Name: Linwood Butterfly Nightly
Availability: InStock
Author: Linwood

01 / Overview

Is Linwood Butterfly Nightly safe?

Butterfly is an open-source app for people who think better with space around their ideas. Instead of writing everything from top to bottom on a fixed page, you get an endless workspace where you can place notes, sketches, diagrams, images, and documents wherever they make sense. Use it for class notes, meeting notes, research, math, worksheets, planning, whiteboarding, storyboards, product sketc…

Developer: Linwood
Category: Draw
Earliest archived version: 27 Aug 2026
License: AGPL-3.0-only (per F-Droid metadata)

02 / Release notes

Release notes from F-Droid

14 Oct 2026

2.6.1-rc.1

Add importing multiple images at once Fix saving notes opened from the file manager to their original path and preserve their location in recent files Clarify local connection directories, fix folder pickers, and prevent saving to removed connections Allow disabling documents, templates, or packs…

Full notes →

26 Sept 2026

2.6.0-rc.3

Add explicit raster bounds to offscreen canvas recordings Add more contextual help buttons Fix high-quality image exports being cropped at GPU texture limits Fix image exports reusing screen-resolution renderer caches at different quality settings Fix recent file tooltips overlapping file names and…

Full notes →

18 Sept 2026

2.6.0-rc.2

Show initial document content while PDFs load and repaint once the visible batch is ready Fix strokes disappearing during PDF rendering and stale viewport updates after navigation Fix PDF import initialization and loading dialog cleanup after preview failures Preserve shared PDFs across page…

Full notes →

03 / Package identity

Technical fingerprint

Application IDdev.linwood.butterfly.nightly

Latest APK SHA-256a181d360f9074a82039351f82e64d73ebddce4e9fa73aa5ac46de586beffa25b

Signing certificate60:A8:A0:48:EE:87:D5:E7:20:0C:43:46:27:9C:20:57:E3:AA:14:0D:A6:52:F1:E0:68:D6:46:4A:B6:B3:28:29

MIN ANDROID24TARGET36ARCHITECTUREarm64-v8a · armeabi-v7a · x86_64

04 / History

Archive history

6 versions in WIKI archive: earliest 2.6.0-beta.6 (27 Aug 2026), latest 2.6.1-rc.1 (14 Oct 2026).

No change in android.permission.* between 2.6.0-rc.3 and 2.6.1-rc.1.

05 / Version archive

Documented releases

6 TOTAL

VersionReleasedAndroidArchitecture

2.6.1-rc.114 Oct 202624+arm64-v8a, armeabi-v7a, x86_64→2.6.0-rc.326 Sept 202624+arm64-v8a, armeabi-v7a, x86_64→2.6.0-rc.218 Sept 202624+arm64-v8a, armeabi-v7a, x86_64→2.6.0-rc.115 Sept 202624+arm64-v8a, armeabi-v7a, x86_64→2.6.0-rc.011 Sept 202624+arm64-v8a, armeabi-v7a, x86_64→2.6.0-beta.627 Aug 202624+arm64-v8a, armeabi-v7a, x86_64→

06 / Safety & access

Safety verdict

Authentic — file hash matches the source indexNo ads or tracking flagged by the source

IntegritySHA-256 verified vs source

SourceOpen-source · fdroid

Permissions8 declared · 4 sensitive

Signaturepresent

Anti-featuresNo known anti-features

Sensitive accessCAMERAREAD_EXTERNAL_STORAGERECORD_AUDIOWRITE_EXTERNAL_STORAGE

Declared permissions

android.permission.ACCESS_NETWORK_STATE android.permission.ACCESS_WIFI_STATE android.permission.CAMERA android.permission.INTERNET android.permission.READ_EXTERNAL_STORAGE android.permission.RECORD_AUDIO android.permission.WRITE_EXTERNAL_STORAGE dev.linwood.butterfly.nightly.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Tracker status: Not assessed by WIKI for Android.

07 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.

RepositorySource package page↗Source codeSource repository↗