# CL!ng

> Device performance and specification analysis tool for Metal-enabled hardware. (iPhone/iPad app by Bart Vanhaeren.)

- Source: https://appshunter.io/ios/app/clng/id1244392031 (this page in markdown: same URL + `.md`)
- Developer: [Bart Vanhaeren](https://appshunter.io/developer/1244391940)
- Category: Developer Tools, Utilities
- Price: $0.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: American English, Dutch
- Released: 2017-09-28
- Data updated: 2026-07-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/clng/id1244392031/reviews.md

## What is CL!ng?

With CL!ng, getting all the information and specs about your Metal enabled device just got a lot easier.
Browse device compute capabilities, memory specifications and even get some idea about the Metal performance of your device with build-in test routines for memory bandwidth and practical floating point performance.

Device & compute specifications

Get general information about your Metal enabled device in your iOS device. See which Metal version is implemented and supported by your device and get information about its compute capabilities such as number of compute units, clock frequency, support for double precision floating point, etc...

Memory & types specifications

The memory information overview lists specifics about the memory architecture of your Metal device, including detailed information about supported data types and object sizes.

Memory and compute performance

CL!ng uses standard Metal APIs to measure memory copy bandwidth from host-to-device, device-to-host and device-to-device.

The Metal Mandelbrot calculation routines measure floating point performance for single precision in scalar as well as vector variants.

Benchmark & Share
Run all performance and bandwidth tests and anonymously upload and share results with other CL!ng users.

Compatibility

CL!ng supports Metal compatible devices  as of macOS GPU Family 1

## Key features

- Device and compute specifications
- Memory and data type details
- Memory bandwidth testing
- Floating-point performance benchmarking
- Anonymous result sharing
- Metal API integration

## Pricing and in-app purchases

Base price: $0.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Bandwidth graph | $0.99 | one-time |


## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/clng/id1244392031/reviews.md

### 2/5 — Few details

*2025-10-09*

Very few details, need more work

### 4/5 — very good app,

*2023-03-31*

but to access history wants icloud account,
which is limiting users that dont use it. thank you.

### 5/5 — peristent and irritating

*2023-03-01*

i lied and gave 5 stars instead of 3 for the annoyance of the constsnt pop-up leave feedback menu.

### 5/5 — First rate product.

*2022-04-09*

I upgraded my older Mac with a new/used eGPU enclosure and midrange graphics card. I was easily able to confirm top scores for machine-appropriate, Metal optimized games. Cl!ng has a refined interface, and compares results to established benchmarks, as well as other users' scores. Did exactly what I wanted. Keep up the great work!

### 4/5 — I like benchmarking new computers!

*2021-05-22*

I have an Apple addiction........better than the heroin & meth I was addicted to a few years back........Fentnyl dont have nothing on the M1! M1 Junkie! Wish I could afford the iMac though OMG a blue iMac in 2021!(I want!) I'm happy to have my mini though! M1 is an M1 no matter what it looks like on the outside!

### 5/5 — ok

*2021-04-10*

Otimo!

### 1/5 — Test w/o share

*2020-09-25*

I loathe being asked to share each test

**Developer response:** Version 1.15 allows you to suppress the share message

### 3/5 — Crash

*2020-08-05, version 1.9.1*

the crash happens when “test all”, i had 2020 MacBook Pro 8th gen i5. The machine automatically restarted.

### 3/5 — Interesting

*2020-07-17*

It has a lot of benchmarks for memory, processors and graphics performance.

### 5/5 — Great

*2020-04-27, version 1.8*

Good for testing , docks , video card performance , losses , impacts.

recommended!

## Frequently asked questions about CL!ng

### What kind of devices does CL!ng support?

CL!ng supports Metal-compatible devices starting from macOS GPU Family 1. This includes Macs, iPads, and iPhones that support the Metal graphics API.

### What performance metrics can I measure with CL!ng?

You can measure memory copy bandwidth (host-to-device, device-to-host, device-to-device) and floating-point performance for single precision variants using Mandelbrot calculations.

### How does CL!ng handle user data when sharing results?

Results are uploaded and shared anonymously with other CL!ng users. No personal or identifiable information is collected or shared.

### What is the price of CL!ng?

CL!ng is a paid application priced at $0.99.

### How often is CL!ng updated?

CL!ng was last updated on November 3, 2024, indicating active development and support.

### What is the age rating for CL!ng?

CL!ng has an age rating of 4+, making it suitable for a wide range of users.

### Does CL!ng offer any free features or a trial?

CL!ng is a paid application and does not offer a free version or trial period. The purchase price is $0.99.

### Can I compare my device's performance to others?

Yes, CL!ng allows you to anonymously upload and share your performance test results, enabling comparison with other users' data.

## Version history (last 1 release)

### 1.0 — 2024-11-03

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-24.*