RetroArch
Delta vs RetroArch on iOS
Two very different philosophies for emulating classic games on iPhone — here's how they actually compare in daily use.
Overview
Delta and RetroArch solve the same basic problem — playing classic console games on an iPhone — from opposite directions. Delta is purpose-built for iOS with a small, curated set of Nintendo systems (GB, GBC, GBA, NDS, N64) and a touch-first interface designed around them, while RetroArch is a universal frontend originally built for desktop and consoles, ported to iOS with the same libretro core system it uses everywhere else.
That difference shows up immediately in setup. Delta walks you through adding a ROM and picking a skin in under a minute; RetroArch requires downloading and configuring separate cores per system, which unlocks far more coverage — including PS1, arcade boards, and dozens of lesser-known systems Delta doesn't touch — at the cost of a steeper first-run experience.
Distribution is another practical gap: Delta lives on the standard App Store with predictable update cycles, while RetroArch's iOS availability has been inconsistent over the years due to App Store policy friction, sometimes requiring TestFlight or sideloading instead of a normal install.
Screenshots
Library View
Core Menu
Skin Picker
Overlay Editor
Gameplay
Step-by-Step
Good to Know
If you only care about Nintendo handhelds — GBA and NDS especially — Delta's focused approach usually feels faster day to day than RetroArch's broader but heavier setup.
If you want PS1, arcade, or systems outside Nintendo's lineup, RetroArch is the only realistic option between the two, since Delta doesn't emulate those cores at all.
Nothing stops you running both — plenty of players keep Delta for Pokemon and Zelda sessions and RetroArch installed separately for everything else.
