---
id: freeing-space.why-do-caches-keep-coming-back
url: https://storagestudio.us/faq/freeing-space/why-do-caches-keep-coming-back
category: "Freeing up space"
subcategory: "Caches and clutter"
question: "Why do app caches fill up again after Storage Studio clears them?"
alt_questions:
  - "Cache grows back after cleaning"
  - "Why is my cache huge again a week later?"
  - "Is clearing caches pointless?"
  - "Cache keeps filling my disk"
  - "How do I stop caches regrowing?"
short_answer: "Apps refill their caches as you use them, so caches always regrow to what your usage needs. Clear them on a schedule, or move a consistently large one to your fast drive."
tags: ["caches", "maintenance", "growth"]
related: ["https://storagestudio.us/faq/freeing-space/can-i-stop-one-app-filling-my-disk", "https://storagestudio.us/faq/freeing-space/how-does-the-space-watch-work"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Why do app caches fill up again after Storage Studio clears them?

Because that's what caches do: apps fill them as you use them, so they always grow back to roughly the size your usage needs. Clearing is still worthwhile when a cache has grown far beyond that, or holds old material you'll never use again.

Three ways to keep on top of it without thinking about it:

- Let cache cleanup run as part of Free Up Space or Run Tuhi on a regular schedule.
- Move a consistently large cache to your fast drive from [What's Using Space](https://storagestudio.us/faq/freeing-space/what-is-whats-using-space), so its growth happens there.
- Let the space watch tell you if one app suddenly starts growing fast — see [how the space watch works](https://storagestudio.us/faq/freeing-space/how-does-the-space-watch-work).