Alternatives to Dropbox
Dropbox started as the simplest way to sync files across devices, but most operating systems now include that feature for free. The decision after leaving is whether built-in sync covers your needs, whether you need shared folders for work, or whether you were paying for storage you can get cheaper elsewhere.
Options worth considering
Use the sync already built into your operating system
Windows includes OneDrive. Mac includes iCloud Drive. Both sync files across devices without a separate app or subscription. If your Dropbox usage was mainly keeping documents and photos in sync between a computer and a phone, the built-in option may already cover it. You lose cross-platform sync between Windows and Mac, which Dropbox handles well and OS tools do not.
Switch to Google Drive if you already use Gmail and Google Docs
Google Drive offers 15 GB free and paid tiers through Google One. If you already work in Google Docs, Sheets, and Slides, Drive integrates directly with those tools. File sharing and collaboration are strong. The tradeoff is that Google Drive's desktop sync app is less seamless than Dropbox for heavy local file workflows.
Use OneDrive with Microsoft 365 if you need Office tools
Microsoft 365 includes 1 TB of OneDrive storage along with Word, Excel, and Outlook. If you need both file storage and Office productivity tools, this bundle may cost less than paying for Dropbox and Office separately. OneDrive sync on Windows is tightly integrated. On Mac it works but is less polished than on Windows.
Keep the Dropbox free tier for light use
Dropbox Basic offers 2 GB of free storage. If you only need a few key files synced across devices or a small shared folder, the free tier may be enough. You lose smart sync, extended version history, and the larger storage pool, but basic file sync still works. This avoids switching costs if your usage is light.
Move critical files to local storage and stop paying for cloud sync
If your Dropbox usage was mostly backup rather than active sync, copying files to an external drive or a NAS eliminates the monthly cost. You lose automatic syncing and anywhere-access from your phone, but you own the storage outright. This works if you rarely access files from multiple devices and mainly wanted a safety copy.