DualShot Recorder, an iPhone camera app built largely with Claude by viral wildlife creator Derrick Downey Jr., hit No. 1 on the App Store's top paid list within 12 hours of its release and held the top spot for 8 days. It is still inside the top 20 at the time of reporting. Downey is not a software developer — he is the LA-based creator known online for short videos with the squirrels who visit his patio, with more than a million followers each on Instagram and TikTok.
He priced the app at a one-time $6.99 at launch and has since raised it to $9.99. There is no subscription, no user data collection, and videos stay on the device. Total build time, after the false starts, was 3 to 4 months.
The problem Downey was trying to solve is mundane and specific. He wanted to spin up a YouTube series, which meant capturing horizontal and vertical footage at the same time. The standard workarounds — multi-phone rigs, gimbals, cropping in post — either cost too much or threw away resolution, since the iPhone camera already uses a sensor crop when recording video, and a vertical crop of that crop leaves very little to work with.
Key facts
- 01DualShot Recorder reached No. 1 on the App Store's top paid apps list 12 hours after release.
- 02The app held the No. 1 spot for 8 days and remains in the top 20 at the time of reporting.
- 03Creator Derrick Downey Jr. built it in 3 to 4 months using Claude, after failed attempts with ChatGPT and Google's Antigravity.
- 04Initial price was a one-time $6.99 and is now $9.99, with no subscription and no user data collection.
- 05Downey has more than a million followers each on Instagram and TikTok for his LA squirrel videos.
Apple's camera API lets third-party developers read out the full sensor, which is the hook DualShot Recorder hangs on. The app pulls horizontal and vertical crops from the same original capture in-camera, so neither version is downsampled from a tighter frame. It also exposes granular quality and resolution controls and can record from two cameras on the same device at once.
“DualShot Recorder hit No. 1 on the App Store's paid chart within 12 hours of release and held the top spot for 8 days, built in 3 to 4 months by a non-developer using Claude.”— Jaeden Schafer
Downey first tried to vibe-code the app last year using ChatGPT and could not get it to work. He shelved the project, then came back to it earlier this year. "I went into the code and the camera activated. And I said okay, we possibly got something here," he told The Verge. He also tested Google's Antigravity, but says Claude was the tool that finally made the app possible.
He is candid about the limits of letting an LLM drive. "I understand the product that I'm trying to create, I understand the functionality and what I'm looking for, and there have been moments when the response [Claude gave] wasn't accurate," he said. "You would think that because you're giving the prompts to this machine that it would give you accurate data. But I found that not to be the case, so I would then have to correct it." His workflow ended up being prompt, audit, correct, repeat.
Submitting to Apple's App Store turned out to be the easy part. "I was like, alright, well let's just put it on there and share it," Downey said. The 12-hour run to No. 1 followed.
DualShot Recorder is one of the cleaner case studies for what people now call vibe coding — a non-engineer shipping a paid native iOS app that climbs the charts. Downey did the product thinking himself: he understood the camera-rig problem from years of filming, he knew the iPhone sensor behavior mattered, and he knew which API surface to point Claude at. The model wrote a lot of the code; he supplied the judgment.
There are real limits showing up already. Because the app collects no user data, Downey says it has been harder to track down and fix bugs in the wild, and he is working on an in-app error reporting feature so users can send him crash details. A solo operator with a hit app, no analytics, and a model that occasionally hallucinates is a fragile configuration, and the next version is where the cracks usually show.
The Downey story is also a stress test for the assumption that AI coding tools mostly help professional developers ship faster. The more interesting wedge may be the one DualShot Recorder lands in — creators with audiences and a specific itch, who can now turn that itch into a paid product on Apple's store without hiring out the build. If a squirrel-video creator can take the No. 1 paid app slot for 8 days using Claude and Apple's camera API, the bottleneck for niche consumer software is no longer engineering supply. It is taste and distribution, and Downey already had both.
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