Delta (emulator)

Last updated

Delta
Original author(s) Riley Testut
Developer(s) Riley Testut et al.
Initial releaseSeptember 28, 2019;5 years ago (2019-09-28) (AltStore) [1]
April 17, 2024;8 months ago (2024-04-17) (App Store) [2] [3]
Repository github.com/rileytestut/Delta
Written in Swift
Operating system iOS
iPadOS
Platform iPhone
iPad
Predecessor GBA4iOS
Type Video game console emulator
License GNU Affero General Public License 3.0
Website deltaemulator.com

Delta is a video game console emulator created by Riley Testut for iOS and iPadOS. It supports games for the Super Nintendo Entertainment System, Nintendo Entertainment System, Nintendo 64, Nintendo DS, Game Boy, Game Boy Color,and Game Boy Advance. A paid version of the emulator also supports Sega Genesis games. Development of Delta started prior to Testut entering university, with it being a successor to the earlier GBA4iOS application. Prior to the application's release on the App Store, iOS users had to download Delta via AltStore, Testut's app store for the iOS and iPadOS operating systems. Upon release onto the App Store in April 2024, the app reached the top of the App Store rankings for about two weeks.

Contents

Background

Riley Testut started developing GBA4iOS, the predecessor of Delta, during his senior year at Richardson High School along with his friend Paul Thorsen. [4] [5] It was a emulator of the Game Boy Advance for the iPhone. iOS users had to sideload the emulator via a loophole called the "Date Trick", where the app is allowed to be downloaded and installed via the Safari browser, without needing to jailbreak (i.e. using exploits to bypass software restrictions) the device. [6]

On October 8, 2014, the exploit was patched in the iOS 8.1 update, thus ending the lifespan of the software. The source code for the app is currently hosted on Bitbucket. [7] [6]

Development and release

Development of Delta started prior to Testut entering the University of Southern California. [8] He released the emulator in 2019 alongside the AltStore app marketplace for iOS and iPadOS. [9] Testut claimed that he developed the application because he wanted to publish the emulator. [8] AltStore serves as an alternative to jailbreaking. [3]

Before Delta was released on Apple's App Store in 2024, the only way to install it was through AltStore. [2] Apple did not allow software emulators in their App Store. In 2024, due to pressure from the EU Digital Markets Act, Apple changed their rules to allow emulators. [10] After the change, a copycat emulator called iGBA (a fork of GBA4iOS) was released to the App Store. Apple took down iGBA shortly after it was released. [11] Testut described iGBA as a "knock-off" of the Delta emulator. He also stated that he had not given permission to the developer of iGBA to publish the application. [12]

Delta was officially released on the App Store on April 17, 2024. It reached the top of the digital marketplace's charts almost immediately following release. [13] [3] This would be short-lived, however, as the Krispy Kreme app surpassed Delta just two weeks later after they announced that they would give twelve donuts for free for people who downloaded the app in the USA. [14]

In mid-2024, the emulator changed its logo after Adobe threatened Testut with legal action due to its original logo sharing an almost identical similarity. [15]

Supported consoles

Delta can emulate the consoles listed below: [16] [17] [2] [18]

ConsoleEmulator used
Nintendo Entertainment System Nestopia
Super Nintendo Entertainment System Snes9x
Nintendo 64 Mupen64Plus
Game Boy / Color Gambatte
Game Boy Advance VisualBoyAdvance
Nintendo DS MelonDS
Sega Genesis Genesis Plus GX

Related Research Articles

<span class="mw-page-title-main">Mobile game</span> Video game played on a mobile device

A mobile game is a video game that is typically played on a mobile phone. The term also refers to all games that are played on any portable device, including from mobile phone, tablet, PDA to handheld game console, portable media player or graphing calculator, with and without network availability. The earliest known game on a mobile phone was a Tetris variant on the Hagenuk MT-2000 device from 1994.

<span class="mw-page-title-main">Dolphin (emulator)</span> Nintendo GameCube and Wii emulation software

Dolphin is a free and open-source video game console emulator of GameCube and Wii that runs on Windows, Linux, macOS, Android, Xbox One, Xbox Series X and Series S.

<span class="mw-page-title-main">Nintendo European Research & Development</span> French subsidiary for Nintendo

Nintendo European Research & Development (NERD) is a French subsidiary for Nintendo, located in Paris, which develops software technologies and middleware for Nintendo platforms. This includes retro console emulators, patented video codecs, and digital rights management technology.

iPod Touch Series of mobile devices by Apple (2007–2022)

The iPod Touch is a discontinued line of iOS-based mobile devices designed and formerly marketed by Apple Inc. with a touchscreen-controlled user interface. As with other iPod models, the iPod Touch can be used as a portable media player and a handheld gaming device, but can also be used as a digital camera, a web browser, for email and messaging. It is nearly identical in design to the iPhone, and can run most iPhone third-party apps from the App Store, but it connects to the Internet only through Wi-Fi and uses no cellular network data, as it lacks a cellular modem.

iOS Mobile operating system by Apple

iOS is a mobile operating system developed by Apple exclusively for its mobile devices. It was unveiled in January 2007 for the first-generation iPhone, which launched in June 2007. Major versions of iOS are released annually; the current stable version, iOS 18, was released to the public on September 16, 2024.

