Prof Pref vs AMBER ROCK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prof Pref
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The application allows not only to make a quick calculation, but also to save various tables and evenings.
AMBER ROCK
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1. The most advanced collector can be used for data monitoring 2. Accurate data, dynamic graph display, clear and clear 3. One click device addition 4. Data from multi-angle professional analysis equipment
Screenshots
Verdict
The clearest difference is update cadence: AMBER ROCK at monthly against Prof Pref's every 6 months. AMBER ROCK also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Prof Pref ships an update every 6 months, AMBER ROCK monthly. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.
| Parameter | Prof Pref | AMBER ROCK |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 96 MB |
| Age rating | 4+ | 17+ |
| Developer | Vitaly Kulagin | Shanghai Voltdeer Technology Co.,Ltd. |
In-app purchases
Prof Pref
No in-app purchases
AMBER ROCK
No in-app purchases
