save articles, posts, maps, recipes, and threads
- Automatic content summarization
- Organized link management
- Calm and focused interface
- Content digestion for quick recall
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diem is a calm place for the links you actually want to come back to. Save anything — articles, Instagram posts, maps, recipes, threads — and diem auto-summarizes each one so the page is already digested by the time you open it. No more "later folder" graveyard. No more re-reading the same headline three times to remember why you saved it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Diem at 5.0 against UX's 3.0. Diem also leads on update cadence (weekly vs every 23 months). UX's advantage is ratings volume (4 vs 1) and iOS requirement (13.4 vs 16.4). On price, ads, in-app purchases and monetization model 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. UX sells 3 in-app purchases, starting at $6.99 per 7 days and Diem sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Diem holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
UX ships an update every 23 months, Diem weekly. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.
| Parameter | UX | Diem |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 23 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.4 — better | 16.4 |
| Further details — not scored | ||
| Size | 27 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | A & A Design Inc. | Jiwoong Jeon |
Customer experience
UX
Diem
In-app purchases
UX
- Pro$6.997 Days
- Pro3 Days trial$29.993 Months
- Pro3 Days trial$49.991 Year
Diem
- diem Pro1 Month trial$4.991 Month
- diem Pro Annual1 Month trial$49.991 Year
