Sponsors
Reach people who care about their disks
SquirrelDisk is a free disk usage analyzer for macOS, Windows and Linux. Sponsors keep it free. Your banner appears inside the app, right when people are thinking about storage, backups and cleaning up.
Acme 2TB portable SSD
Your disk is almost full. 20% off with code SQUIRREL.
What your banner looks like in the app
Where the banner appears
One small, quiet banner. Text and a built-in icon only: no images, no animation, no pop-ups.
Home screen home
Under the list of disks, where every session starts.
Under the file list panel
Next to the chart, visible for the whole time people explore their disk.
Targeting
Every copy of the app downloads the same list of sponsors and picks one on the user's computer. You can target by context, by interest and by disk signals, without anyone's data ever leaving their machine.
Context
Applies to everyone.
- os
- macOS, Windows, Linux
- lang
- The system language (two-letter code), across 25 languages
Interests
Computed on the device after a scan, from folder names and sizes only. Files are never opened.
- developer · Software development
node_modules, Rust toolchains, Xcode, Docker
- creator · Photo & video
Photos libraries, Final Cut, Lightroom, DaVinci Resolve
- gamer · Gaming
Steam, Epic Games, Battle.net
- music · Music production
Logic, Ableton, GarageBand, Native Instruments
- design · Design
Figma, Sketch, Affinity, Photoshop, Blender
- cloud · Cloud storage
Dropbox, Google Drive, OneDrive, iCloud
- virtualization · Virtual machines
Parallels, UTM, VMware, VirtualBox
- ai · Local AI models
Ollama, LM Studio, Hugging Face
Disk signals
Evaluated on the device.
- disk_full_above
- The startup disk is at least this full, for example 85%. Perfect for storage and cleanup offers.
- external_drive
- An external drive is (or isn't) connected. Useful for backup products.
Interest and disk rules only apply to users who keep Personalized sponsors on (the default). Everyone else sees untargeted or context-only banners.
Privacy, in plain words
Our users trust SquirrelDisk with a map of their disk. We keep that trust, and your brand benefits from it.
- Nothing about users is ever shared with sponsors, or with us.
- Targeting happens on the user's computer. The server never receives interests, disk data, file names or any identifier.
- Reporting is aggregate only: views and clicks per ad, placement and day.
- Any segment below 50 events is hidden (k-anonymity threshold of 50).
- No cookies, no tracking pixels, no third-party scripts. Clicks go through a plain redirect that only knows the ad id.
- Users can turn off personalized sponsors or anonymous stats at any time.
Banner specs
Pick two lines of copy and one icon. That's all it takes.
- Headline
- Up to about 40 characters
- Description
- Up to about 60 characters
- Link
- The page people land on when they click
Icon, one of:
Requirements
- Clear, honest copy that says what you offer.
- A product or service that's useful to people who look after their computers.
- A secure (https) landing page that matches the banner.
- No adult content, gambling, get-rich-quick schemes, malware or misleading claims.
Let's talk
Tell us about your product and who you'd like to reach. We'll reply with availability and pricing.
adileo.barone@proxima.srl