What I learned rebuilding a macOS gaming diagnostics app in Swift

Victor Brandão — Fri, 17 Jul 2026 18:21:31 +0000

A previous version of this article described CloudBoost as open source. That is no longer accurate.

The public GitHub repository now contains releases, documentation, support information, and the project website. The application source became private after I introduced paid licensing.

With that clarified, here is what changed technically.

The original problem

Cloud gaming can feel unstable even when an average ping test looks fine.

A 20 ms average does not explain a short jump to 150 ms, Wi-Fi interference, background synchronization, thermal pressure, or a route that becomes unstable during a session.

My first versions of CloudBoost collected some of these signals, but the interface often displayed vague values such as “Check” or “Watch.” That was technically correct, but not useful enough.

Users reasonably asked:

What should I check?
What caused the spike?
Did CloudBoost actually change anything?
Is the problem my Mac, Wi-Fi, VPN, or game server?

Those questions changed the direction of the project.

Diagnostics before optimization

CloudBoost 4.2 focuses on explaining a session instead of presenting itself as a generic “game booster.”

During a session it monitors signals such as:

latency and jitter
network path changes
Wi-Fi and AWDL activity
system and thermal pressure
background traffic indicators
short instability events

The app then turns those signals into a timeline with severity, possible causes, and a suggested next test.

For example, instead of only displaying “network unstable,” it can suggest testing Ethernet, disabling a VPN temporarily, changing the streaming region, or checking applications active during the spike.

Reversible system changes

CloudBoost can apply temporary session adjustments such as refreshing DNS state, requesting AWDL protection, adjusting session policies, and reducing some avoidable background interference.

It does not silently terminate iCloud, Dropbox, Photos, or other user applications. Those are reported as possible sources, and the user decides whether to pause them.

Every supported adjustment is designed to be restored when the session ends.

What it cannot fix

CloudBoost does not:

increase remote-server performance
bypass anti-cheat systems
eliminate shader compilation stutter
install kernel extensions
guarantee higher FPS
replace Ethernet or a stable internet connection

Native-game stutter caused by shader compilation or Rosetta translation is different from network or system-pressure instability. The app now tries to make that distinction clearer.

Lessons from rebuilding the UI

The most important lesson was that a diagnostic value without context is nearly useless.

The latest interface includes:

larger display modes for external monitors
explanations for health and trend values
expandable diagnostic details
before-and-after Session Lab reports
Session Proof exports
clearer Free and PRO boundaries
English and Spanish web documentation

I also slowed down the release cycle. Earlier versions shipped too frequently, making the project feel less stable than it was. New releases now focus on grouped, measurable improvements.

Current model

Core cloud, remote-play, native Mac, and competitive profiles remain available for free.

CloudBoost PRO is a one-time $10 license that adds automation, complete timelines, advanced diagnostics, Session Lab, PRO widgets, compatibility tools, and priority support.

The current release is CloudBoost 4.2.4.

Website: https://victorbrandaao.github.io/CloudBoost/
Releases: https://github.com/victorbrandaao/CloudBoost/releases/latest
Support and feedback: https://discord.gg/kU5trxtRb

I am especially interested in feedback about the diagnostic language: which values are useful, which remain confusing, and what evidence you would want before trusting a macOS performance utility.

Disclosure: AI-assisted tools were used during parts of development and editing. The implementation decisions, testing, releases, and customer support are handled by me.