ZDT vs Tetra Performance Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZDT
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ZDT: Online is a mobile training platform designed to give you access to a complete array of fitness tools. Inside the app, you’ll find detailed movement tutorials, structured workout routines, and specialized training programs tailored to your goals. You can connect with a supportive community by interacting with others enrolled in the same programs. Explore educational articles that cover key aspects of the training journey, from recovery to performance optimization. For a fully integrated experience, sync your smartwatch and MyFitnessPal to create a comprehensive fitness dashboard. Track your remote workouts, view upcoming scheduled sessions, and conveniently book coaching calls or in-person appointments—all within the app. ZDT: Online provides everything you need to stay consistent, accountable, and moving towards your goals.
Tetra Performance Training
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Tetra delivers training built with intention. Every program is crafted through smart progressions, evidence‑based development, and professional coaching oversight—so you always know you’re doing the right work at the right time. Track your habits, follow precise programming, and stay connected to expert guidance every step of the way.
Screenshots
Verdict
The clearest difference is update cadence: Tetra Performance Training at every 2 months against ZDT's every 25 months. Tetra Performance Training also leads on device support. On price, in-app purchases and iOS requirement 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.
ZDT ships an update every 25 months, Tetra Performance Training every 2 months. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.
| Parameter | ZDT | Tetra Performance Training |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 25 months | Every 2 months — better |
| Ads | — | No |
| In-app purchases | No | No |
| Devices | — | iPhone, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 48 MB | 42 MB |
| Age rating | 4+ | 12+ |
| Developer | Zachariah Dodge | David Jarrett |
In-app purchases
ZDT
No in-app purchases
Tetra Performance Training
No in-app purchases
Questions
Is ZDT free?
Is Tetra Performance Training free?
Which is updated more often, ZDT or Tetra Performance Training?
Other comparisons
