JankMark v0.2.1-beta

A zero-overlay Android performance profiler — read live FPS, frame-time, and
hardware telemetry from your phone over ADB on a clean PC dashboard.

Beta: stable for everyday use, but still gathering feedback. Please file
anything odd under Issues (logs are at Help ▸ Open Log Folder).

✨ Highlights

Find your game fast — type-to-search the app list, or hit Detect to
auto-select whatever's currently open on your phone.
GPU usage on more devices — reads GPU usage without root on more phones;
where a device blocks a stat, the chart now explains why instead of going blank.
Per-sensor temperatures — separate CPU / GPU / battery lines; click the °C
gauge to cycle Max → CPU → GPU → Battery, and hovering names each line.
Frame time that matches what you see — real on-screen frame interval
(120 FPS ≈ 8.3 ms, 60 FPS ≈ 16.7 ms) with an Even / Fractional / Uneven
cadence indicator, and a built-in "?" explaining why a phone's frame time
naturally steps up and down (it's vsync, not stutter).
Readable charts — auto-scaling that ignores one-off spikes, plus pan +
zoom on the report timeline so long sessions stay legible.
Power, battery, voltage & current live charts, a session library
(auto-saved, reopenable with full charts), PNG report export, and a
"?" badge on every metric explaining what it means.

See the full CHANGELOG for everything new since 0.2.0-beta.

Download JankMark_Setup_v0.2.1-beta.exe below.
Windows SmartScreen may warn because the build isn't code-signed yet — click
More info → Run anyway. (Signing is on the roadmap.)
Run it. ADB is bundled — no separate setup. On your phone, enable
Developer Options → USB debugging, connect over USB, and accept the
authorization prompt.

Requirements: Windows 10/11 · a USB cable · an Android device with USB debugging.

GPU usage is unavailable on some chipsets (e.g. Mali / Pixel) due to vendor
policy — GPU clock speed still reads, and the app shows a short note explaining
the gap.
Connect over USB first. Wi-Fi works once paired, but full Wi-Fi pairing for
Android 13+ is still being finished — USB is the reliable path for now.
FPS may not resume after backgrounding the game. If you send the game to the
background mid-session and return, the FPS meter can stay paused until you stop and
restart the session. Known issue, fix coming in v0.2.2.

This release was shaped almost entirely by beta-tester reports — thank you. Found a
bug or want a feature? Open an Issue.