Bubble
What Bubble is
Bubble is a web and iPhone email client that turns an existing Gmail mailbox into people-focused conversations. It displays real Gmail threads chronologically, collapses quoted history and signatures, and keeps the complete original message available. Before sending replies or reply-all messages, it shows the recipients. Bubble supports Gmail only; Microsoft, iCloud, Yahoo, and generic IMAP are not enabled. Gmail content is requested directly from Google’s Gmail API on the device, and Bubble says it does not copy mailbox content to a Bubble-operated server. The app uses HTTPS/TLS for Google sign-in and Gmail API requests, while iPhone credentials are stored in Apple’s device-only Keychain. Remote images, tracking pixels, scripts, forms, iframes, and active HTML are blocked by default. Bubble says it does not sell Gmail data, use it for advertising, or train AI models with it. Offline access is available, with cache and attachment limits varying by plan. Free allows one Gmail account; Bubble Plus costs $2.99 a month, and a lifetime option is listed at $49.99 a month.
Who it suits
Bubble suits Gmail users who want conversation-focused email on the web or iPhone, including offline access. It is also aimed at people who want visible recipients and restrictive message presentation.
What it does well
- Available on web and iPhone
- Chronological Gmail conversation display
- Offline access
- Shows recipients before replies
- Blocks active message content by default
What to know first
- Gmail is the only enabled provider
- Free plan allows one account
- Offline caches have size limits
- Notifications are not guaranteed real-time
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 1 Gmail account · 9 pinned people and conversations · 6 classic themes · 500 cached threads · 50 MB files | Free |
| Bubble Plus | $2.99 / month · Up to 8 Gmail accounts · 50 pinned people and conversations · private templates and signatures · expanded offline history | $2.99 a month |
| Bubble Plus Lifetime | Lifetime option · Up to 8 Gmail accounts · 50 pinned people · 50 pinned conversations | $49.99, paid once |
| Bubble Plus | $24.99/year · Up to 8 Gmail accounts · 50 pinned people and conversations · private templates and signatures · expanded offline history | $24.99 a year |
| Bubble Plus | $49.99 lifetime one-time option · Up to 8 Gmail accounts · 50 pinned people and conversations · private templates and signatures · expanded offline history | $49.99, paid once |
As bubblemails.com lists them, read 10 Oct 2026. The maker's own page has the final word.
Verdict
Bubble offers a Gmail-focused conversation view with offline support and device-side message handling. Its provider support, cache limits, and non-guaranteed notifications define the practical boundaries.
Facts from Bubble's own pages
- Account limit
- 8 · bubblemails.com, 20 Sept 2026
- Data use
- Bubble says it does not sell Gmail data, use it for advertising, or use it to train AI models. · bubblemails.com, 10 Oct 2026
- Free plan
- Yes · bubblemails.com, 20 Sept 2026
- Integrations
- Bubble currently supports Gmail; Microsoft, iCloud, Yahoo, and generic IMAP are not enabled yet. · bubblemails.com, 10 Oct 2026
- Mail routing
- Gmail content is requested directly from Google's Gmail API on the device, and Bubble says it does not copy mailbox content to a Bubble-operated server. · bubblemails.com, 10 Oct 2026
- Message cleanup
- Bubble collapses quoted history and signatures while keeping the complete original email available. · bubblemails.com, 10 Oct 2026
- Message safety
- Bubble blocks remote images, tracking pixels, scripts, forms, iframes, and active HTML in message presentation by default. · bubblemails.com, 10 Oct 2026
- Notifications
- Bubble says iPhone background refresh is best effort and neither it nor web refresh is a guaranteed real-time notification service. · bubblemails.com, 10 Oct 2026
- Offline access
- Yes · bubblemails.com, 20 Sept 2026
- Offline limits
- The iPhone cache is limited to 500 threads per account on Free and 1,500 with Plus; downloaded attachment storage is bounded to 50 MB on Free and 150 MB with Plus. · bubblemails.com, 10 Oct 2026
- Product
- Bubble is a mobile and web email client that presents an existing Gmail mailbox as people-first conversations. · bubblemails.com, 10 Oct 2026
- Reply safety
- Bubble shows visible recipients before sending a reply or reply-all. · bubblemails.com, 10 Oct 2026
- Security
- The privacy policy says Bubble uses HTTPS/TLS for Google Sign-In and Gmail API requests and stores iPhone credentials in Apple's device-only Keychain. · bubblemails.com, 10 Oct 2026
- Sending limits
- Outgoing attachments are limited to 10 files and 20 MB total. · bubblemails.com, 10 Oct 2026
- Support
- Bubble support is available by email at [email protected]. · bubblemails.com, 10 Oct 2026
- Thread display
- Bubble uses real Gmail threads and presents them as chronological conversations. · bubblemails.com, 10 Oct 2026
- Unified inbox
- No · bubblemails.com, 20 Sept 2026
- Web and mobile
- Bubble is available as a responsive web app and as an iPhone app. · bubblemails.com, 10 Oct 2026
Where Bubble stands on Freedom251
- Email clients#67 of 142