Comparison

Vulkan Capabilities Viewer 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

Vulkan Capabilities Viewer

This tool reports detailed 3D hardware capabilities for developers using Vulkan on iOS devices. It helps ensure compatibility for games and 3D applications across various iOS generations by uploading device reports to a central database.

Highlights
  • Enumerate hardware capabilities
  • Report Vulkan features
  • Upload device reports
  • Check app compatibility
  • Open source
Features
Read full description

For developers using Vulkan layered over the Metal graphics API, this tool enumerates all the hardware capabilities and limitations of the device it is run on. A report of the current device is uploaded to a central Vulkan Capabilities database at gpuinfo.org where other developers can use this information to ensure their games and 3D apps are ready for as wide a variety of iOS device generations as possible. This software is free and OpenSouce licensed and can be obtained here: https://github.com/SaschaWillems/VulkanCapsViewer

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

Vulkan Capabilities Viewer1 screens
Screen Specs4 screens

Verdict

The call

The clearest difference is in-app purchases: Vulkan Capabilities Viewer at none against Screen Specs's 3. Screen Specs's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (15.0 vs 17). On price, ads and device support 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. Screen Specs sells 3 in-app purchases, starting at $2.99 per 7 days. Vulkan Capabilities Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

Vulkan Capabilities Viewer ships an update every 2 months, Screen Specs every 5 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 6 level
Vulkan Capabilities Viewer versus Screen Specs: the parameters behind the verdict, then further details
ParameterVulkan Capabilities ViewerScreen Specs
PriceFreeFree
Rating5.0 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS1715.0 — better
Further details — not scored
Size23 MB9 MB
Age rating4+4+
DeveloperLunarG, Inc.Burak Kose

In-app purchases

None

Vulkan Capabilities Viewer

No in-app purchases

3 purchases

Screen Specs

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

Questions

Is Vulkan Capabilities Viewer free?
Vulkan Capabilities Viewer is free to download, with no in-app purchases.
Is Screen Specs free?
Screen Specs is free to download, with in-app purchases available.
Do Vulkan Capabilities Viewer or Screen Specs have ads?
Neither Vulkan Capabilities Viewer nor Screen Specs shows ads.
Which is updated more often, Vulkan Capabilities Viewer or Screen Specs?
Vulkan Capabilities Viewer ships an update every 2 months, and Screen Specs every 5 days. Most recently, Vulkan Capabilities Viewer was updated on October 24, 2026 and Screen Specs on October 13, 2026.

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