Featured Article

10 years in the making, retro game emulator Delta is now No. 1 on the iOS charts

A small change in Apple policy realized a developer’s decade-long dream

Comment

Play Pokémon and other Game Boy games on your iPhone
Image Credits: TechCrunch

Video game emulator Delta’s decade-long struggle against the iOS App Store began with a school-issued TI-84 calculator.

When Riley Testut was a sophomore in high school, he showed his friends how to load illicit software onto their bulky graphing calculators. Such behavior was generally discouraged at school, but he wasn’t plotting to cheat on a test. He was simply traversing the Viridian Forest, surfing across the Kanto seas and collecting gym badges.

“The teachers didn’t think we were playing Pokémon,” Testut told TechCrunch. “They were just like, ‘Why is everyone so into their calculators?’”

By 2014, when Testut was a high school senior, the only way to install a retro video game emulator on an iOS device was to jailbreak it. But Testut didn’t want to damage his then-state-of-the-art iPhone 4. So, he spent months building an app that would let him play GBA games on his phone without voiding its warranty. That app became GBA4iOS.

Millions of people swarmed to GBA4iOS, reveling in the glorious experience of playing Game Boy titles on a palm-sized phone. Even Time Magazine wrote about it. But GBA4iOS was too successful for its own good and, soon, Testut had to face an adversary more formidable than Team Rocket: Eight months after the app’s release, Apple patched the loophole that made GBA4iOS possible, quashing his app in the process.

“For a brief, glorious, few months, you had experienced what it was like to make an app that was used by millions — despite it being one that by all accounts ‘shouldn’t exist,’” Testut explained in a recent blog post, reflecting on his experience over the last decade. “You knew you were living on borrowed time, but it just felt wrong that an app this popular can never exist on iOS.”

“The Pokémon broke free!”

Video game emulation is complex to pull off, but it’s simple for the users. You download an emulator — usually open source, like ePSXe for PlayStation titles, or OpenEmu, which can emulate a bunch of consoles — and then get games to play on it.

But that’s where the issue lies: Finding a software copy of games, usually housed in a .ROM file, to use with these emulators is not as easy as buying games on the Nintendo eShop. You can buy hardware to legally extract the game file from old video game cartridges or discs that you own, but an easier way to play really old games is to just download their .ROM files for free from the internet — that’s basically piracy.

Downloading an app like Delta has never been illegal, but downloading the game files you need to play can be.

Given his prior experience, Testut was shocked when Apple changed its rules around emulators a few weeks ago. He uploaded Delta, a more refined version of GBA4iOS, and suddenly, he became the developer behind the No. 1 app on the App Store. Two weeks after release, Delta is still topping the charts of entertainment apps and holds the second spot on the free apps charts. According to app intelligence company Appfigures, Delta has been downloaded about 3.8 million times in two weeks.

“It’s surreal how good the reception has been, and how many people are playing it,” he said. “This is the app I’ve been working on for 10 years.”

Testut hadn’t just been a sitting Psyduck since GBA4iOS faded away a decade ago. He went to the University of Southern California to study computer science. Soon after, he happened to attend a Super Smash Bros. players meetup, where he crossed paths with Shane Gill, an engineering student who has now been his roommate for nine years and his business partner for five. They even have the same birthday.

Of course, Gill had also used GBA4iOS in high school, and he was excited to find out that his new friend was behind the app. He shared Testut’s drive to give app developers the freedom to access an audience without Apple as a middleman.

“There are more people like Riley and just so many developers that make these really cool things,” Gill told TechCrunch. “And just because it’s an iPhone, they can’t share it the same way.”

Emboldened by his experiences as a teenage developer, Testut teamed up with Gill in 2019 and launched AltStore, an app store designed for sideloading apps onto iOS devices. For most of its existence, AltStore was only usable on Windows and MacOS, but due to changing regulations in the European Union, it now has a legitimate way to become available on iPhones, as Apple was forced to allow iOS users in the EU to download apps from outside of the App Store.

So why did Apple just change its stance on emulator apps so suddenly? Apple did not respond to TechCrunch’s request for comment. It could have something to do with increased regulatory pressure on Apple, as it was recently sued by the U.S. Department of Justice over antitrust concerns. And according to Testut, it’s a bit too convenient that just as AltStore launched on iOS in the EU, Apple made a small carve-out in its rules to allow Delta to exist.

