A secret manager with a repository sidebar on the open Duo
Does SecChain work on iPhone Duo?
Duo support is shown in the simulator but not out yet: closed, a secret list or an approval request; open, a repository sidebar beside the secrets. The app itself isn't released.
- Simulator verifiedThe developer, bannzai, in GitHub pull request 88, showing the app in the iPhone Duo simulator closed and open, in promotional frames. The README says the app hasn't been released.
Adapted for the fold
- Closed · Outer display
One task on the cover
On the cover, the app shows either the selected repository's secrets or a Mac approval request, with navigation along the right edge.
- Open · Inner display
Repositories beside their secrets
Open, repositories and scopes sit in a sidebar beside the selected repository's secrets.
About SecChain
SecChain is a secret manager built on a repository, with an iPhone app for approving requests from a Mac. It isn’t released yet. In the developer’s simulator screenshots, the cover shows a secret list or an approval request, and the open Duo puts repositories and scopes beside the selected repository’s secrets.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· Simulator screenshots reviewed
Simulator verified · iphone-duo
Looked at three promotional images built from documented simulator screenshots: an approval request and a secret list on the cover, and the repository sidebar beside a secret list open.
Poses shown: Closed, Open. These are observations of the evidence, not a test of every interaction.
App version: Not recorded in this evidence. Environment: iPhone Duo simulator; Xcode 27.1 named in capture notes.
Unreleased app with demo data, and no build was run. Security, secret storage, sign-in, approvals and sync were not tested. The images show the closed and open layouts only, not half-folded.
View reviewed evidence ↗
On the ideas wall
All ideasSecChain: repositories beside their secrets when open
by bannzai
bannzai's unreleased secret manager shows one repository's keys on the cover. Open flat, the repository list stays beside the keys, and approval requests come up in a sheet over the app.
Related guides
The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.
Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your app?
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Sources: SecChain Duo screenshots and how they were made (github.com) · SecChain project and release status (github.com)
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