Startup & Launch Time
Break down cold, warm, and hot starts into every phase, and surface the exact initializers slowing your first frame.
Android Performance, Solved
Make every Android app
faster, leaner, stable.
Wumi gives Android teams deep performance analysis and a lightweight, drop-in SDK — pinpointing slow startups, jank, memory leaks, and crashes, then guiding the fix.
◦ Startup & jank profiling
◦ < 60 KB SDK
◦ Real-time dashboards
What we analyze
Full-stack Android performance diagnostics
From cold start to shutdown — every metric that shapes how users experience your app, captured and made actionable.
Jank & Frame Drops
Track dropped frames, slow renders, and main-thread stalls with per-screen scores tied to the code that caused them.
Memory & Leaks
Automatic leak detection, retained-object graphs, and OOM diagnostics — catch memory growth before it hits production.
Battery & Power
Attribute wakelocks, network, and CPU burn to features, so you can cut battery drain that users notice and reviews punish.
App Size & Bloat
Analyze APK/AAB composition, unused resources, and dependency weight to ship a smaller, faster-to-install binary.
Crashes & ANRs
Symbolicated stack traces, ANR root-cause, and release health — grouped, deduplicated, and ranked by user impact.
By the numbers
Performance you can measure
0Avg. faster cold start
0Avg. crash-rate reduction
0Apps integrated
0Data points analyzed
How it works
A lightweight SDK, a powerful dashboard
Drop in one dependency. Ship it. Watch real performance data flow into a dashboard built for engineers.
Integrate in minutes
Add a < 60 KB SDK with a single Gradle dependency. No code changes, no measurable overhead in production.
Capture in the wild
Collect real-device, real-user performance signals at scale — sampled, privacy-respecting, and battery-safe.
Diagnose & fix
Real-time dashboards, regression alerts, and root-cause traces tell your team exactly what to fix next.
Trusted by Android teams
Built for apps at every scale
Northstar
Lumen
Verra
Kite
Apex Labs
Solace
About Wumi
An engineering team obsessed with Android
Wumi (Shanghai) is built by Android engineers and performance specialists. We've profiled the slow starts, chased the leaks, and shipped the fixes ourselves — and we built the tooling we always wished we had.
Every metric we surface ties back to something you can change. No vanity dashboards, just the signal that moves startup time, stability, and retention.
- Engineer-first — dashboards built by the people who read stack traces.
- Negligible overhead — a tiny SDK that stays out of your app's way.
- Privacy-respecting — sampled, aggregated, compliant by design.
- Global by default — teams and infrastructure across China and the US.
Ready to make your app faster?
Tell us about your app and we'll set up a performance review and a live demo.