SidePlay · iOS & Android

Family testing

Audio plays, music, podcasts. From the family's own collection.

SidePlay is a calm audio player for children. It plays what the family already owns or subscribes to – even in airplane mode. No recommendations, no autoplay chains, no engagement mechanics.

  • Offline
  • No recommendations
  • No tracking
SidePlay on iPhone and SidePhone: now playing, Grimm's fairy tales
Real screens: iPhone left, SidePhone right

In motion

This is SidePlay – on iPhone and SidePhone.

The same feature side by side: iPhone on the left, SidePhone SP-01 on the right. Only openly licensed or public-domain content is shown. Videos load only when started and come straight from this site – no YouTube, no tracking. The apps and captions are in German.

Overview · 1:31 · with music · in German

The principle

Offline first. No subscription needed.

A child's audio plays and favourite music should not require a streaming subscription, a commercial account or a permanent connection. SidePlay plays the family's own collection and downloads it to the device; after that, everything works without a network.

Resume takes one tap, audio plays are grouped by series, and search only finds what is approved in the family's own library. When a story ends, it ends.

Own server

Plex today. Nextcloud as an alternative.

Today SidePlay reaches the family's media collection through Plex: audio plays, music and audiobooks live on a server on the home network, and SidePlay fetches them from there and keeps them on the device for the road.

Nextcloud is in progress as an alternative: music and audiobooks from the Nextcloud "Music" app via its Subsonic interface, with a separate read-only key per device. Families who already use Nextcloud for photos and files will not need a second media server. This source is built and shown in the videos, but not yet part of a released version.

Plex

Own media server on the home network

Available

Nextcloud Music

Alternative to Plex, no Plex account

In development

Podcasts

RSS subscriptions, including public broadcasters' children's shows

Available

Apple Music

On iOS, with own subscription

Available

Everyday use

Simple for children. Clear for parents.

For children

Large tiles, few paths and a home screen that continues with whatever played last.

  • Resume with one tap
  • Favourites and own lists
  • Audio plays by series
  • Sleep timer with fade-out

For parents

Settings sit behind a parent lock and can be explained to the child.

  • Parent lock with PIN
  • Show or hide libraries
  • Minimum age per title
  • Downloads on Wi-Fi only

For families

SidePlay plays what is already there and sends nothing out.

  • Data stays on the device
  • No SideKids account
  • Own server instead of a platform
  • No recommendations, no tracking

Status

In family testing. Soon for more families.

SidePlay runs daily on the devices of the family that builds it. Store links, source code and the privacy policy will appear here once the release is prepared.

iPhone

Release in preparation

Family testing

Android / SidePhone

In daily use on the SidePhone

Family testing

Source code

Published with the first release

Technical details

iOS
Swift · SwiftUI · iOS 17+

Android
Kotlin · Jetpack Compose · Media3 · Room

Sources
Plex, podcast feeds, Apple Music (iOS); Nextcloud in development

License
GPL-3.0-or-later (intended)

SidePlay is an independent project and is not affiliated with Plex, Apple or Nextcloud. These names only describe the supported services. SidePlay plays podcasts from the publishers' public feeds; rights to the content remain with them.