<span class="mw-page-title-main">App Store (Apple)</span> Mobile app distribution platform by Apple

The App Store is an app marketplace developed and maintained by Apple, for mobile apps on its iOS and iPadOS operating systems. The store allows users to browse and download approved apps developed within Apple's iOS SDK. Apps can be downloaded on the iPhone, iPod Touch, or iPad, and some can be transferred to the Apple Watch smartwatch or 4th-generation or newer Apple TVs as extensions of iPhone apps.

iOS jailbreaking is the use of a privilege escalation exploit to remove software restrictions imposed by Apple on devices running iOS and iOS-based operating systems. It is typically done through a series of kernel patches. A jailbroken device typically permits root access within the operating system and provides the right to install software unavailable through the App Store. Different devices and versions are exploited with a variety of tools. Apple views jailbreaking as a violation of the end-user license agreement and strongly cautions device owners not to try to achieve root access through the exploitation of vulnerabilities.

Submissions for mobile apps for iOS are subject to approval by Apple's App Review team, as outlined in the SDK agreement, for basic reliability testing and other analysis, before being published on the App Store. Applications may still be distributed ad hoc if they are rejected, by the author manually submitting a request to Apple to license the application to individual iPhones, although Apple may withdraw the ability for authors to do this at a later date.

iMessage Instant messaging service by Apple

iMessage is an instant messaging service developed by Apple Inc. and launched in 2011. iMessage functions exclusively on Apple platforms – including iOS, iPadOS, macOS, watchOS, and visionOS – as part of Apple's approach to inter-device integration, which has been described by media outlets as a means of achieving vendor lock-in. iMessage is accessed and used using the Messages app client.

iOS 6 2012 mobile operating system

iOS 6 is the sixth major release of the iOS mobile operating system developed by Apple Inc, being the successor to iOS 5. It was announced at the company's Worldwide Developers Conference on June 11, 2012, and was released on September 19, 2012. It was succeeded by iOS 7 on September 18, 2013.

<span class="mw-page-title-main">PPSSPP</span> PSP emulator

PPSSPP is a free and open-source PSP emulator for Windows, macOS, Linux, iOS, Android, Nintendo Wii U, Nintendo Switch, BlackBerry 10, MeeGo, Pandora, Xbox Series X/S and Symbian with a focus on speed and portability. It was released to the public on November 1, 2012, licensed under the GNU GPLv2 or later. The PPSSPP project was created by Henrik Rydgård, one of the co-founders of the Dolphin emulator.

<span class="mw-page-title-main">TestFlight</span> iOS app developer tool

TestFlight is an online service for over-the-air installation and testing of mobile applications, currently owned by Apple Inc. and only offered to developers within the iOS Developer Program. Developers sign up with the service to distribute applications to internal or external beta testers, who can subsequently send feedback about the application to developers. The TestFlight SDK additionally allows developers to receive remote logs, crash reports and tester feedback.

tvOS Operating system for the Apple TV

tvOS is an operating system developed by Apple Inc. for the Apple TV, a digital media player. In the first-generation Apple TV, Apple TV Software was based on Mac OS X. Starting with the second generation, the software is based on the iOS operating system and has many similar frameworks, technologies, and concepts.

<span class="mw-page-title-main">Sega Forever</span> Video game service by Sega

Sega Forever was a service from the Japanese video game developer Sega for re-releasing past games from the company on modern platforms. The service was launched for Android and iOS devices on June 22, 2017. By 2020, the service included over 30 games. In September of 2023 Sega quietly discontinued services by de-listing applications and leaving their social media pages inactive.

Apple Arcade is a video game subscription service offered by Apple. It is available through a dedicated tab of the App Store on devices running iOS 13, visionOS, tvOS 13, iPadOS 13, and macOS Catalina or later. The service launched on September 19, 2019.

<span class="mw-page-title-main">History of mobile games</span>

The popularisation of mobile games began as early as 1997 with the introduction of Snake preloaded on Nokia feature phones, demonstrating the practicality of games on these devices. Several mobile device manufacturers included preloaded games in the wake of Snake's success. In 1999, the introduction of the i-mode service in Japan allowed a wide variety of more advanced mobile games to be downloaded onto smartphones, though the service was largely limited to Japan. By the early 2000s, the technical specifications of Western handsets had also matured to the point where downloadable applications could be supported, but mainstream adoption continued to be hampered by market fragmentation between different devices, operating environments, and distributors.

