A calibrated sound level meter with full Duo support
Does Decibel X:dB Sound Level Meter work on iPhone Duo?
Yes. Decibel X:dB Sound Level Meter's App Store page says it supports iPhone Duo, so the update is out. FoldHunt's editor hasn't seen it running yet.
- App Store confirmedThe developer, in the release notes for version 9.9.8 (released October 11, 2026): "Full support for the iPhone Duo". There are no pictures of it on the Duo yet. The App Store seller is SkyPaw Co., Limited (id 448155923).
Adapted for the fold
We're waiting on details of exactly what Decibel X:dB Sound Level Meter changes for the fold. Are you the developer? Tell us.
About Decibel X:dB Sound Level Meter
Decibel X is a pre-calibrated sound level meter that measures noise in dB, with a dosimeter, recordings, reports and a camera overlay. Version 9.9.8 adds full support for iPhone Duo, the release notes say, without describing the layout. There are no pictures of it on the Duo yet.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 9.9.8 (released October 11, 2026) mention iPhone Duo: "Here's what's new for the version 9.9.8: ∿ [New] - Full support for the iPhone Duo Previously in version 9.9.7: ∿ [Fixes] - Camera: the dB readings and the graphs on the overlay now update smoothly…"
App version: 9.9.8.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗
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Is this your app?
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Sources: Decibel X:dB Sound Level Meter on the App Store (apps.apple.com)
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