Basecamp - Project Management Icon

Download Basecamp - Project Management APK 4.21.5 Universal · Android 28+

By 37signals • Updated April 26, 2026
Productivity Universal Native (Java/Kotlin) 14.10 MB
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This is the universal build of Basecamp - Project Management 4.21.5. It contains native libraries for every CPU architecture (arm64-v8a, armeabi-v7a, x86, x86_64), so it installs on any Android device. The trade-off is size — it's larger than per-architecture variants. Pick this one if you're unsure which CPU your phone has, or if you plan to share the APK with multiple devices.

File size: 14.1 MB   •   Min Android: 28   •   Target Android: 35   •   Version code: 442   •   Framework: Native (Java/Kotlin)   •   Permissions: 13

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File Information

Package Namecom.basecamp.bc3
Version Name4.21.5
Version Code442
ArchitectureUniversal
Min Android VersionAndroid 28 (API 35)
Main Activitycom.basecamp.bc4.app.main.MainActivity
FrameworkNative (Java/Kotlin)
File Size14.10 MB
Signature (SHA1)D1C60552E5E90E74054EA5B8F6B6BE4B0A547615
File Hash (SHA256)3b33d37441799c6e0aec38655a861d2869886052ad7ec7e7b965c97b5ba699b7

What's New

🔗 New attachments picker
✨ Revamped Hey! tab
🙋‍♂️ Improved person profile dialog
🔗 Link unfurling in input fields
🐛 Squashed some bugs

App Description

The refreshingly simple, and remarkably effective, project management platform.

Managing people and projects under pressure is tough enough. Unfortunately, lots of software makes it worse by over-complicating things. Basecamp’s different.

What makes Basecamp special?

It’s dialed in.

For nearly two decades, we’ve continually refined a unique set of tools and methods to fundamentally reduce complexity, and make project management more of a joy and less of a chore.

Perfected and pressure-tested by hundreds of thousands of teams on millions of projects, Basecamp’s the gold standard for a simpler, superior version of project management.

Basecamp works because

it’s the easiest place for everyone in every role

to put the stuff, work on the stuff, discuss the stuff, decide on the stuff, and deliver the stuff that makes up every project. Not on separate platforms scattered in various places, but

all intuitively organized in one centralized place

where everyone can work together.

Basecamp’s intentionally simple by design. It’s why teams that sometimes leave in search of “more power” end up slamming into the consequences of over-powered software: Complexity.

Complexity doesn’t work. Basecamp does.

It’s why those that leave end up coming back and sticking with us the second time around. You never know what you had until it’s gone.
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APK Permissions 13

  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_FINGERPRINT
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.WRITE_EXTERNAL_STORAGE
  • com.basecamp.bc3.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.google.android.c2dm.permission.RECEIVE
APK Verified

The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way.

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Frequently Asked Questions about Basecamp - Project Management APK

This is the universal variant — a single APK that contains native libraries for every CPU architecture. It installs on any Android device but is larger than per-architecture variants.

Yes — the APK's signature has been cryptographically verified against the publisher's signing key. The SHA-256 hash is shown in the File Information panel so you can independently confirm the file matches the original release.

Android 28 (API level 35) or newer. Older devices will refuse the install.

Install a free app like 'CPU-Z' or 'Droid Hardware Info' from the Play Store and look at the ABI / Instruction Set row. Most phones made after 2017 are arm64-v8a; if in doubt, download the universal variant.

All variants are functionally identical — same features, same version. They differ only in which CPU architectures the native code is compiled for, and (sometimes) which screen densities the included graphics target. Pick the one that matches your device for the smallest install size, or pick 'Universal' if you're unsure.