Do not immediately press the paid payment button just because a "Storage is almost full" notification appears on your phone. The one you already have Free cloud storageStart by checking this out. It is also useful for safely storing important documents for immigrant life (passport copies, insurance documents, school records, etc.).
Google Drive — 15GB Free
Anyone with a Gmail account receives 15GB for free. Please note that since this storage is shared with Gmail and Google Photos, it fills up quickly if you keep photo backups enabled. Paid plans start at 1.99 KRW per month for 100GB. It is the best choice if you need document collaboration (Google Docs and Sheets).
Microsoft OneDrive — 5GB Free
5GB free per Microsoft account. If you use a Windows PC, it is highly likely that you already have an account. Its strengths are work centered on Office documents and integration with Windows. Paid plans start at approximately $1.99 per month for 100GB, and Microsoft 365 (including 1TB) starts at $69.99 per year.
Apple iCloud — 5GB Free
Everyone using an iPhone, iPad, or Mac gets 5GB for free. While it is automatically used for iPhone backups and photo synchronization, 5GB is often insufficient even for backing up a single iPhone, making it the main culprit behind "insufficient storage" notifications. Paid options start at 50GB for approximately 14T0.99 per month.
Dropbox — 2GB Free
The original device-agnostic sync. The free version is the smallest at 2GB, but sending file sharing links is convenient and the desktop app is stable. The paid version starts at 11.99 per month for 2TB, making it the most cramped option for free use.
Tips for Immigrant Life
1) Combining your existing free space brings the total to over 27GB. Please check how much is remaining on each account before making a payment. 2) Scanning or photographing important documents and uploading them to the cloud keeps them safe from loss or fire. 3) When sharing documents with family, it is safer to directly designate their account as the recipient instead of sharing a link.
Note: The capacity and conditions of free plans are subject to change, so please check the latest terms on each provider's official website before signing up.
source: ADIVI — Best Free Cloud Storage Services Compared · AppTrap — Best Cloud Storage 2026
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