Use your old Android device as an OctoPrint server.
Kotlin
1,794
271 commits
updated Aug 28, 2025

You don't have a Raspberry Pi, but you want to control your 3D printer remotely? Use your phone as an octoprint host! With the Octo4a app you can install Octoprint on your android phone in minutes, without any special Linux knowledge.
Some phones do not support simultaneous charging and USB on the go (OTG). Please consult this community contributed list of phones our users use, If you wish to buy a phone for the purpose of running octo4a:
https://docs.google.com/spreadsheets/d/1pbKAELzvTrMVm6NpDpK8TfQR33w3QHQEgqkcGdbPFI0/edit?usp=sharing
If you have a phone that is not on the list, please add it and let us know if it works or not:
https://forms.gle/cnTtdDqG3UcwTgnW9
Newest .apk files are available in the releases page.
FAQ and many different topics are described in the project's wiki
Here are some video tutorials made by the octo4a community that will help you with setting everything up:
"Octo4A - Octoprint On Your Android Phone - 2022 - Chris's Basement" by Chris Riley
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
If you like this project, feel free to donate on PayPal or sponsor me on GitHub. This project heavily relies on great work done on OctoPrint so please consider donating to them if you like this app. Thank you for your support :)
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
TL;DR: If your house burns down because this app malfunctioned, you cannot sue me.
This project is licensed under the AGPL license.
1,961 followers · starred Nov 2022
2,727 followers · starred Nov 2024
132 followers · starred Nov 2021
267 followers · starred Nov 2021
Use your old Android device as an OctoPrint server.
Kotlin
1,794
271 commits
updated Aug 28, 2025

You don't have a Raspberry Pi, but you want to control your 3D printer remotely? Use your phone as an octoprint host! With the Octo4a app you can install Octoprint on your android phone in minutes, without any special Linux knowledge.
Some phones do not support simultaneous charging and USB on the go (OTG). Please consult this community contributed list of phones our users use, If you wish to buy a phone for the purpose of running octo4a:
https://docs.google.com/spreadsheets/d/1pbKAELzvTrMVm6NpDpK8TfQR33w3QHQEgqkcGdbPFI0/edit?usp=sharing
If you have a phone that is not on the list, please add it and let us know if it works or not:
https://forms.gle/cnTtdDqG3UcwTgnW9
Newest .apk files are available in the releases page.
FAQ and many different topics are described in the project's wiki
Here are some video tutorials made by the octo4a community that will help you with setting everything up:
"Octo4A - Octoprint On Your Android Phone - 2022 - Chris's Basement" by Chris Riley
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
If you like this project, feel free to donate on PayPal or sponsor me on GitHub. This project heavily relies on great work done on OctoPrint so please consider donating to them if you like this app. Thank you for your support :)
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
TL;DR: If your house burns down because this app malfunctioned, you cannot sue me.
This project is licensed under the AGPL license.
1,961 followers · starred Nov 2022
2,727 followers · starred Nov 2024
132 followers · starred Nov 2021
267 followers · starred Nov 2021