Zenless Zone Zero comes from the same publisher as Honkai: Star Rail and asks for a similar amount of space — roughly 3.7 GB according to the App Store listing. In every way that affects how it plays on a phone, though, it is the opposite kind of game.
Real-time combat makes frame rate load-bearing
Combat is action-based and built around timed dodges and counters. When the frame rate drops in a turn-based game you get a less pretty animation; when it drops here you miss the window. Performance stops being a matter of polish and becomes a matter of whether the game is fair to you.
The practical consequence is that lowering the graphics settings is not admitting defeat — a stable lower setting beats an unstable high one every time, and it is the first thing to try if the timing feels unresponsive rather than merely ugly.
Touch controls, and the case for a controller
On-screen controls for an action game mean your thumbs cover part of the screen you are trying to read, and precise timing through a piece of glass with no tactile feedback is genuinely harder than with buttons.
A connected controller removes most of that problem. If you are weighing one up, what to check before buying a phone controller covers the decision — it is a bigger upgrade for this category of game than for almost any other.
The practical details
- Roughly 3.7 GB to download, and it grows with updates. Use Wi-Fi.
- Requires iOS 14 or later.
- Apple rates it 13+. As with any game in this category, the randomised purchases matter more than the rating for a younger player.
Who it suits
People with reasonably current hardware who want something with mechanical depth on a phone. If your device is a few years old, the same publisher's turn-based Honkai: Star Rail delivers a comparable amount of game with none of the performance risk.
Sources
- Zenless Zone Zero on the App Store (opens in a new tab) — Apple (accessed )
- Zenless Zone Zero — official site (opens in a new tab) — HoYoverse (accessed )
- App Store product page — age rating, re-read (opens in a new tab) — Apple (accessed )
- Updated age ratings in App Store Connect (opens in a new tab) — Apple (accessed )
- Apple iTunes Lookup API — download size, US storefront (opens in a new tab) — Apple (accessed )
Corrections and updates
Corrections
- — The download was stated as 3.4 GB, a binary-units conversion of a figure the App Store displays in decimal as 3.7 GB. Corrected, with a note on the article.
Updates
- — Age rating on the product page changed from 12+ to 13+ after Apple replaced the 12+ and 17+ bands. The lookup API still returns the old value.







