Google Drive vs iCloud——どっちが優秀？
Google Driveを選ぶべき人: Googleエコシステムにいて、Docs・Sheets・Gmailとシームレスに連携するファイルストレージが欲しい人
iCloudを選ぶべき人: Apple全投入なら考えずに使えるバックアップとSyncが欲しいAppleユーザー
私たちの見解: Google Drive for simplicity, iCloud for power users.
| Google Drive | iCloud | |
|---|---|---|
| 料金 | 15 GB free (shared with Gmail and Photos) | Google One 100 GB $1.99/mo | Free 5GB with any Apple ID | iCloud+ 50GB $0.99/mo |
| 機能 | Deep Google Workspace integration, Real-time collaboration on Docs/Sheets/Slides, Powerful search across files, Shared drives for teams, Offline access on mobile and desktop | Seamless sync across iPhone, iPad, and Mac, iCloud Drive with Finder and Files app integration, Private Relay for anonymous web browsing (paid), Hide My Email for disposable addresses, Shared family storage with up to 5 members |
| こんな人に最適 | Anyone already in the Google ecosystem who wants seamless file storage tied to Docs, Sheets, and Gmail | Apple users who want effortless backup and sync without thinking about it — it just works if you are all-in on Apple |
| 学習コスト | 簡単 | 簡単 |
本当の違い
Both offer free tiers, so the real question is what you get when you start paying.
Google Drive stands out with Deep Google Workspace integration and Real-time collaboration on Docs/Sheets/Slides. iCloud counters with Seamless sync across iPhone, iPad, and Mac and iCloud Drive with Finder and Files app integration.
Google Drive's Achilles heel: 15 gb shared across gmail, drive, and photos fills up fast — you’ll be paying within months of heavy use. iCloud's: terrible experience on windows and android — and 5gb free in 2026 is embarrassingly stingy. Pick whichever weakness you can live with.
結論
If you value deep google workspace integration and googleエコシステムにいて、docs・sheets・gmailとシームレスに連携するファイルストレージが欲しい人, go with Google Drive. If apple全投入なら考えずに使えるバックアップとsyncが欲しいappleユーザー matters more, iCloud is your pick. Neither is a bad choice — but one will fit your workflow better.