ZD 8.4 PRO vs Tracebook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZD 8.4 PRO
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ZD 18.4 PRO-DSD MKII The ZD 18.4 PRO-DSD MKII app allows the user to full control their ZEVOX ZD 18.4 PRO-DSD MKII at the Setting section to contour audio system to fit your tastes with the ability to apply crossovers, 31 bands of parametric/graphic EQ independent per channel, delay, assignable inputs/outputs, DSD audio player and even stream music, The ZD 18.4 PRO-DSD MKII is the right path to make great sound in your car.
Tracebook
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Tracebook is an independent public non-profit community that promotes the open exchange of loudspeaker system reference data measured by audio professionals for audio professionals. The app is an iOS version of the Tracebook website found at https://trace-book.org. The reference data includes: • Magnitude • Phase • Coherence • Measurement details
Screenshots
Verdict
ZD 8.4 PRO and Tracebook are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | ZD 8.4 PRO | Tracebook |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.6 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Maslim Djanuanto | Marcus Painter |
In-app purchases
ZD 8.4 PRO
No in-app purchases
Tracebook
No in-app purchases
