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iDOS 3
What it is
iDOS 3 runs classic DOS games on iPhone and iPad and can also be used for word processing and casual programming. The maker describes it as based on DOSBox version 0.74-3. A PC-compatible on-screen keyboard provides layouts for different devices and orientations. Bluetooth keyboards and mice are supported on iOS 14 or later, and external Bluetooth game controllers are also supported. Its virtual gamepad offers customizable key bindings, with a D-pad that can switch to joystick mode. Audio support includes MT-32 emulation, MIDI sound fonts, and cue-sheet CD images with compressed OGG, MP3, or FLAC tracks. Version 3.3 supports speed adjustment by tapping the cycles window and a Documentation folder inside a game package. The project source is available under the GPLv2 license. iDOS 3 costs $4.99, paid once and has no free plan. It runs on iOS, iPadOS, and macOS; iPhone and iPad require version 15 or later, while Mac compatibility requires macOS 12 or later and an Apple M1 chip or later. The developer indicates that the app does not collect data, though Apple has not verified that information.
For and against
For
- Supports external Bluetooth game controllers.
- Virtual gamepad bindings can be customized.
- Supports MT-32 emulation and MIDI sound fonts.
- Open-source project released under GPLv2.
- Available on iOS, iPadOS, and macOS.
Against
- No free plan.
- iPhone and iPad require iOS or iPadOS 15 or later.
- Mac requires macOS 12 or later and an Apple M1 chip or later.
The verdict
iDOS 3 pairs DOS emulation with several keyboard, controller, and audio options. Check the platform requirements and one-time price before choosing it.
Who it suits
iDOS 3 suits people who want to run DOS-compatible games on iPhone or iPad, or use the emulator for word processing and casual programming. It also supports Mac systems meeting its stated requirements.
Plans and prices
iDOS 3
iPhone and iPad app · Requires iOS 15.0 or later
Read 7 Oct 2026 · apps.apple.com
On the record
- Audio
- The listing names MT-32 emulation, MIDI sound fonts, and cue sheet CD images with compressed OGG, MP3, or FLAC audio tracks.apps.apple.com · read 7 Oct 2026
- Emulator
- The maker describes iDOS as based on DOSBox version 0.74-3.litchie.com · read 7 Oct 2026
- External input
- The listing says Bluetooth keyboards and mice are supported on iOS 14 or later, and external Bluetooth game controllers are supported.apps.apple.com · read 7 Oct 2026
- Game controls
- Its virtual gamepad has customizable key bindings, and its D-pad can be switched to joystick mode.apps.apple.com · read 7 Oct 2026
- On-screen keyboard
- It provides a PC-compatible on-screen keyboard with layouts for different devices and orientations.apps.apple.com · read 7 Oct 2026
- Open source
- The maker links the project as open source, and its GitHub README says the source code is released under GPLv2.github.com · read 7 Oct 2026
- 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.apps.apple.com · read 7 Oct 2026
- 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.apps.apple.com · read 7 Oct 2026
- Private builds
- The maker says Patreon supporters can receive private device builds that last one year and require the device UDID.litchie.com · read 7 Oct 2026
- Purpose
- iDOS 3 runs classic DOS games on iPhone and iPad, and can also be used for word processing and casual programming.apps.apple.com · read 7 Oct 2026
- Recent features
- Version 3.3 supports adjusting speed by tapping the cycles window and supports a Documentation folder in a game package.apps.apple.com · read 7 Oct 2026
- Support
- The maker directs bug reports to the GitHub project or @litchiedev on Twitter; the App Store listing also provides [email protected] for support.litchie.com · read 7 Oct 2026
