Proto.io

Proto.io App brings your Proto.io projects to life!

Proto.io · io.proto.player

1.0 out of 5 (1 rating) 100K+ downloads v2.21 11.4 MB Android 4.0+ PEGI 3 · Everyone

Download APK 11.4 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.21 (1148)
Updated: Nov 26, 2025 (10 months ago)
APK size: 11.4 MB
Requires: Android 4.0+ (API 14)
CPU support: x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit
Graphics: OpenGL ES 2.0+
Category: Productivity (app)
Listed since: Feb 18, 2021 (at least)
Permissions: 8 (2 sensitive)
Website: proto.io
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Proto.io is an app by Proto.io in the Productivity category, listed since at least February 2021. It includes native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS and MIPS 64-bit, so it runs on practically every phone.

It asks for 8 permissions, 2 of them sensitive: read shared storage and modify shared storage.

What's new in v2.21

Bug fixes

Description

From the listing uploaded by “appupdater”.

Celebrating the release of Proto.io 6 with a brand new app, re-imagined and redesigned from the ground up. While maintaining all the great features of the previous version, this new app makes it even simpler to: - Preview projects shared with you - Store and manage off-line copies of your projects - Access your projects when your data connection is unreliable New features include: - New dedicated “On this device” option replacing the old “offline mode” switch and making it much easier to access projects that have been previewed on your device. - Automatically checks if a project has been updated even for offline projects. - Visual screen browser allows you to quickly locate and switch screens while previewing your prototype. - Many more UI and overall UX enhancements

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Nov 26, 2025.
Certificate issued to “SNQ Digital” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Nov 26, 2025
Validated against Google Play Nov 26, 2025
Signed byO=SNQ Digital, C=CY
Signing certificate (SHA-1)6C:EE:83:1E:3E:4F:D3:A3:B9:14:78:B6:96:D5:0C:7C:E5:65:C5:D5
File MD57c7302fd943fc6a78fa1efdec0988fa2
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

Proto.io requests 8 permissions, 2 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Access wifi state (custom) android.permisson.ACCESS_WIFI_STATE
Full network access android.permission.INTERNET
Prevent the device from sleeping android.permission.WAKE_LOCK
Push messaging (app-defined) io.proto.player.permission.C2D_MESSAGE
Receive push notifications com.google.android.c2dm.permission.RECEIVE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Proto.io APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Proto.io APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 7c7302fd943fc6a78fa1efdec0988fa2.