sizey.app

What It Is

Sizey is a macOS Aspect Ratio Calculator — an app for calculating width-to-height ratios. Its website copy is very clear: “You design. We’ll math.” Its core value is handing the ratio calculations in the design process over to a tool, so designers are not interrupted by math while creating. It is more of a lightweight design utility than a full design app or collaboration platform.

Core Features and Compatibility

Based on the available content, Sizey’s main function is to calculate and output aspect ratio results as accurately as possible. It is suitable for scenarios where proportional scaling needs to be preserved, such as images, videos, UI modules, and social media assets. The page mentions Copy, Share Link, and Get The App, but does not state whether it supports batch calculations, history, preset ratios, file export, or integration with tools such as Figma, Sketch, or Adobe Photoshop. In terms of compatibility, it is only clearly described as a MacOS app; there is no visible information about Windows, Web, or mobile versions.

Pricing, Licensing, and Collaboration

The official site does not disclose its pricing model, whether it is a one-time purchase or subscription, or whether it is free or includes in-app purchases. For licensing and copyright, it only shows that it was created by @merittthomas and @joubinj, with no visible software license, commercial usage terms, or privacy policy. Its collaboration capabilities also appear limited. Although the page includes copy related to sharing links, that is not enough to determine whether it supports team collaboration, multi-user projects, or cloud sync.

Pros and Cons

Its main strength is its extremely clear positioning: it solves one specific problem — aspect ratio calculation. The learning curve is low, and it can help designers save time during frequent size conversions. The copy emphasizes “Perfect aspect ratios,” suggesting that accurate calculation is its key selling point. The downside is limited transparency: pricing, support channels, export capabilities, and compatibility scope are all unclear. If users need full design workflow management, asset libraries, or team collaboration, Sizey is clearly not a like-for-like replacement for those tools.

Who It’s For and Access from China

Sizey is best suited for macOS-based visual designers, UI designers, content creators, and independent creators who need to quickly convert aspect ratios. Its accessibility from China cannot be determined from the available text, and payment methods are not disclosed. If access or payment is inconvenient, alternatives include built-in sizing features in Figma/Adobe tools, online aspect ratio calculators, or local calculator-style apps. Overall, it is a small, focused productivity tool whose value depends on how often the user handles ratio conversions.