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Folium
What it is
Folium is a paid iPhone and iPad app for emulating retro consoles and handheld systems. Its listed systems include WonderSwan, WonderSwan Color, ColecoVision, Nintendo 3DS, DS, Game Boy models, NES, SNES, Genesis, Mega Drive, and PlayStation 1. The app supports save states, cheat support, system software support, and online multiplayer through Nintendo Wi-Fi Connection support with custom servers. Update notes also describe custom artwork imports, game and system file controls, and saving support for the Grape core. Users must provide their own games and system files; Folium does not supply them. It requires iOS 16.0 or later on iPhone and iPadOS 16.0 or later on iPad. Listed controllers include Backbone One, Nintendo Switch controllers, PlayStation DualSense and DualShock 4, and Xbox Series S and X controllers. Emulation may be slow on older devices. The Folium plan costs $2.99, paid once, with an Extra Features purchase shown at $1.99.
For and against
For
- Supports many retro systems
- Save states and cheat support
- Online multiplayer with custom servers
- Broad controller support
- Custom artwork and file imports
Against
- Users must supply games and system files
- Requires iOS 16 or later
- May run slowly on older devices
- Extra Features purchase costs $1.99
The verdict
Folium offers broad retro-system emulation on iPhone and iPad, with controller support, saves, cheats, and online multiplayer. Its requirements for user-supplied files and newer Apple operating systems should be checked before purchase.
Who it suits
It suits Apple-device users who already have compatible game and system files and want multi-system retro emulation. Controller users and people seeking save states or online multiplayer may find the listed support relevant.
Plans and prices
Folium
iPhone and iPad · Requires iOS 16.0 or later / iPadOS 16.0 or later
Read 3 Oct 2026 · apps.apple.com
On the record
- Accessibility
- The listing identifies a dark interface as a supported accessibility feature.apps.apple.com · read 3 Oct 2026
- Controllers
- Listed supported controllers include Backbone One, Nintendo Switch Joy-Con and Pro Controller, PlayStation DualSense and DualShock 4, and Xbox Series S and X controllers.apps.apple.com · read 3 Oct 2026
- Device requirements
- The listing requires iOS 16.0 or later on iPhone and iPadOS 16.0 or later on iPad.apps.apple.com · read 3 Oct 2026
- Extra purchase
- The listing shows an in-app purchase named Extra Features for $1.99.apps.apple.com · read 3 Oct 2026
- Maker
- The App Store identifies Jarrod Norwell as the developer and seller.apps.apple.com · read 3 Oct 2026
- Multiplayer
- Update notes describe Nintendo Wi-Fi Connection support for online multiplayer using custom servers.apps.apple.com · read 3 Oct 2026
- Organization location
- The Folium GitHub organization profile lists Australia.github.com · read 3 Oct 2026
- Performance limitation
- The listing says emulation may be slow on older devices depending on the emulated console or handheld.apps.apple.com · read 3 Oct 2026
- Privacy
- The developer indicates that the app does not collect data; Apple says this developer-provided privacy information has not been verified by Apple.apps.apple.com · read 3 Oct 2026
- Purpose
- Folium is a multi-system emulation app for retro console and handheld gaming on Apple devices.github.com · read 3 Oct 2026
- Recent features
- The listing’s update notes describe importing custom artwork, game and system file import controls, and save-state and in-game saving support for the Grape core.apps.apple.com · read 3 Oct 2026
- Support channel
- The listing’s update notes ask users to add issues to the Folium GitHub repository.apps.apple.com · read 3 Oct 2026
- Supported systems
- The listing names WonderSwan, WonderSwan Color, ColecoVision, Nintendo 3DS, DS, Game Boy, Game Boy Advance, Game Boy Color, NES, SNES, Genesis, Mega Drive, and PlayStation 1.apps.apple.com · read 3 Oct 2026
- User supplied files
- Folium does not provide games or system files; users must provide them.apps.apple.com · read 3 Oct 2026
