Call of Duty: Mobile typically uses 10-15GB once you've downloaded high-resolution textures, extra maps, and seasonal content on top of its base install. On Android the bulk of that lives in the OBB expansion files under Android/obb/com.activision.callofduty.shooter, while on iOS you free space by offloading at Settings > General > iPhone Storage > Call of Duty > Offload App. Your account and unlocks are cloud-bound, so neither approach loses your progress.
TL;DR
- COD Mobile commonly reaches 10-15GB with HD resources, maps, and seasonal downloads.
- On Android the large OBB data sits in Android/obb; on iOS it's bundled into the app's Documents & Data.
- Lower the in-game graphics/resource download settings to stop the file from re-bloating.
- iOS can offload the whole app but can't selectively clear COD's cached maps.
- Deleting OBB or offloading forces a re-download; your Activision/account progress is safe.
Why is Call of Duty Mobile so large?
The App Store or Play Store download is just the launcher and core game. On first run, COD Mobile pulls down a resource pack, and from there it adds HD textures, additional maps, audio, and seasonal battle-pass content. If you opt into high-quality resources, the install climbs fast. Cached match and UI data piles on top.
On iPhone, check the breakdown at Settings > General > iPhone Storage > Call of Duty; the large "Documents & Data" line is downloaded game data. On Android, the heavy expansion files are the OBB.
Where do the OBB files live on Android, and is it safe to clear them?
COD Mobile's expansion data sits at Android/obb/com.activision.callofduty.shooter. You can free space through the system rather than a file manager:
- Open Settings > Apps > Call of Duty: Mobile > Storage.
- Tap Clear cache to drop temporary data safely.
- Tap Clear storage / data for a deeper wipe (you'll re-download resources and log back in).
Deleting the OBB folder by hand frees the most space but forces the game to re-download those gigabytes on next launch. If you're weighing that move, read is it safe to delete Android OBB files first.
How do I free space on iPhone?
iOS doesn't expose OBB-style files, so you work at the app level:
- Open Settings > General > iPhone Storage.
- Tap Call of Duty.
- Tap Offload App to clear data while keeping the icon, or Delete App for a full reset.
- Reopen or reinstall and let it re-download the resources it needs.
To keep the size down afterward, lower In-game Settings > Audio & Graphics resource quality so the game caches lighter assets.
What does the OS do natively, and where does it stop?
Both platforms give you blunt instruments. iOS will auto-offload unused apps and can purge caches under pressure, but it can't reach inside COD to trim just the cached maps. Android lets you clear cache versus clear data, which is more granular, but "clear data" still wipes everything local. Neither OS surgically removes only the stale seasonal assets you no longer play.
Will I lose my rank or unlocks?
No. Your COD Mobile rank, loadouts, skins, and battle-pass progress are tied to your linked account (Activision, Google, Facebook, or Apple) and stored server-side. Clearing cache, deleting OBB, offloading, or reinstalling only removes local files. The cost is the re-download: expect to pull several gigabytes again on next launch. Always confirm your account is linked before a big wipe so progress reloads cleanly.
FAQ
Does clearing COD Mobile cache delete my progress?
No. Progress and unlocks live on the game's servers under your linked account. Clearing cache or data only removes local files; you re-download resources and log back in to restore everything.
How much storage does Call of Duty Mobile need?
Budget 10-15GB. The base download is smaller, but HD resources, extra maps, and seasonal content push the real footprint into double digits, growing with each season.
Can I move COD Mobile OBB files to an SD card?
On many Android devices you can move the app (and its OBB) to an SD card via the app's storage settings if the manufacturer allows it. iPhones have no expandable storage, so offloading is the equivalent.
Keep room for the next season
Seasonal updates mean COD Mobile re-grows every few weeks, so it pays to keep spare headroom rather than fighting one game's cache. Cleanor for iPhone clears the large videos and duplicate photos that usually dwarf any game install, giving COD room to download cleanly. Walk through our free up iPhone space guide, and when an install is genuinely huge, see how to offload large apps to reclaim gigabytes.