How I Freed Up 3GB of iCloud Storage Using Documents by Readdle's Deep Scan

The notification popped up on my lock screen just as I was leaving for a meeting on February 14th, 2026: "iCloud Storage Almost Full." I am on the 200GB tier, a plan that has historically sufficed for my needs as a workflow editor. I don’t hoard 4K videos, and my photo library is optimized. Yet, there I was, staring at 98% capacity with no obvious culprit.

My immediate instinct was to check the native iOS storage manager. It told me the usual suspects: Messages, Photos, and "System." But the numbers didn't add up. The "Documents" category was bloated, yet when I drilled down, the files seemed necessary. I wasn't about to delete client contracts or my ongoing research.

The issue wasn't that I had too many files; it was that I had the same files living in three different places simultaneously, doing nothing but consuming rent in my digital cloud.

The Invisible "Cross-Cloud" Hoard

My daily workflow involves a specific set of apps that, while individually efficient, created a messy ecosystem when combined. I often start a draft on my iPad using Nebo for handwriting, export it as a PDF to iCloud, and then upload a backup copy to a shared folder on Google Drive for my team.

Earlier this year, I spent three weeks conducting deep research for a piece on whether Arc Search is actually viable for multi-source academic research. During this process, I downloaded over 400 PDFs, web archives, and resource sheets. Because I was hopping between devices—iPhone on the commute, iPad at the desk, MacBook for the final write-up—I defaulted to a "save everywhere" mentality.

If a file was useful, I saved it to the "Downloads" folder on iCloud. If it was for a specific client, I dropped it into their folder on Dropbox. I also had a habit of dragging project folders into Google Drive for redundancy.

I didn't realize that every time I switched cloud providers to access a file, the system was generating a local cache. Furthermore, I had inadvertently created duplicate directories. A folder named "Q1_Research" existed in iCloud Drive, Google Drive, and the local "On My iPhone" storage. I wasn't just storing data; I was storing it three times over.

Why Documents by Readdle Was the Only Viable Fix

I could have spent an entire Sunday manually opening Finder and Google Drive side-by-side, but that is prone to human error. The native Files app on iOS does a great job of showing you what is there, but it is terrible at showing you relationships between files. It doesn't have a "Duplicate Finder" feature, and it certainly cannot scan across different cloud providers simultaneously.

I opened Documents by Readdle, an app I already use daily. I’ve long advocated for it because its Fill and Sign workflow beats Adobe Acrobat for speed, but I rarely dipped into its advanced file management tools.

The killer feature here is the "Analyze Storage" tool (found under the Settings or File menu in the latest 2026 update). Unlike standard storage managers that look at folder size, Documents performs a deep scan. It reads the binary signature of files. This means it doesn't just look for two files named "Project_Specs.pdf"; it identifies two files that are "Project_Specs.pdf" even if one is renamed to "Project_Specs_v2_final.pdf" and buried in a subfolder.

Crucially, because Documents acts as a central hub, I had logged into my iCloud, Google Drive, and Dropbox accounts within the app. This allowed the deep scan to see my entire digital footprint as a single volume, rather than isolated silos.

The 15-Minute Purge

The process was surprisingly surgical. Here is exactly how I reclaimed the space, ensuring I didn't lose any active work data.

1. The Setup: I launched Documents and navigated to the "Files" tab. I tapped the "Settings" gear icon and selected "Analyze Storage."
2. The Scope: I ensured all drives were toggled "On." The app warned me that indexing might take a few minutes. For a library of roughly 12,000 files, it took about four minutes.
3. The Filter: Once the analysis finished, I didn't look at "Large Files." I looked at "Duplicates." The screen showed a breakdown: 4.2GB of potential duplicates found.
4. The Verification: This is where you must pay attention. I didn't hit "Select All." The deep scan groups duplicates by sets. I opened a set containing 12 copies of a PDF invoice from 2024. I selected 11 of them to delete, keeping the one in my "Finance" folder in iCloud Drive.
5. The Cache Clearout: The biggest chunk of space—about 1.8GB—came from "Temporary" and "Cache" folders within my Google Drive and Dropbox syncs. These were fragments of files I had opened months ago but never fully closed or cleared.

I systematically went through the list, prioritizing file types I knew were static: .pdf, .jpg, and .png. I avoided .pages or .numbers files because live documents sometimes save version history that looks like a duplicate but isn't.

In total, I marked roughly 1,400 files for deletion. Hitting the "Delete" button felt like decluttering a physical room I didn't know I had. The counter on my iCloud storage dashboard didn't update instantly (cloud sync takes time), but by the next morning, I was sitting pretty at 15.4GB free.

Troubleshooting the Deep Scan

The workflow isn't always flawless. During my first attempt, the app crashed halfway through the scan. I also noticed some "false positives" where different versions of a document were flagged as identical because only the metadata had changed.

If you attempt this method and hit a snag, try these steps:

The Scan Crashes or Freezes If the app force-closes during the indexing phase, the issue is almost always a corrupted file within a connected cloud drive.

• The Fix: Disconnect one cloud provider at a time in the Documents settings. Run the scan on just your local files and iCloud. If that works, reconnect Google Drive and run a scan targeting only that drive. This isolates the bad file. Once found, move that specific file to the "Trash" outside of Documents to clear the corruption.

Files Reappear After Deletion You delete duplicates in Documents, but they pop back up a few hours later. This isn't a bug in Documents; it's a sync conflict.

• The Fix: Your cloud providers are fighting over the "Master" copy. Before using Documents to delete, ensure all your apps are fully synced. Open Dropbox, Google Drive, and iCloud Drive individually and wait for the sync icon to disappear. If you delete a file that hasn't finished uploading to the cloud, the server will push it back down to your device as a new file.

"Original" Files Look Identical to Duplicates Sometimes the algorithm picks the wrong file as the "Original" (e.g., keeping the copy in the trash and flagging the one in your Work folder).

• The Fix: Never use the "Auto-Clean" button for important documents. Always review the file path. If you see /icloud/Downloads/file.pdf and /googledrive/Work/2026/file.pdf, keep the one in the specific Work folder. The Downloads folder is almost always just a cache pit.

The Systematic Trade-off

I saved myself from upgrading to the 2TB tier, which would have cost roughly $10/month or $120/year. That’s the tangible win. The intangible win is the restored sanity in my file system.

However, there is a trade-off to this method. Documents by Readdle is powerful, but with great power comes great responsibility. When you delete a file from within Documents that is synced to Dropbox or Google Drive, it deletes it from the server and every other device linked to that account. There is no "Safe Trash" for cloud services in the same way there is for local storage.

I had one moment of panic where I deleted a folder of receipts only to remember I needed one for an expense report. I had to dive into the "Trash" bin of the specific cloud service on the web to recover it. This method requires a shift in mindset: you are not just cleaning your phone; you are administering a network.

The real lesson isn't just about freeing up 3GB. It’s about realizing that our "productivity stacks" are often bloated with inefficiencies. We duplicate data out of fear of losing it, but that fear creates a fragile, unmanageable mess. Using a tool like Documents forces you to confront the redundancy of your workflow.

My cloud storage is now leaner, and my sync speeds across devices have noticeably improved because the apps aren't churning through thousands of obsolete duplicate files anymore. If your storage warning pops up, don't just buy more space. Audit what you already have—you might be surprised how much of it is just digital debris.