Help center
Questions and straight answers.
Plan differences, supported hardware, what iOS does and does not expose to apps, and where to go next — consolidated in one place.
Product
About Lirum Device Info 2
What the app does, which hardware it runs on, and how the free and premium tiers split.
What does Lirum Device Info 2 do?
Lirum Device Info 2 combines live system monitors, hands-on hardware tests, network diagnostics, an Apple device reference library, and side-by-side comparison tools in one native app. More than 50 tools cover CPU, memory, storage, battery, thermals, radios, sensors, and component checks.
Does it run natively on Mac and Apple Vision Pro?
Yes. The app runs natively on Apple Silicon Macs and on Apple Vision Pro. Tool windows are supported on iPad and Mac so you can keep several monitors open at once.
Plans & pricing
Free vs Premium
What Free includes, what one purchase adds, and where the exact boundary sits.
What is the difference between Free and Premium?
Free includes device information, live monitors, network utilities, sensor checks, and hands-on component tests. Premium adds the workflows that matter on a bench: Hardware Browser, device and benchmark comparisons, the Manual Test Wizard, Connection Rate, GPS Status, reports, and AI Assistant.
How much does Lirum Device Info 2 cost?
The download is free, and the core toolkit — device information, live monitors, network utilities, sensor checks, and component tests — costs nothing. Premium is a one-time unlock that adds 13 exclusive tools and workflows, including Hardware Browser, the comparison tools, the Manual Test Wizard, and reports. Exact pricing varies by storefront and is always shown in the App Store listing before you buy.
Compatibility
Devices, versions, and reference data
Supported platforms, minimum OS versions, and the reference data behind identification.
Which devices are supported?
One purchase covers iPhone (iOS 17.6+), iPad (iPadOS 17.6+), Mac with Apple M1 or later (macOS 14.6+), Apple Vision Pro (visionOS 26.0+), and Apple Watch as a companion app (watchOS 26.0+) with shared metrics and watch diagnostic tools.
How many Apple devices does the reference data cover?
The built-in Apple reference data covers 94 device models and 252 specification fields, so you can resolve an identifier to the exact model, chipset, and hardware configuration without a web lookup.
Data & limits
Battery data, UDID, and what iOS withholds
The honest limits: what iOS exposes to apps, what it withholds, and what changed over the years.
Can Lirum show my iPhone's battery cycle count?
Not on current iOS. Apple removed battery cycle data from the frameworks available to apps in iOS 10, and no App Store app can read a figure the operating system withholds — the number now surfaces only in the system's own analytics and diagnostics data. Lirum takes the honest route: the Battery monitor tracks live level and charging state, the Thermals tool tracks the heat that wears batteries, and Battery diagnostics import (beta) works with the battery data the OS does expose.
What happened to the UDID display in Lirum Device Info?
It did, years ago. The UDID is a 40-character hexadecimal identifier unique to every iOS device, and any app could once read it. Because it enabled cross-app tracking, Apple stopped accepting apps that access the UDID on May 1, 2013, and Lirum removed the field in the same year. Modern iOS offers per-app identifiers instead, and the device details Lirum shows today are the identifiers the OS still exposes, such as the hardware model identifier.
What is the minimum iOS version for Lirum Device Info 2?
Yes — on iPhone it needs iOS 17.6 or later. The same purchase also covers iPad (iPadOS 17.6+), Mac with an Apple M1 chip or later (macOS 14.6+), Apple Vision Pro (visionOS 26.0+), and an Apple Watch companion app (watchOS 26.0+) with shared metrics and watch diagnostic tools.
Support
Documentation & support
Documentation, bug reports, and getting in touch with the team.
Where is the documentation?
The full documentation covers every tool, supported identifiers, and workflow examples for intake, trade-ins, and repair.
How do I report a bug or request a feature?
Send bug reports, feature requests, and support questions through the contact page. Include the device model and OS version when you can — it speeds up every reply.