Tracebook vs ZS DSP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
ZS DSP
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This is a tuning software that connects to a DSP. You can select songs from the USB drive
Screenshots
Verdict
The clearest difference is update cadence: ZS DSP at every 3 days against Tracebook's every 3 weeks. 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.
Tracebook ships an update every 3 weeks, ZS DSP every 3 days. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.
| Parameter | Tracebook | ZS DSP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcus Painter | Maslim Djanuanto |
In-app purchases
Tracebook
No in-app purchases
ZS DSP
No in-app purchases
