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iDOS 3

litchie.com

  • macOS
  • iPhone and iPad
6.4 Club score Visit litchie.com

What iDOS 3 is

iDOS 3 is a paid DOS emulator for iPhone and iPad that also supports word processing and casual programming. The maker bases it on DOSBox 0.74-3. It provides a PC-compatible on-screen keyboard with layouts for different devices and orientations, plus Bluetooth keyboard and mouse support on iOS 14 or later. External Bluetooth game controllers are supported, and the virtual gamepad offers customizable key bindings with a D-pad that can switch to joystick mode. Audio features include MT-32 emulation, MIDI sound fonts, and cue-sheet CD images with compressed OGG, MP3, or FLAC tracks. Version 3.3 adds speed adjustment through the cycles window and support for a Documentation folder in a game package. The source is available under GPLv2. iDOS 3 costs $4.99 once, has no free plan, and supports iOS, iPadOS, and macOS. iPhone and iPad require version 15 or later; Mac support requires macOS 12 or later with an Apple M1 chip or later.

Who it suits

iDOS 3 suits people who want to run DOS-compatible games on Apple devices, or use classic DOS software for word processing and casual programming. It also fits users who need controller, keyboard, mouse, or CD-audio support.

Good to know, and what to watch

  • Runs DOS-compatible games on Apple devices
  • Supports customizable virtual game controls
  • Accepts Bluetooth keyboards and mice
  • Includes MT-32 and MIDI audio options
  • Source is available under GPLv2
  • No free plan is listed
  • Costs $4.99 once
  • iPhone and iPad require version 15 or later
  • Mac requires an Apple M1 chip or later

Plans

Every plan and price

iDOS 3

$4.99 once

The verdict

iDOS 3 combines DOS emulation with flexible controls, audio options, and Apple-platform support. Its one-time price and stated operating-system requirements should be checked against the devices you plan to use.

What the maker publishes

Audio
The listing names MT-32 emulation, MIDI sound fonts, and cue sheet CD images with compressed OGG, MP3, or FLAC audio tracks. source
Emulator
The maker describes iDOS as based on DOSBox version 0.74-3. source
External input
The listing says Bluetooth keyboards and mice are supported on iOS 14 or later, and external Bluetooth game controllers are supported. source
Game controls
Its virtual gamepad has customizable key bindings, and its D-pad can be switched to joystick mode. source
On-screen keyboard
It provides a PC-compatible on-screen keyboard with layouts for different devices and orientations. source
Open source
The maker links the project as open source, and its GitHub README says the source code is released under GPLv2. source
Platform requirement
The App Store listing requires iOS 15 or later on iPhone and iPadOS 15 or later on iPad, and lists Mac compatibility for macOS 12 or later on an Apple M1 chip or later. source
Privacy
The App Store listing reports that the developer indicated the app does not collect data, and says that information has not been verified by Apple. source
Private builds
The maker says Patreon supporters can receive private device builds that last one year and require the device UDID. source
Purpose
iDOS 3 runs classic DOS games on iPhone and iPad, and can also be used for word processing and casual programming. source
Recent features
Version 3.3 supports adjusting speed by tapping the cycles window and supports a Documentation folder in a game package. source
Support
The maker directs bug reports to the GitHub project or @litchiedev on Twitter; the App Store listing also provides [email protected] for support. source

Checked against the maker's pages on 7 Oct 2026.