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kakdo°: Angle Protractor

See your iPhone Duo’s opening angle

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kakdo° displays the iPhone Duo’s opening angle and its supplementary angle. Requires compatible iPhone Duo hardware and iOS 27.1 or later. On regular iPhone and iPad, photo tools let you measure several angles, add notes, save and edit measurements, and export PNG or CSV. Photo tools require iOS/iPadOS 26.5+. US$1.00 once, with no ads or subscriptions.

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PH · launched Oct 21, 2026 · 2 upvotes (top 23%)

Similar launches

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Could you build this?

No The headline feature reads the iPhone Duo's hinge angle, which depends on hardware sensor access that third-party apps generally cannot get, so the core cannot be built without platform-level access. The photo-measurement tools are easy, but they are not the main product.

What it would actually take: The real product needs low-level access to the device's hinge or angle sensor, which typically requires Apple's own frameworks, private APIs, or manufacturer cooperation. Building it would take iOS platform engineering and possibly hardware-level calibration work. Vibe coding would only cover the secondary measurement and export features.

Competitors

Other products that read as similar to this one : 181 launches clear the similarity bar, closest 8 shown.

Attention rank: #43 of 182 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 74 days after the earliest competitor.

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