Macsus Privacy Policy
Macsus is two apps made by Farpak LLC ("we", "us"): Macsus for iPhone and Macsus for Mac. The Mac app reads your MacBook's state and the iPhone app shows it and sends the actions you choose. This policy covers both.
The short version. We don't collect your data. Macsus has no accounts, no analytics, no ads and no trackers. What your Mac reports goes only to the iPhones you've paired with it, encrypted end to end, either directly over your own network or through your own iCloud, where it's sealed so that only your devices can read it.
What the Mac app reads
To show your MacBook on your iPhone, Macsus for Mac reads, on the Mac:
- Battery, charging and power use, temperatures and fan speeds
- Processor, graphics and memory use, and the apps using the most energy
- The ports and what's plugged into them, storage, display brightness, volume and the audio output
- Sleep and lock state, the lid angle, and the Mac's tilt (the motion sensor runs only while you're looking at it on your iPhone)
- Wi-Fi network names and Bluetooth device names, so you can see and switch them
- Whether the camera or microphone is in use
- The Mac's name, your account name and picture, and your desktop picture, to draw the Mac's screen on your iPhone
None of this leaves the Mac except to iPhones you've paired. The Mac keeps 30 days of history for the charts, on the Mac only.
How it reaches your iPhone
Nearby, your iPhone connects to your Mac directly, over your local network or Apple's peer-to-peer Wi-Fi. A new iPhone can only connect after you approve it on the Mac, and every connection is encrypted end to end with keys the two devices exchanged when you paired them. With version 2.5 or later on both, each connection also uses one-time keys, so a recorded connection can't be decrypted later, even with the devices' own keys. The Mac's menu bar icon changes while any iPhone is watching, and its menu lists every paired iPhone.
Away from home, the apps pass sealed messages through your own iCloud, in Apple's CloudKit private database. Each message is encrypted on the device for the device that should read it before it's uploaded, so neither Apple nor we can read it. Apple can see that the messages exist, how big they are and when they change. They're small and count toward your iCloud storage. Removing an iPhone from your Mac deletes that iPhone's messages; you can delete all of Macsus's iCloud data from your iCloud storage settings.
Passwords and Face ID
- Wi-Fi passwords you type on your iPhone to switch the Mac's network are sent to the Mac encrypted and kept in the Mac's login Keychain.
- Unlocking your Mac from your iPhone needs your Mac login password once. You type it on the Mac, it's kept in the Mac's login Keychain, and it never leaves the Mac.
- Face ID runs on your iPhone. Macsus only learns whether it succeeded, plus a signature from the iPhone's Secure Enclave that lets the Mac check it. Your face data never leaves Apple's Secure Enclave.
Permissions, and why
- Local Network (iPhone and Mac): to find each other on your network.
- Camera (iPhone): to scan the pairing code your Mac shows. No pictures are kept.
- Location (Mac): macOS shows Wi-Fi network names only to apps with Location access. Macsus never asks where you are.
- Bluetooth (Mac): to connect and disconnect your devices when you ask.
- Accessibility (Mac): to type your password at the Lock Screen when you unlock from your iPhone.
- Administrator approval (Mac, optional): a small helper that changes Energy Mode, which macOS allows only with administrator rights.
Updates
Macsus for Mac checks farpak.com for a newer version once a day, and when you check by hand. It sends nothing about your Mac with that check. Like any visit to farpak.com, the request appears in our web host's logs (IP address, time, the app's version); we use those logs only to count downloads. The iPhone app updates through the App Store.
Crash and problem reports
When Macsus for Mac crashes, macOS writes a report on your Mac. Macsus doesn't send it anywhere. Report a Problem in the Mac app saves a folder you can choose to email us; it leaves out your Mac's identifiers and replaces device names.
On iPhone, if you've chosen to share analytics with app developers (Settings > Privacy & Security > Analytics & Improvements), or you test Macsus through TestFlight, Apple may share crash reports, usage statistics and the feedback you send with us. That's Apple's system and covered by Apple's Privacy Policy.
What we receive
From the apps themselves, nothing. We only see what you send us (email, problem reports), what Apple shares under the choices above, and our web host's logs.
Children
Macsus isn't directed at children under 13, and it doesn't collect personal information from anyone.
Changes to this policy
If Macsus starts handling data differently, this page changes first, with a new effective date.
Contact
Questions about this policy or about Macsus: hello@farpak.com