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CLUSTER EMAIL-CLIENT-CONTACTS · 11 ENTRIES · EARLIEST ENTRY 2011-04-18

Mobile email client apps

This cluster comprises mobile email clients focused on secure access to Exchange, Outlook, Gmail, and IMAP accounts, with many targeting enterprise users through MDM and IT management. The dated history shows one product introduction per month across 2009–2025, a sparse and even distribution with no concentration. Traction leaders are Spacemail, BlackBerry Work, and Rediffmail Professional, each at an activity signal of 0 stars.

Entry timeline

ENTRY TIMELINE

OCT 2009: 1APR 2011: 1FEB 2015: 1MAR 2016: 1NOV 2016: 1OCT 2017: 1APR 2020: 1SEP 2020: 1JUL 2021: 1JAN 2022: 1NOV 2025: 1
OCT 2009NOV 2025

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 hand-coded · 9 unlabelled

Operator · 7 commercial · 2 enterprise · 2 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 11 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01Spacemail0★15 daysliveEmail client app offering secure, customizable business email with dark mode, privacy features, and cross-device sync.
  2. 02Rediffmail Professional0★1 moliveenterpriseBusiness email client that lets employees access company mail, search messages quickly, read offline, and preview office documents on mobile devices.
  3. 03Boxer - Workspace ONE0★17 dayslivecommercialEmail, calendar, and contacts app that enables professionals to manage messages with configurable gestures, quick replies, and enterprise security.
  4. 04OfficeMail Enterprise0★1 molivecommercialEmail client for Exchange and Office 365 with push sync, shared mailboxes, S/MIME, and MDM support for enterprise users.
  5. 05Ivanti Email+0★1 molivecommercialSecure enterprise email client that syncs work email, contacts, and calendar with mobile devices under IT management.
  6. 06Zero for Intune0★3 molivecommercialSecure email app for attorneys that integrates with Microsoft Intune for mobile device management and BYOD protection.
  7. 07Citrix Secure Mail0★1 molivecommercialSecure enterprise email app with multiple Exchange accounts, phishing reporting, and productivity integrations for business users.
  8. 08Airmail for Business0★24 daysliveBusiness email client for iOS supporting Exchange, Outlook, and IMAP, with on-device processing and MDM configuration.
  9. 09Re:Work MobileIron0★3 yrabandonedliveenterpriseSecure business email client that syncs Exchange mail, calendars, contacts, tasks, and notes for enterprise mobile device management.
  10. 10iMailG0★4 yrabandonedlivehand-codedcommercialSecure email client for iOS offering Touch ID, phishing protection, HTML signatures, and attachment handling for personal use.
  11. 11Mail+ for Outlook0★6 yrabandonedlivehand-codedcommercialMobile email client that securely accesses Outlook and Exchange accounts, managing email, calendar, and contacts on iOS devices.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.