jtx Board journals|notes|tasks
Keep track of journals, notes & tasks - iCalendar compliant and syncable with yo
- Developer
- Techbee e.U.
- License
- GPL-3.0-only
- Package
at.techbee.jtx- Category
- Calendar & Agenda, Note, Task, Writing
- Latest version
- 2.17.03.ose · Oct 6, 2026
- Minimum Android
- Android 7.0
Screenshots
Description
Elevate the power of the iCalendar standard to the next level, use the potential of the combination of journals (VJournal), notes (VJournal) and tasks (VTodo) out of one app and use DAVx5 to synchronize your entries with a CalDAV-server of your choice!
iCal standard compliant
Using the iCal standard ensures compatibility and interoparability with other apps and services independent of a dedicated provider or infrastructure. Journals and Notes are compliant to the definition of the VJOURNAL component, Tasks are compliant to the VTODO component. Future features will also include import and export functionalities to and from .ics files :-)
Combine journals, notes & tasks
Instead of using separate apps for journals, notes & tasks you can use them out of one hand, combine and link them to each other, e.g. create meeting minutes and link your tasks to them.
Sync with DAVx5
Synchronize your entries with any compatible CalDAV server by using DAVx5. By using DAVx5 you are free to choose your preferred provider for CalDAV, you can even use your local server to store and synchronize your data.
Note: DAVx5 is an independent app and must be acquired separately.
Open Source
Your data can contain private and sensitive data by their nature. We believe that individuals and companies should be able to be in full control of their own data. This means the freedom to choose where and how the data are stored, and freedom in choice of software. That is why we chose DAVx5 as a Sync Adapter to synchronise your data between your phone and any compatible CalDAV-server. The source code for jtx Board is publically available - find out more on https://jtx.techbee.at !
What does VJournal and VTodo mean?
VJournal and VTodo are calendar components defined in the international standard RFC-5545, the Internet Calendaring and Scheduling Core Object Specification (iCalendar), see https://datatracker.ietf.org/doc/html/rfc5545 . This standard also defines the VEvent component, which is the standard definition for calendar event entries. jtx Board is using the VJournal component according to this iCalendar standard for journal entries and tasks. VJournals can have a defined start date, but they cannot have a duration or an end date. VJournals with a defined start date are considered journals entries in jtx Board, VJournals without start date are interpreted as notes. The VTodo component as defined in the iCalendar standard defines the technical specification of tasks, which can have a scheduled start, due and completed date as well as a progress and a completed status (amongst others).
The VEvent definition is widely used, the VTodo component also found some implementations in Apps, but the VJournal component remained in the dark almost not being implemented at all by other apps and services. With jtx Board we would like to revive the usage of this standard and empower it with the possibilities to link and combine VTodos with VJournals - and in the future also VEvents! :-)
Find out more on https://jtx.techbee.at
iCal standard compliant
Using the iCal standard ensures compatibility and interoparability with other apps and services independent of a dedicated provider or infrastructure. Journals and Notes are compliant to the definition of the VJOURNAL component, Tasks are compliant to the VTODO component. Future features will also include import and export functionalities to and from .ics files :-)
Combine journals, notes & tasks
Instead of using separate apps for journals, notes & tasks you can use them out of one hand, combine and link them to each other, e.g. create meeting minutes and link your tasks to them.
Sync with DAVx5
Synchronize your entries with any compatible CalDAV server by using DAVx5. By using DAVx5 you are free to choose your preferred provider for CalDAV, you can even use your local server to store and synchronize your data.
Note: DAVx5 is an independent app and must be acquired separately.
Open Source
Your data can contain private and sensitive data by their nature. We believe that individuals and companies should be able to be in full control of their own data. This means the freedom to choose where and how the data are stored, and freedom in choice of software. That is why we chose DAVx5 as a Sync Adapter to synchronise your data between your phone and any compatible CalDAV-server. The source code for jtx Board is publically available - find out more on https://jtx.techbee.at !
What does VJournal and VTodo mean?
VJournal and VTodo are calendar components defined in the international standard RFC-5545, the Internet Calendaring and Scheduling Core Object Specification (iCalendar), see https://datatracker.ietf.org/doc/html/rfc5545 . This standard also defines the VEvent component, which is the standard definition for calendar event entries. jtx Board is using the VJournal component according to this iCalendar standard for journal entries and tasks. VJournals can have a defined start date, but they cannot have a duration or an end date. VJournals with a defined start date are considered journals entries in jtx Board, VJournals without start date are interpreted as notes. The VTodo component as defined in the iCalendar standard defines the technical specification of tasks, which can have a scheduled start, due and completed date as well as a progress and a completed status (amongst others).
