# Zen Disk > Test internal, SD card, and USB storage read and write speeds. Canonical page: [https://chrome-stats.com/d/app.zendisk](https://chrome-stats.com/d/app.zendisk) ## Overview - **ID:** `app.zendisk` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** ZR Tech - **Category:** TOOLS - **Downloads:** 11 - **Version:** 0.1.0 - **Last updated:** 2026-08-12 - **First published:** 2026-08-12 - **Publisher country:** ID - **Size:** 1.77 MB - **Data as of:** 2026-09-15 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=app.zendisk) - **Privacy policy:** [https://zen-disk.pages.dev/privacy-policy](https://zen-disk.pages.dev/privacy-policy) ## Description Zen Disk is a clean, focused storage speed test for Android. Connect a drive, pick a location, press GO, and read clear write and read speeds in MB/s — with the context you need to trust each result.

WHY ZEN DISK
Find out whether a card, stick, or external drive is fast enough for the way you use it — before you rely on it for photos, video, backups, or everyday transfers.

WHAT IT TESTS
• Sequential write and read speed in MB/s
• The app's internal storage location, or a folder you choose on shared internal storage, an SD card, a microSD card, or a USB/OTG drive
• A live speed gauge, progress, and throughput charts as the test runs

HOW IT WORKS
• Zen Disk checks a location before it measures it, and a test starts only after you press GO.
• Each workload is sized automatically based on available space and observed speed.
• Tests use isolated temporary files that never overwrite your existing data.
• Fixed free-space headroom is kept so a run does not fill your storage.
• When a test ends, Zen Disk removes its temporary data; if storage was disconnected first, it retries cleanup when that same location returns.

UNDERSTAND EVERY RESULT
• Review up to 50 of your most recent completed tests in the on-device History.
• Each result carries the workload and timing details needed to interpret and reproduce it.

RESULTS & PRIVACY
Speeds reflect transfers through Android's Storage Access Framework, not raw block-device performance, and can vary with the device, drive, cable, adapter, filesystem, temperature, free space, and background activity.

Zen Disk has no accounts, no advertisements, no analytics, and no developer-operated data collection. Benchmark history and selected-location details stay on your device, subject to Android's backup settings. ## Rankings - #2,782,928 — Overall ## Permissions and access ### Permissions - `app.zendisk.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.android.vending.CHECK_LICENSE` ## Similar extensions and apps - [Jazz Disk Bench - Disk Speed](https://chrome-stats.com/d/com.changguangyu.jazzdiskbench) — 9,603 users, 5.00 / 5 - [Disk Speed Test](https://chrome-stats.com/d/com.oz.diskspeed) — 64,194 users, 2.90 / 5 - [SD Card Test](https://chrome-stats.com/d/com.pzolee.sdcardtester) — 1,947,590 users, 3.93 / 5 - [DiskMarkPro](https://chrome-stats.com/d/com.wops.diskmarkpro) — 9 users - [Storage Suite: Manage, Analyze](https://chrome-stats.com/d/com.jar.incorporated.storagesuite) — 114 users - [CPDT Benchmark〉Storage, memory](https://chrome-stats.com/d/com.Saplin.CPDT) — 547,594 users, 4.34 / 5 - [SSDspeed](https://chrome-stats.com/d/com.aetiussoftware.ssdspeed) — 40 users - [Storage Analyzer & Disk Usage](https://chrome-stats.com/d/com.mobile_infographics_tools.mydrive) — 15,047,807 users, 4.25 / 5 - [True SD Card Capacity & Speed](https://chrome-stats.com/d/alan.sdcardsize.free) — 417,192 users, 4.73 / 5 - [Disk & Storage Analyzer \[PRO\]](https://chrome-stats.com/d/com.mobile_infographics_tools.mydrive_ext) — 41,223 users, 4.15 / 5 - [SD Card Test Pro - Fake Check](https://chrome-stats.com/d/com.pzolee.sdcardtesterpro) — 15,282 users, 4.50 / 5 - [Storage Space Manager](https://chrome-stats.com/d/com.appsyoulike.storagespacemanager) — 31 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/app.zendisk)