<i>Epic Games v. Apple</i> 2020 U.S. lawsuit

Epic Games, Inc. v. Apple Inc. was a lawsuit brought by Epic Games against Apple in August 2020 in the United States District Court for the Northern District of California, related to Apple's practices in the iOS App Store. Epic Games specifically had challenged Apple's restrictions on apps from having other in-app purchasing methods outside of the one offered by the App Store. Epic Games's founder Tim Sweeney had previously challenged the 30% revenue cut that Apple takes on each purchase made in the App Store, and with their game Fortnite, wanted to either bypass Apple or have Apple take less of a cut. Epic implemented changes in Fortnite intentionally on August 13, 2020, to bypass the App Store payment system, prompting Apple to block the game from the App Store and leading to Epic filing its lawsuit. Apple filed a countersuit, asserting Epic purposely breached its terms of contract with Apple to goad it into action, and defended itself from Epic's suit.

<span class="mw-page-title-main">AltStore</span> App store for unavailable apps

AltStore is an alternative app store for the iOS and iPadOS mobile operating systems, which allows users to download applications that are not available on the App Store, most commonly tweaked apps, jailbreak apps, and apps including paid apps on the app store. It was publicly announced on September 25, 2019, and launched on September 28.

References

  1. Statt, Nick (September 25, 2019). "AltStore is an alternative iOS App Store with a built-in Nintendo emulator". The Verge. Archived from the original on April 21, 2024. Retrieved April 21, 2024. Testut released AltStore earlier today in an early preview form. The full application launches on Saturday, September 28th, with Testut's full Delta emulator as one of the available apps within the store.
  2. 1 2 3 Orland, Kyle (April 18, 2024). "Delta takes flight: Apple-approved Nintendo emulator is a great iOS option". Ars Technica. Archived from the original on April 21, 2024. Retrieved April 21, 2024.
  3. 1 2 3 Davis, Wes (April 17, 2024). "The free Delta game emulator for iPhones is live on Apple's App Store". The Verge. Archived from the original on April 17, 2024. Retrieved April 17, 2024.
  4. Knight, Shawn (April 18, 2024). "Nintendo emulator Delta lands on the Apple App Store, now the top free app". TechSpot. Archived from the original on April 21, 2024. Retrieved April 21, 2024.
  5. Hodapp, Eli (February 25, 2014). "Secret Deals, Pizza Parties and Countdowns: The Story of Riley Testut's GBA4iOS". TouchArcade . Archived from the original on April 21, 2024. Retrieved April 21, 2024.
  6. 1 2 Orland, Kyle (October 8, 2014). "iOS 8.1 plugs security hole that made it easy to install emulators". Ars Technica . Archived from the original on April 21, 2024. Retrieved April 21, 2024.
  7. Testut, Riley (October 8, 2014). "GBA4iOS is Dead. Long Live GBA4iOS". Riley Testut. Archived from the original on April 21, 2024. Retrieved April 21, 2024.
  8. 1 2 Statt, Nick (October 4, 2019). "How an iOS developer built an alternative App Store for the iPhone". The Verge. Archived from the original on April 19, 2024. Retrieved April 21, 2024.
  9. Newman, Jared (May 6, 2022). "How AltStore is building a haven for forbidden iPhone apps". Fast Company . Archived from the original on April 17, 2024. Retrieved April 21, 2024.
  10. Booth, Callum (April 3, 2024). "A first look at Europe's alternative iPhone app stores". The Verge. Archived from the original on April 28, 2024. Retrieved April 29, 2024.
  11. Davis, Wes (April 14, 2024). "The first Apple-approved emulator for the iPhone has arrived... and been pulled". The Verge. Archived from the original on April 28, 2024. Retrieved April 29, 2024.
  12. Jeffrey, Cal (April 15, 2024). "Apple cans knockoff Game Boy app as emulators suffer first App Store casualty". TechSpot. Archived from the original on April 21, 2024. Retrieved April 21, 2024.
  13. Chapple, Craig (April 19, 2024). "Delta game emulator hits No. 1 on the App Store download charts in 35 countries". Pocket Gamer . Archived from the original on May 19, 2024. Retrieved May 19, 2024.
  14. https://kotaku.com/delta-iphone-app-store-nintendo-snes-n64-emulator-roms-1851475693
  15. Hollister, Sean (May 17, 2024). "The Delta Emulator is changing its logo after Adobe threatened it". The Verge. Archived from the original on May 18, 2024. Retrieved May 18, 2024.
  16. "GitHub-rileytestut/Delta". Github. Archived from the original on April 20, 2024. Retrieved May 17, 2024.
  17. Bhatia, Anuj (April 22, 2024). "What is Delta and why is the retro game emulator app on the iPhone so popular?". The Indian Express. Archived from the original on May 29, 2024. Retrieved May 19, 2024.
  18. Farokhmanesh, Megan (April 17, 2024). "Delta Is an iOS Game Boy Emulator That (Likely) Won't Get Taken Down". Wired . Archived from the original on May 19, 2024. Retrieved May 19, 2024.