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AdRadar / Cases / DualShot Recorder
iOS app · paid · 2026
A wildlife creator with no coding background vibe-coded a camera app to #1 in paid apps
Derrick Downey Jr. spent three to four months prompting Claude to build DualShot Recorder, which reached #1 on the App Store paid chart within 12 hours, according to the creator.
Evidence: LowA single outlet (AIChief) relaying a Verge report. Rankings, price and build time all come from the creator.
12 hto #1 in top paid appsCreator's claim, via AIChief
8 daysat #1Creator's claim
$6.99 → $9.99launch price, then current pricePer AIChief, May 2026
3–4 moof prompting to a working appCreator's estimate
At a glance
- Builder
- Derrick Downey Jr., a viral wildlife creator in LA, not a software developer.
- Built with
- Claude, after an earlier attempt with ChatGPT failed. He also tried Google's Antigravity.
- Product
- iPhone camera app that records vertical and horizontal crops at the same time from the full sensor, with dual-camera recording.
- Business model
- One-time purchase, no subscription, no data collection.
- Distribution
- The creator's social following is implied but no promotion campaign is described.
Timeline
- Last yearFirst vibe-coding attempt with ChatGPT fails; project shelved.
- Early 2026Restarts with Claude; "three or four months" of prompting follow.
- Release (date not stated)Hits #1 in top paid apps within 12 hours.
- +8 daysCreator says it stayed at #1 for eight days.
- ~3 May 2026AIChief publishes; app still in the top 20, price now $9.99.
How it was built
- 1Claude generated the app; the creator corrected inaccurate answers and says he "double checks and triple audits everything".
- 2No telemetry is collected, which makes bugs harder to diagnose.
- 3A troubleshooting feature for user error reports was in progress.
Why it took off
- 1A clear camera use case: shoot vertical and horizontal at once without losing resolution.
- 2A one-time price with no subscription.
- 3A large social audience (over a million followers, per the article).
Be careful with
Read the numbers with these caveats.
- No download counts or revenue are reported.
- The ranking and price are about six months old.
- Maintaining an AI-built app is a stated problem: the creator mentions losing sleep and a possible pivot.
- Every claim is the creator's own, through a secondary outlet.
§ EvidenceWhat the sources say
Confirmed by a source we read
- AIChief article exists, dated 3 May 2026, attributing the story to The Verge.
Reported figures
- #1 in 12 hours, #1 for eight days, still top 20.
- Three to four months of build time.
- Price change from $6.99 to $9.99.
Sources disagree
- No release date and no country for the chart ranking.
§ Check it yourselfWith AdRadar
Don’t take the headline on faith. Watch DualShot Recorder yourself.
See what DualShot Recorder is doing in public: its ads, the pages they lead to, how its site changes and what people say about it.
Partial fit. A paid iOS app may not run web ads. Reviews and mentions are the strongest angle.
Reads the pages its active ads link to and flags headline, offer and price changes.
If ads exist, read the pages they link to for price changes such as $6.99 to $9.99.
Reads the public sitemap: new and updated pages, page types, publishing rhythm.
Check the app's website sitemap, if one exists.
Collects Trustpilot reviews and Reddit mentions, and can summarise the complaints.
Read Reddit mentions about bugs and support, which the creator himself flags as a risk.
You can repeat this.
The parts that do not depend on a famous founder.
- 1Build a tool for a workflow you do daily and know deeply.
- 2Charge once, and say clearly that you collect no data.
- 3Launch to an audience you already have and watch chart position in the first hours.
- 4Plan for support from day one: add a way to receive error reports.
Sources
- AIChief, May 2026aichief.com
- The Verge original (cited, unread)www.theverge.com