Comparison

GLview Pro vs Screen Specs

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GLview Pro

Explore detailed graphics hardware information, including OpenGL and Metal capabilities. This universal app provides comprehensive device insights and a renderer database, with an option to upgrade for ad-free experience and database contribution.

Highlights
  • Comprehensive device insights
  • Detailed OpenGL capabilities
  • Metal version and capabilities
  • Extensive renderer database
  • Interface testing for OpenGL
  • Ad-free and tracking-free experience (Pro)
Features
Read full description

Explore the graphics capabilities of your iPhone, iPad, and Mac with GLview Pro, the latest evolution of OpenGL Extensions Viewer, developed since 2005. Built with SwiftUI as a universal app, GLview Pro provides detailed information about your device, graphics APIs, and display capabilities in a clear, responsive interface. Includes support for iOS 27. KEY FEATURES Device and Display Information View device and operating-system details, memory usage, display modes, refresh rates, and HDR properties such as minimum, maximum, and full-frame luminance when reported by the display. OpenGL Capabilities Inspect supported OpenGL contexts, extensions, limits, pixel formats, and implementation details. Metal Capabilities Explore Metal device information and supported features, including Metal 3 and Metal 4, GPU families, mesh shaders, sparse textures, and MetalFX scaling capabilities. Renderer Database Browse an extensive cross-platform graphics database and learn more about renderers and extensions. Rendering Tests Run interactive OpenGL ES and Metal rendering tests to examine graphics performance and implementation behavior. Metal tests include a live performance overlay, with controls for scenes, instancing, and multisampling. PRO FEATURES Ad-Free and Tracking-Free Enjoy a streamlined and private experience without advertising or tracking. Database Submission Contribute your device information to the GLview graphics database, built from decades of graphics research across multiple operating systems. Whether you are a developer, graphics enthusiast, or simply curious about your hardware, GLview Pro gives you a detailed view of your device's graphics capabilities.

About

Screen Specs

Features
Read full description

Stop looking up pixel dimensions. 227 exact sizes — every iPhone, iPad, Watch and Mac, Instagram, YouTube, App Store screenshots, A4 at 300 DPI. All offline. WHAT'S INSIDE • Device — 95 entries, every iPhone from the original to iPhone 17, plus iPad, Apple Watch, Mac and desktop displays • Social — 44 placements across Instagram, TikTok, YouTube, X, LinkedIn, Threads, Snapchat, Discord, Twitch, Reddit, WhatsApp, Facebook and Pinterest • Ads — 22 specs, current App Store screenshot requirements plus the standard display ad units • Print — 21 stocks, ISO A and B series, US Letter through Tabloid, business cards, every one at 300 DPI • Video — 11 standards, SD through 8K and DCI cinema THE SPECS THAT MATTER Points and pixels with the scale factor. Pixel density. Aspect ratio. And safe-area insets, top and bottom — the numbers you actually need to lay out a screen, and the ones almost nobody publishes. TOOLS • Aspect ratio lock — set a ratio, change one side, the other follows • DPI calculator — real pixel density from any diagonal • Side-by-side compare — two resolutions, pixel counts, megapixels • Favorites, and your own custom sizes • Export the whole catalog as JSON or CSV BUILT TO BE FAST No account. No network. No tracking. Everything is on device, so a size is two taps away whether or not you have signal. PREMIUM The full size database, search, the calculator and export are free. Premium unlocks side-by-side compare and unlimited custom sizes. Privacy Policy: https://burakkose.me/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GLview Pro4 screens
Screen Specs4 screens

Verdict

The call

The clearest difference is update cadence: Screen Specs at every 5 days against GLview Pro's every 3 months. GLview Pro's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GLview Pro sells 1 one-off in-app purchase and Screen Specs sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

GLview Pro ships an update every 3 months, Screen Specs every 5 days. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 7 level
GLview Pro versus Screen Specs: the parameters behind the verdict, then further details
ParameterGLview ProScreen Specs
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size76 MB9 MB
Age rating4+4+
DeveloperStephane DenisBurak Kose

In-app purchases

1 purchases

GLview Pro

One-time1
  • Pro version$1.99
3 purchases

Screen Specs

Subscriptions2
  • Weekly Subscription$2.997 Days
  • Yearly Subscription$14.991 Year
One-time1
  • Lifetime Access$29.99

Questions

Is GLview Pro free?
GLview Pro is free to download, with in-app purchases available.
Is Screen Specs free?
Screen Specs is free to download, with in-app purchases available.
Do GLview Pro or Screen Specs have ads?
Neither GLview Pro nor Screen Specs shows ads.
Which is updated more often, GLview Pro or Screen Specs?
GLview Pro ships an update every 3 months, and Screen Specs every 5 days. Most recently, GLview Pro was updated on October 17, 2026 and Screen Specs on October 13, 2026.

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