Independent app studio

Sharp, private apps that do one thing well.

RandomFuse is a small studio building focused iPhone apps — no ads, no accounts, no subscriptions, nothing that leaves your device. Just tools that respect your attention.

The lineup

Two apps out. More on the bench.

Each one is single-purpose, offline-first, and built to be the best at exactly what it does.

Zero Shot X
Dry-fire training timer

A premium dry-fire practice timer for competitive shooters. Your microphone detects the trigger break — no extra hardware — with par drills, custom drill sequences, and video review.

Mic detectionDrill libraryVideo review100% offline
Visit Zero Shot X
MindBenchmark
Cognitive testing & training

Measure your mind and track it over time. A suite of fast, focused cognitive tests — reaction, memory, attention — scored so you can see where you stand and watch yourself improve.

Reaction timeMemoryFocusProgress tracking
Visit MindBenchmark

More apps in the works

We ship when it's right, not when it's due. Follow along or drop us a line.

How we build

Fewer features. Done right.

The same convictions run through everything we make.

Private by default

No accounts, no analytics, no networking. Your data stays on your phone — it's the architecture, not a policy.

Pay once, or not at all

One-time purchases where it makes sense. No subscriptions, no upsells, no dark patterns.

On-device

The work happens on your hardware. Fast, offline, and yours — no server round-trips, no cloud lock-in.

Single-purpose

Each app does one thing and does it better than the bloated alternatives. No clutter, no scope creep.

Get in touch

Building something, or want to talk?

Press, partnerships, or just to say hi — we read everything.

✉  hello@randomfuse.com