The VEvent definition is widely used, the VTodo component also found some implementations in Apps, but the VJournal component remained in the dark almost not being implemented at all by other apps and services. With jtx Board we would like to revive the usage of this standard and empower it with the possibilities to link and combine VTodos with VJournals - and in the future also VEvents! :-)
Find out more on https://jtx.techbee.at
All versions
| Version | Released | Minimum Android | Size |
|---|---|---|---|
| 2.17.03.ose | Oct 6, 2026 | Android 7.0 | 8.5 MB |
| 2.17.00.ose | Jul 28, 2026 | Android 7.0 | 8.5 MB |
| 2.16.02.ose | Jun 27, 2026 | Android 7.0 | 8.5 MB |
| 2.16.00.ose | May 21, 2026 | Android 7.0 | 10 MB |
| 2.15.00.ose | Dec 22, 2025 | Android 6 | 12.4 MB |
| 2.14.01.ose | Nov 8, 2025 | Android 6 | 12.1 MB |
| 2.14.00.ose | Sep 23, 2025 | Android 6 | 12 MB |
| 2.12.01.ose | Aug 27, 2025 | Android 6 | 11.8 MB |
| 2.12.00.ose | Aug 13, 2025 | Android 6 | 11.8 MB |
| 2.11.06.ose | Jun 22, 2025 | Android 6 | 11.7 MB |
| 2.11.05.ose | Jun 11, 2025 | Android 6 | 11.3 MB |
| 2.11.04.ose | May 29, 2025 | Android 6 | 11.3 MB |
| 2.11.03.ose | May 11, 2025 | Android 6 | 11.3 MB |
| 2.11.02.ose | Apr 25, 2025 | Android 6 | 11.1 MB |
| 2.11.01.ose | Mar 28, 2025 | Android 6 | 11 MB |
| 2.11.00.ose | Mar 5, 2025 | Android 6 | 11 MB |
| 2.10.01.ose | Feb 23, 2025 | Android 6 | 11 MB |
| 2.10.00.ose | Jan 20, 2025 | Android 6 | 11 MB |
| 2.09.04.ose | Dec 21, 2024 | Android 6 | 11 MB |
| 2.09.03.ose | Nov 25, 2024 | Android 6 | 11 MB |
| 2.09.02.ose | Nov 9, 2024 | Android 6 | 10.5 MB |
| 2.09.01.ose | Aug 15, 2024 | Android 6 | 10.5 MB |
| 2.09.00.ose | Jul 19, 2024 | Android 6 | 10.5 MB |
| 2.07.09.ose | Jun 9, 2024 | Android 5.0 | 9.8 MB |
| 2.07.08.ose | May 30, 2024 | Android 5.0 | 9.8 MB |
| 2.07.07.ose | May 25, 2024 | Android 5.0 | 9.8 MB |
| 2.07.06.ose | May 17, 2024 | Android 5.0 | 9.7 MB |
| 2.07.05.ose | Apr 27, 2024 | Android 5.0 | 9.7 MB |
| 2.07.04.ose | Apr 20, 2024 | Android 5.0 | 9.7 MB |
| 2.07.03.ose | Apr 12, 2024 | Android 5.0 | 9.7 MB |
| 2.07.02.ose | Mar 30, 2024 | Android 5.0 | 9.7 MB |
| 2.07.01.ose | Feb 13, 2024 | Android 5.0 | 9.6 MB |
| 2.07.00.ose | Jan 22, 2024 | Android 5.0 | 9.5 MB |
| 2.06.05.ose | Jan 7, 2024 | Android 5.0 | 9.7 MB |
| 2.06.04.ose | Dec 4, 2023 | Android 5.0 | 9.4 MB |
| 2.06.03.ose | Nov 13, 2023 | Android 5.0 | 9.4 MB |
| 2.06.01.ose | Oct 20, 2023 | Android 5.0 | 9.4 MB |
| 2.06.00.ose | Oct 8, 2023 | Android 5.0 | 9.3 MB |
| 2.05.06.ose | Sep 30, 2023 | Android 5.0 | 10.2 MB |
| 2.05.05.ose | Sep 19, 2023 | Android 5.0 | 10.2 MB |
| 2.05.04.ose | Sep 1, 2023 | Android 5.0 | 10.1 MB |
| 2.05.03.ose | Aug 22, 2023 | Android 5.0 | 10.1 MB |
| 2.05.02.ose | Aug 10, 2023 | Android 5.0 | 10.1 MB |
| 2.05.01.ose | Jul 31, 2023 | Android 5.0 | 10.1 MB |
| 2.05.00.ose | Jul 15, 2023 | Android 5.0 | 10.1 MB |
| 2.04.07.ose | Jun 25, 2023 | Android 5.0 | 10 MB |
| 2.04.05.ose | Jun 21, 2023 | Android 5.0 | 10 MB |
| 2.04.04.ose | Jun 14, 2023 | Android 5.0 | 9.9 MB |