“Even if the DOJ hadn’t started this [antitrust lawsuit], I think Apple would have done the same thing of allowing emulators in the App Store worldwide,” Testut said. “They just couldn’t have that narrative that the coolest app on iPhone is only in Europe, thanks to European regulators.”

Running an app business without a middleman

When Gill joined Testut to work on AltStore, he encouraged Testut to set up a Patreon so he could stop taking odd jobs to pay the bills. Now, AltStore’s Patreon earns over $13,000 per month (up from about $10,000 at the beginning of April). In exchange for their monthly contributions, AltStore’s patrons get access to early app betas, like Delta’s test of iPad and SEGA Genesis support, as well as access to a community Discord.

Delta is a free app, so these millions of app downloads aren’t lining the devs’ pockets. Still, Testut and Gill don’t plan to change their monetization model.

“In the App Store, you don’t get this. You don’t have this relationship with your customers. … It’s way more bureaucratic and not personal,” Testut said. “I’m very excited to show that consumers can have a close relationship with developers. I think it works better that way, because we can have Delta be completely free without any paywalls in it, and people can still get access to cool new features early by just donating to us.”

Testut’s vision is pretty emblematic of the game emulation community. At a time when it’s difficult to truly own any of the software you subscribe to, or use, no matter how much money you’ve paid over the years, the effort here isn’t just about reliving childhood gaming memories. It’s archival.

Often, the only way to preserve a 40-year-old game is to rip the software from the old cartridge and build an emulator that can run it, and that’s true for more software than just games.

“This is art that existed 40 years ago. Developers don’t own the IP anymore, and there’s no way to share it with people,” Gill said. “So unless somebody puts it out in some form, it’ll just be lost to time. That’s something that I think is a bit tragic.”

Thanks to Testut and Gill, it’s never been easier to play retro video games for people who don’t want to step beyond the bounds of what Apple deems legal on iPhones. And it’s all because the company just slightly tweaked its developer guidelines. If just one change to App Store policy can unlock a new No. 1 app, what else have we missed out on?

“This was way bigger than we could have ever hoped for, honestly,” said Testut. “Being able to put Delta in the App Store has just made our message so obvious. We’re saying, ‘Hey, we’re trying to make apps that haven’t been able to exist before,’ and then the second Apple allows it, we’re in the App Store and we’re the number one app.”

Apple will soon let users in the EU download apps through web sites, not just the App Store

More TechCrunch

After Apple loosened its App Store guidelines to permit game emulators, the retro game emulator Delta — an app 10 years in the making — hit the top of the…

Adobe comes after indie game emulator Delta for copying its logo

Meta is once again taking on its competitors by developing a feature that borrows concepts from others — in this case, BeReal and Snapchat. The company is developing a feature…

Meta’s latest experiment borrows from BeReal’s and Snapchat’s core ideas

Welcome to Startups Weekly! We’ve been drowning in AI news this week, with Google’s I/O setting the pace. And Elon Musk rages against the machine.

Startups Weekly: It’s the dawning of the age of AI — plus,  Musk is raging against the machine

IndieBio’s Bay Area incubator is about to debut its 15th cohort of biotech startups. We took special note of a few, which were making some major, bordering on ludicrous, claims…

IndieBio’s SF incubator lineup is making some wild biotech promises

YouTube TV has announced that its multiview feature for watching four streams at once is now available on Android phones and tablets. The Android launch comes two months after YouTube…

YouTube TV’s ‘multiview’ feature is now available on Android phones and tablets

Featured Article

Two Santa Cruz students uncover security bug that could let millions do their laundry for free

CSC ServiceWorks provides laundry machines to thousands of residential homes and universities, but the company ignored requests to fix a security bug.

8 hours ago
Two Santa Cruz students uncover security bug that could let millions do their laundry for free

OpenAI’s Superalignment team, responsible for developing ways to govern and steer “superintelligent” AI systems, was promised 20% of the company’s compute resources, according to a person from that team. But…

OpenAI created a team to control ‘superintelligent’ AI — then let it wither, source says

TechCrunch Disrupt 2024 is just around the corner, and the buzz is palpable. But what if we told you there’s a chance for you to not just attend, but also…

Harness the TechCrunch Effect: Host a Side Event at Disrupt 2024

Decks are all about telling a compelling story and Goodcarbon does a good job on that front. But there’s important information missing too.

Pitch Deck Teardown: Goodcarbon’s $5.5M seed deck

Slack is making it difficult for its customers if they want the company to stop using its data for model training.

