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Home › iPhone Game Storage Calculator
Free tool · Updated 2026-06-27

iPhone Game Storage Calculator

Pick the games you want, enter your free storage, and find out in one tap whether they will all fit on your iPhone.

By Mustafa Bilgic, editor · Runs entirely in your browser — nothing is uploaded.

Running low on space is the number-one reason people delete a game they love. This calculator adds up the real download sizes of the games you want, compares them to your free storage, and tells you honestly whether they will fit — with a sensible buffer left for iOS itself. No app, no upload: it all runs in your browser.

Game Storage Calculator

Sizes are approximate and grow with updates and downloaded content. Apple recommends keeping at least 1–2 GB free for iOS to run smoothly, so we reserve a small buffer in the verdict.

How to read the result

  • Total download size is what the App Store will pull down. The real on-device footprint usually grows once a live-service game (Genshin Impact, Wuthering Waves) downloads voice packs and patches.
  • We keep a 2 GB buffer because iOS needs headroom for updates, photos, and temporary files. An iPhone with zero free space slows down and can fail to install OTA updates.
  • If you are tight on space, premium offline games like titles under 1 GB or low-storage picks give the most fun per megabyte.

Need to clear room first? Our guide on how to free up space for games walks through offloading apps, clearing Safari cache, and deleting downloaded media — usually good for several gigabytes in a few minutes.

Frequently Asked Questions

How much storage does Genshin Impact really use on iPhone?

The initial App Store download is small, but the full game plus its voice packs and the latest region updates take roughly 24 GB and keep growing with each major version. Budget around 25 GB to be safe.

How much free space should I keep on my iPhone?

Keep at least 1–2 GB free at all times. iOS uses that headroom for system updates, caching, and temporary files; running near zero causes stutter and failed installs. Our calculator reserves a 2 GB buffer for this reason.

Do these sizes match the App Store exactly?

They are close approximations of the typical download plus on-device data in 2026. Exact sizes vary by device, region, and game version — always check the figure shown on the App Store product page before downloading large games.

What games use the least storage?

Casual and arcade titles like Among Us, Subway Surfers, and Stardew Valley sit under 1 GB. See our guides to games under 1 GB and under 500 MB for the best small downloads.

Explore More

Best iPhone Games Under 1GB →Best Games Under 500MB →Best Low-Storage Games →Free Up Space for Games →Game Download Time Calculator →