Table of Contents
Dropbox Transfer is a natural pick if you already keep your files in Dropbox: it delivers files with confirmation and lives inside a familiar ecosystem. Realtime Sender takes a different approach, built around much larger free transfers, no accounts, and files that don't stick around. This guide compares the two fairly so you can pick the right tool.
Quick Verdict
If you already live in Dropbox and mostly send small files, Dropbox Transfer is convenient. If you want to send large files (up to 30GB) for free without an account, Realtime Sender is the stronger fit — its free limit is far higher than Dropbox Transfer's 100MB free cap.
Side-by-Side Comparison
| Feature | Realtime Sender | Dropbox Transfer |
|---|---|---|
| Free file size | Up to 30GB per file | 100MB per transfer on free/Basic |
| Account required | No | Dropbox account required |
| Files auto-delete | After download or code expiry | Expires after a set period |
| Sharing method | 6-character code or link | Link |
| Delivery confirmation | Live status while transferring | Yes — download confirmation |
| Encryption in transit | TLS 1.3 | TLS |
| Best for | Large, free, private transfers | Existing Dropbox users |
Free File-Size Limits
This is the clearest difference. Dropbox Transfer's free (Basic) plan caps each transfer at 100MB; sending more means upgrading to a paid Dropbox plan, which raises the limit substantially (up to 100GB on higher tiers). Realtime Sender lets you send up to 30GB per file for free, which comfortably covers 4K video, design projects, large archives, and datasets without upgrading.
If your transfers are usually small documents and images, 100MB may be enough. If you regularly bump into "file too big" limits, the gap between 30GB and 100MB on the free tier matters a lot. For more options, see our roundup of the best WeTransfer alternatives.
Accounts & Convenience
Dropbox Transfer requires a Dropbox account to send. If you already use Dropbox, that's frictionless — your files are right there and sending is a couple of clicks. If you don't, you'll need to create an account first. Realtime Sender skips accounts entirely: pick a file, get a short 6-character code (or a link), and share it however you like via chat, SMS, or read it aloud. Recipients don't need an account on either service.
Privacy & Data Handling
Realtime Sender is built privacy-first: no account is required, and files are removed right after they're downloaded or once the share code expires. That means less data sitting on a server for less time. Dropbox Transfer ties sending to your Dropbox account and keeps the transfer available until it expires after a set period.
Neither approach is "wrong" — they're different trade-offs. If minimizing stored data and staying anonymous matters to you, the no-account, auto-delete model is a meaningful advantage. If you're curious how the two storage models compare on security, read our temporary vs cloud storage analysis.
Delivery & Tracking
Both services help you confirm a file arrived. Dropbox Transfer offers download and delivery confirmation, so you know when the recipient grabbed the file. Realtime Sender shows live transfer status over a WebSocket connection, so you can watch the transfer progress in real time as it happens. Both transfers are temporary by design and expire, though the timelines and models differ.
Where Dropbox Transfer Wins
To be fair, Dropbox Transfer has real strengths:
- Tight Dropbox integration: send straight from files you already store in Dropbox.
- Download/delivery confirmation: clear notifications when a recipient downloads.
- Familiar for Dropbox users: no new tool to learn if you're already in the ecosystem.
- Higher limits on paid plans: paid Dropbox tiers raise transfers substantially, up to 100GB.
Which Should You Choose?
Choose Realtime Sender if you need to send files larger than 100MB for free, you value privacy and auto-deletion, or you'd rather not create an account to send.
Choose Dropbox Transfer if you already use Dropbox, your files fit within your plan's limit, or you specifically want integrated delivery with download confirmation.
Try it in seconds
Realtime Sender is free with no sign-up. Send a file now — pick a file, share the 6-character code, and it's delivered instantly.
Frequently Asked Questions
What is Dropbox Transfer's free limit?
Dropbox Transfer's free (Basic) plan lets you send up to 100MB per transfer. Paid Dropbox plans allow much larger transfers, up to 100GB on higher tiers.
Do I need a Dropbox account?
Yes, you need a Dropbox account to send with Dropbox Transfer. Realtime Sender needs no account to send or receive files.
Which is better for large files for free?
Realtime Sender is better for large free transfers, at 30GB per file compared to Dropbox Transfer's 100MB free cap.
Which is more private?
Realtime Sender is more private: no account is required and files auto-delete after download or when the code expires.
When does Dropbox Transfer make sense?
Dropbox Transfer makes sense if you already use Dropbox and want integrated delivery with download confirmation.