| 2.04.03.ose | Jun 4, 2023 | Android 5.0 | 9.9 MB |
| 2.04.02.ose | May 15, 2023 | Android 5.0 | 9.7 MB |
| 2.04.01.ose | May 15, 2023 | Android 5.0 | 9.7 MB |
| 2.04.00-rc12.ose | May 2, 2023 | Android 5.0 | 9.7 MB |
| 2.03.01-rc04.ose | Apr 13, 2023 | Android 5.0 | 9.6 MB |
| 2.03.00-rc22.ose | Apr 10, 2023 | Android 5.0 | 9 MB |
| 2.02.02-rc5.ose | Feb 18, 2023 | Android 5.0 | 8.8 MB |
| 2.02.01-rc11.ose | Feb 6, 2023 | Android 5.0 | 8.8 MB |
| 2.02.00-rc12.ose | Jan 21, 2023 | Android 5.0 | 8.8 MB |
| 2.01.09-rc03.ose | Jan 9, 2023 | Android 5.0 | 8.7 MB |
| 2.01.07-rc05.ose | Jan 3, 2023 | Android 5.0 | 8.6 MB |
| 2.01.06-rc05.ose | Jan 3, 2023 | Android 5.0 | 8.6 MB |
| 2.01.05-rc08.ose | Dec 28, 2022 | Android 5.0 | 8.7 MB |
| 2.01.04-rc07.ose | Dec 25, 2022 | Android 5.0 | 8.6 MB |
| 2.01.04-rc06.ose | Dec 25, 2022 | Android 5.0 | 8.6 MB |
| 2.01.03-rc08.ose | Dec 17, 2022 | Android 5.0 | 8.6 MB |
| 2.01.02-rc07.ose | Dec 13, 2022 | Android 5.0 | 8.5 MB |
| 2.01.01-rc12.ose | Dec 5, 2022 | Android 5.0 | 8.5 MB |
| 2.01.00-rc17.ose | Dec 1, 2022 | Android 5.0 | 8.5 MB |
| 2.00.10-rc01.ose | Nov 21, 2022 | Android 5.0 | 6.6 MB |
| 2.00.09-rc04.ose | Nov 16, 2022 | Android 5.0 | 6.5 MB |
| 2.00.08-rc01.ose | Nov 9, 2022 | Android 5.0 | 6.5 MB |
| 2.00.07-rc03.ose | Nov 5, 2022 | Android 5.0 | 6.1 MB |
| 2.00.06-rc08.ose | Oct 29, 2022 | Android 5.0 | 6.1 MB |
| 2.00.05-rc04.ose | Oct 25, 2022 | Android 5.0 | 6.2 MB |
| 2.00.04-rc02.ose | Oct 22, 2022 | Android 5.0 | 6.5 MB |
| 2.00.03-rc01.ose | Oct 18, 2022 | Android 5.0 | 6.5 MB |
| 2.00.02-rc01.ose | Oct 17, 2022 | Android 5.0 | 6.5 MB |
| 1.02.04-rc08.ose | Aug 17, 2022 | Android 5.0 | 7.6 MB |
| 1.02.03-rc03.ose | Jul 24, 2022 | Android 5.0 | 7.1 MB |
| 1.02.02-rc02.ose | Jul 3, 2022 | Android 5.0 | 7.1 MB |
| 1.02.00-rc10.ose | Jun 20, 2022 | Android 5.0 | 7.8 MB |
| 1.01.02-rc4.ose | Jun 14, 2022 | Android 5.0 | 6.1 MB |
| 1.01.01-rc13.ose | Jun 5, 2022 | Android 5.0 | 6 MB |
| 1.00.16-rc05.ose | May 29, 2022 | Android 5.0 | 6 MB |
| 1.00.15-rc01.ose | Apr 30, 2022 | Android 5.0 | 6.1 MB |
| 1.00.14-rc02.ose | Apr 20, 2022 | Android 5.0 | 6 MB |
| 1.00.13-rc02.ose | Apr 18, 2022 | Android 5.0 | 6 MB |
| 1.00.12-rc04.ose | Apr 18, 2022 | Android 5.0 | 6 MB |
| 1.00.11-rc01.ose | Apr 11, 2022 | Android 5.0 | 6 MB |
| 1.00.10-rc01.ose | Apr 5, 2022 | Android 5.0 | 6 MB |
| 1.00.09-rc01.ose | Apr 3, 2022 | Android 5.0 | 6 MB |
| 1.00.08-rc01.ose | Mar 27, 2022 | Android 5.0 | 6 MB |
| 1.00.07-rc03.ose | Mar 24, 2022 | Android 5.0 | 6 MB |
| 1.00.04-rc11.ose | Jan 24, 2022 | Android 5.0 | 5.8 MB |
| 1.00.03-release.ose | Jan 7, 2022 | Android 5.0 | 5.7 MB |
| 1.00.02-release.ose | Dec 30, 2021 | Android 5.0 | 5.6 MB |
How to install an older version of an Android app · How to install an APK file on Android
From the developer (GitHub)
APK files published by the developer on GitHub. They are signed by the developer and may not install over the other builds on this page (different signature). Links open github.com.
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