Slack under attack over sneaky AI training policy

A Texas-based company that provides health insurance and benefit plans disclosed a data breach affecting almost 2.5 million people, some of whom had their Social Security number stolen. WebTPA said…

Healthcare company WebTPA discloses breach affecting 2.5 million people

Featured Article

Microsoft dodges UK antitrust scrutiny over its Mistral AI stake

Microsoft won’t be facing antitrust scrutiny in the U.K. over its recent investment into French AI startup Mistral AI.

10 hours ago
Microsoft dodges UK antitrust scrutiny over its Mistral AI stake

Ember has partnered with HSBC in the U.K. so that the bank’s business customers can access Ember’s services from their online accounts.

Embedded finance is still trendy as accounting automation startup Ember partners with HSBC UK

Kudos uses AI to figure out consumer spending habits so it can then provide more personalized financial advice, like maximizing rewards and utilizing credit effectively.

Kudos lands $10M for an AI smart wallet that picks the best credit card for purchases

The EU’s warning comes after Microsoft failed to respond to a legally binding request for information that focused on its generative AI tools.

EU warns Microsoft it could be fined billions over missing GenAI risk info

The prospects for troubled banking-as-a-service startup Synapse have gone from bad to worse this week after a United States Trustee filed an emergency motion on Wednesday.  The trustee is asking…

A US Trustee wants troubled fintech Synapse to be liquidated via Chapter 7 bankruptcy, cites ‘gross mismanagement’

U.K.-based Seraphim Space is spinning up its 13th accelerator program, with nine participating companies working on a range of tech from propulsion to in-space manufacturing and space situational awareness. The…

Seraphim’s latest space accelerator welcomes nine companies

OpenAI has reached a deal with Reddit to use the social news site’s data for training AI models. In a blog post on OpenAI’s press relations site, the company said…

OpenAI inks deal to train AI on Reddit data

X users will now be able to discover posts from new Communities that are trending directly from an Explore tab within the section.

X pushes more users to Communities

For Mark Zuckerberg’s 40th birthday, his wife got him a photoshoot. Zuckerberg gives the camera a sly smile as he sits amid a carefully crafted re-creation of his childhood bedroom.…

Mark Zuckerberg’s makeover: Midlife crisis or carefully crafted rebrand?

Strava announced a slew of features, including AI to weed out leaderboard cheats, a new ‘family’ subscription plan, dark mode and more.

Strava taps AI to weed out leaderboard cheats, unveils ‘family’ plan, dark mode and more

We all fall down sometimes. Astronauts are no exception. You need to be in peak physical condition for space travel, but bulky space suits and lower gravity levels can be…

Astronauts fall over. Robotic limbs can help them back up.

Microsoft will launch its custom Cobalt 100 chips to customers as a public preview at its Build conference next week, TechCrunch has learned. In an analyst briefing ahead of Build,…

Microsoft’s custom Cobalt chips will come to Azure next week

What a wild week for transportation news! It was a smorgasbord of news that seemed to touch every sector and theme in transportation.

Tesla keeps cutting jobs and the feds probe Waymo

Sony Music Group has sent letters to more than 700 tech companies and music streaming services to warn them not to use its music to train AI without explicit permission.…

Sony Music warns tech companies over ‘unauthorized’ use of its content to train AI

Winston Chi, Butter’s founder and CEO, told TechCrunch that “most parties, including our investors and us, are making money” from the exit.

GrubMarket buys Butter to give its food distribution tech an AI boost

The investor lawsuit is related to Bolt securing a $30 million personal loan to Ryan Breslow, which was later defaulted on.

Bolt founder Ryan Breslow wants to settle an investor lawsuit by returning $37 million worth of shares

Meta, the parent company of Facebook, launched an enterprise version of the prominent social network in 2015. It always seemed like a stretch for a company built on a consumer…

With the end of Workplace, it’s fair to wonder if Meta was ever serious about the enterprise

X, formerly Twitter, turned TweetDeck into X Pro and pushed it behind a paywall. But there is a new column-based social media tool in town, and it’s from Instagram Threads.…

Meta Threads is testing pinned columns on the web, similar to the old TweetDeck

As part of 2024’s Accessibility Awareness Day, Google is showing off some updates to Android that should be useful to folks with mobility or vision impairments. Project Gameface allows gamers…

Google expands hands-free and eyes-free interfaces on Android