Microsoft Teams has racked up roughly 90 million installs across iOS and Android in 2025 so far, making it the most downloaded Microsoft-published mobile app of the year. The figure, reported by Eastleigh Voice and drawn from AppMagic’s analytics, cements Teams not merely as a remote-work holdover but as the always-on front door to the modern digital workplace.
The numbers behind the milestone
Eastleigh Voice’s analysis of AppMagic data shows Microsoft Teams hitting approximately 90 million downloads across the Apple App Store and Google Play between January and the time of reporting in 2025. That puts Teams ahead of other Microsoft heavyweights like Outlook, Word, and even the company’s AI companion Copilot. For context, Microsoft’s own announcements earlier in 2025 pegged Teams monthly active users at over 300 million, but mobile installs tell a different story: growth is now coming from the pocket, not the desktop.
Digging deeper, the data reveals a steady climb rather than a sudden spike. Teams has maintained a consistent weekly download cadence in the millions, signaling everyday reliance rather than a one-time pandemic bump. The breakdown between iOS and Google Play isn’t public from this dataset, but industry averages suggest a roughly 60/40 split in favor of Android given its global market share. However, Microsoft’s enterprise skew may tilt the balance toward iOS in regions like North America.
What it means for you
The 90-million-download milestone isn’t just a vanity metric. It signals a permanent shift in how people expect to work—across every device, location, and moment. Here’s what it means depending on who you are.
For everyday users
If you’ve been using Teams primarily on a PC, the mobile download surge means you can now leave your laptop behind without losing context. Microsoft has quietly made the mobile app a full-fledged client: you can join meetings with a single tap, co-author documents, catch up on channels via threaded conversations, and even use Copilot to summarize long chats while you’re on the go. The 2025 updates have also improved offline resilience—draft a message on the subway, and it sends the moment you reconnect.
For power users and frontline workers
Mobile Teams has become the primary interface for millions of frontline staff in retail, healthcare, and manufacturing. Walkie-talkie functionality, shift scheduling, and task management are now baked into the app. If you manage shifts or coordinate field teams, the download numbers mean your colleagues already have the tool—no need to ask them to install it. The learning curve is shrinking because people are adopting it on their own.
For IT administrators
A 90-million-install footprint means the “bring your own device” (BYOD) genie is out of the bottle. Even if you haven’t formally signed off on mobile Teams, a significant chunk of your workforce likely uses it. This raises immediate concerns around data governance, compliance, and security. Microsoft has beefed up mobile app protection policies in Intune, allowing you to require a managed PIN, block copy-paste to unmanaged apps, or remotely wipe corporate data without touching personal photos. If you haven’t revisited your conditional access policies lately, this download figure is your cue.
How Teams got here
Teams’ mobile ascent didn’t happen overnight. To understand the 2025 milestone, we need to rewind.
2017–2019: A slow start
When Microsoft launched Teams in 2017, it was a desktop-focused Slack competitor. The mobile apps existed, but they were clunky, battery-hungry, and seen as a complement, not a primary client.
2020–2021: The pandemic jolt
Remote work forced Teams into every device in the household. Usage exploded from 20 million daily active users in late 2019 to 145 million by April 2021. Mobile downloads spiked as workers scrambled to stay connected during lockdowns. Microsoft rebuilt the mobile app from the ground up in late 2021, dramatically improving performance and battery life.
2022–2024: The platform play
Post-pandemic, Microsoft bet big on Teams as a platform, not just a meeting tool. Integrations with Power Apps, third-party line-of-business tools, and Viva modules turned the mobile app into a Swiss army knife. By late 2024, Apple and Google both featured Teams in their “essentials” app collections for business users.
2025: The always-on workplace
The 90-million download figure is a product of these years of investment. Hybrid work is now the norm. The mobile client is no longer a fallback; for many, it’s the first screen they check in the morning. Microsoft’s AI push with Copilot embedded in Teams chat and channels has also driven a fresh wave of installs—users want to query their work data while commuting or between meetings.
What to do now
Whether you’re a solo professional, a team lead, or an IT decision-maker, the mobile takeover calls for action.
For individuals: set up mobile the right way
1. Synchronize your notification strategy: Nothing kills productivity faster than a phone buzzing with every Teams mention. On iOS, go to Settings → Notifications → Teams and customize alert styles. On Android, use notification channels to silence low-priority channels.
2. Enable mobile-specific features: Turn on Copilot on mobile (tap your profile picture → Copilot settings) to get chat summaries while you’re away from your desk. Activate offline mode so you can compose messages without a connection.
3. Secure your account: With great mobility comes great risk. Enable biometric lock (face or fingerprint) inside Teams: Settings → Security → App Lock.
For teams and managers: rewrite the workplace playbook
- Assume everyone has access: Stop scheduling meetings with a “desktop required” mindset. Mobile-first meeting design—clear agendas, short segments, screen-sharing that works on a phone—improves inclusion.
- Leverage shifting culture: The 90 million installs aren’t just about work. Families use Teams to coordinate care, community groups run projects on it. Encourage your team to share best practices across those contexts.
For IT administrators: lock down without slowing down
- Audit unmanaged device access: In the Microsoft 365 admin center, navigate to Reports → Device usage to see how many mobile clients are connecting. Compare with Intune enrollment to spot shadow IT gaps.
- Deploy app protection policies now: Even without full mobile device management (MDM), you can enforce a “managed app” layer. Require a PIN to open Teams, block saving corporate files to personal cloud storage, and set a time-based session expiration.
- Revisit data loss prevention (DLP) rules: Mobile usage amplifies the risk of sensitive content leaking via personal email or messaging apps. Update DLP policies to include Teams mobile, and test with a pilot group before rolling out.
- Prepare for the next wave: Microsoft’s roadmap hints at tighter integration with Apple CarPlay and Android Auto, plus a lightweight “Teams Essentials” mode for lower-end devices. If your fleet includes frontline or deskless workers, start planning hardware and licensing now.
A note on privacy and performance
The AppMagic ranking counts new installs, not active users logging in daily. That means some of the 90 million may represent upgrades, device swaps, or even duplicate installations. But the sheer volume still dwarfs any other Microsoft mobile app. Also, keep in mind that pre-installed carrier agreements—while not common for Teams—could inflate numbers slightly. Even with those caveats, the trend is unmistakable.
Looking ahead
Teams’ mobile lead won’t shrink. With Windows 11’s Phone Link bridging Android and desktop more deeply, and Apple’s tighter continuity features, the line between mobile and PC collaboration will blur further. Expect Microsoft to push more AI features to mobile first—Copilot querying your calendar as you walk into a meeting, for instance. For rivals like Zoom and Google Workspace, the 90-million-download bar raises the stakes: to compete, they must deliver an equally seamless, secure mobile experience that integrates with the broader office suite. For users, the message is clear: the office is no longer a place. It’s in your pocket.