Compare software

InboxPager vs Simple Email: catalog facts
InboxPager	Simple Email
Free Free and open source under GPL-3.0.	Free Free software under the GPL-3.0 license.
Android	Android
Supports IMAP, POP and SMTP over SSL/TLS Handles attachments and unread-message tracking	Unified inbox for multiple accounts Offline storage and operations
Requires an email server that supports SSL/TLS.	Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-only
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.