No. 34 of 54 ·Multi-System Emulators

Delta

Mac · iPhone

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Freedom report

One barScore 5.3

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedThinly documented

Delta is ranked #34 of 54 in multi-system emulators on Freedom251. It runs on iOS, macOS. There is a free plan.

Delta plans and pricing

All plans

Delta Free Free app · in-app purchases apps.apple.com · 4 Oct 2026

Compared on multi-system emulators

Free plan: Yes
Open source: Yes

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The record

Product: Delta is an all-in-one emulator for iOS and iPadOS and the successor to GBA4iOS.
Game systems: The listing names support for NES, SNES, Nintendo 64, Game Boy and Game Boy Color, Game Boy Advance, and Nintendo DS.
Game files: Users import ROM files into their library, with documented formats for NES, SNES, Game Boy, Game Boy Color, Game Boy Advance, Nintendo DS, Nintendo 64, and Sega Genesis.
Save states: Delta supports manual, automatic, locked, and preview save states, and its guide recommends in-game saves as more reliable than save states.
Sync integrations: Delta Sync can sync games, save files, skins, and BIOS files through Google Drive or Dropbox.
Sync visibility: The guide says Delta files are not visible in Google Drive; files are visible in Dropbox but should not be edited because this may cause data loss.
Online play: Delta connects compatible Nintendo DS games to community-hosted Nintendo WFC servers and lets users choose a listed server or enter a custom DNS.
Controllers: Delta supports iOS-compatible controllers and keyboards, including listed Xbox, PlayStation, and Nintendo controllers, and allows button remapping.
Patreon benefits: Linking a Patreon account can provide experimental features and alternate app icons, while downloading the full beta requires AltStore PAL or AltStore Classic.
Distribution: The official guide directs users in EU countries to AltStore PAL and users outside the EU to the App Store.
Developer: The official team page identifies Riley Testut as Delta's developer and Shane Gill as responsible for operations.
Price from: Free

Where it ranks on Freedom251

Best Multi-System Emulators in 2026#34 of 54
Best Game Boy Advance Emulators in 2026#24 of 29
Best Sega Genesis Emulators in 2026#24 of 29
Best Nintendo 64 Emulators in 2026#19 of 23
Best Nintendo DS Emulators in 2026#16 of 18

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Sources

apps.apple.com/us/app/delta-game-emulator/id1048524688· checked 4 Oct 2026
faq.deltaemulator.com/getting-started/importing-games.md· checked 4 Oct 2026
faq.deltaemulator.com/using-delta/save-states.md· checked 4 Oct 2026
faq.deltaemulator.com/using-delta/delta-sync.md· checked 4 Oct 2026
faq.deltaemulator.com/using-delta/online-multiplayer.md· checked 4 Oct 2026
faq.deltaemulator.com/using-delta/controllers.md· checked 4 Oct 2026
faq.deltaemulator.com/getting-started/access-patreon-benefits· checked 4 Oct 2026
faq.deltaemulator.com/getting-started/get-delta.md· checked 4 Oct 2026
faq.deltaemulator.com/about/team· checked 4 Oct 2026