frequency-app
A social media app for private sharing of photos with friends and family.
It was great meeting @jesseplusplus.bsky.social at #FediCon
She’s the developer of Frequency frequency.app which is a private only photo sharing app that runs on a forked Mastodon back end called Decodon
github.com/jesseplusplu…
— Boris (@bmann.ca) August 2, 2025 at 9:49 AM
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Built on React Native for the mobile app on iOS, and the backend is a fork of Mastodon called Decodon “a media-focused fork of mastodon that supports only private/followers-only accounts”.
Built by Jesse Karmani @[email protected] / @jesseplusplus.bsky.social
Decodon
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All accounts are locked/private, meaning content is only distributed to followers jesseplusplus/decodon#1
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Support for push notifications to Expo-based apps jesseplusplus/decodon#2
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Pre-signed URLs for extra-secure storage of uploaded private media jesseplusplus/decodon#9
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replies are treated more like comments and are filtered from the home feed jesseplusplus/decodon#3
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circles (lists of followers you can address posts to instead of only followers) - cherry-picked from fedibird - jesseplusplus/decodon#13
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default “inner circle” for all accounts to get them started - jesseplusplus/decodon#14
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timeline markers for accounts’ feed of updates - jesseplusplus/decodon#189
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more control over logo and branding in email templates jesseplusplus/decodon#10
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updated heroku deployment configs