ApplEm review

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

ApplEm is an Apple II emulator for people who want to run software across several Apple II generations in a browser or on macOS. It models the Apple IIe Enhanced, Apple II Plus, Apple IIc, and Apple IIgs. The browser version uses WebAssembly and WebGL, while a separate native macOS app uses the same core. The project is MIT-licensed, and its ROMs are included in the build, so users do not need to supply separate ROM files.

Disk support is a notable strength for users working with a range of images: ApplEm loads and writes DSK, DO, PO, and WOZ files, and IIgs 3.5-inch drives support 2MG and 400K/800K images. Autosave and five manual save-state slots per machine provide ways to preserve progress. The emulator also includes Mockingboard, serial, parallel, and mouse interface card emulation. In the browser, progressive web app installation enables offline functionality, which may suit users who want browser access without requiring a continuous connection.

ApplEm’s integrated CPU debugger, memory browser, heat map, soft-switch monitor, disk file explorer, BASIC detokenizer, and disassembler make it particularly suited to enthusiasts and developers exploring how Apple II software works. Configurable CRT effects and saveable monitor profiles add display customization. That depth may be more than someone seeking only a straightforward way to launch a disk image needs. The browser edition and macOS app offer two access routes, but users specifically seeking a native desktop app for another operating system should look elsewhere. For Apple II users who value model coverage, disk tools, and inspection features in a free emulator, ApplEm is a strong fit.

ApplEm pros and cons

• Where it wins
  • Emulates Apple IIe Enhanced, II Plus, IIc, and IIgs
  • Loads and writes DSK, DO, PO, and WOZ images; IIgs supports 2MG
  • Includes save states, debugger, and expansion card emulation
• Where it doesn't
  • Native desktop app is limited to macOS
  • Its extensive debugging tools may be unnecessary for casual play
  • The web version's offline use depends on progressive web app installation

ApplEm fact sheet, pricing and score →

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Last updated 14 Nov 2026 · How we research and update