# jtx Board

> Android app for journals, notes and tasks with CalDAV sync

jtx Board is an open-source Android app that keeps journals, notes and tasks together and lets them be linked, for example tasks attached to meeting minutes. Entries follow the iCalendar standard (VJOURNAL and VTODO), are stored on the device and can sync with a CalDAV server of the user's choice through the separate DAVx5 app. The Google Play version is free with a paid Pro upgrade, and an open-source edition is published on F-Droid.

- **Category:** To-Do List Apps
- **Made by:** Techbee e.U. (since 2021)
- **Website:** https://jtx.techbee.at
- **Runs on:** Android
- **Facts last checked:** Oct 9, 2026

## Pricing

jtx Board has a free plan. Paid plans start at $0.99 to $3.49 per item, in-app purchase on Google Play (basis not shown).

- **Pricing model:** Free plan
- **Free plan:** The standard version on Google Play is free for journals, notes and tasks kept on the device. The open-source edition on F-Droid is also free and shows a donations page in place of the in-app purchase.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| Standard | $0 | The free Google Play version for journals, notes and tasks stored on the device. Editing entries in remote collections needs Pro. |
| Open source edition | $0 | The F-Droid build, made only from open-source libraries, with a donations page in place of the in-app purchase and no ads or subscriptions. |
| jtx Board Pro | $0.99 - $3.49 in-app purchase; Google Play lists a range, basis not shown | Unlocks editing in remote collections, quick entries, quick editing by long click and dynamic colors on Android 12 and later. |

Read from https://play.google.com/store/apps/details?id=at.techbee.jtx&hl=en_US&gl=US on Oct 9, 2026. Prices change, so confirm with jtx Board before buying.

## Key features

- **Journals, notes and tasks in one app:** Journals hold dated entries such as meeting minutes or a diary, notes hold memos without a date, and tasks carry due dates, subtasks and a progress value.
- **Linked entries:** Tasks can be attached to a journal or a note, and any entry can take a comment or an audio comment, so follow-ups stay with the minutes they came from.
- **iCalendar standard format:** Journals and notes are stored as VJOURNAL components and tasks as VTODO components under RFC 5545, so other apps and servers that follow the standard can read them.
- **CalDAV sync through DAVx5:** The separate DAVx5 app syncs entries with a CalDAV server the user picks, including a self-run one. Infomaniak's kSync, a fork of DAVx5, also works.
- **Local storage and offline use:** Entries are stored on the device and the app works without an internet connection; syncing is optional.
- **Recurrence, alarms and locations:** Entries can recur daily, weekly, monthly or yearly, raise alarm notifications and carry a map location. Geofence notifications are in the Google Play version only.

## Good for

- Android users who sync tasks with their own CalDAV server
- Nextcloud, Fastmail or Radicale users who want journals too
- Keeping meeting minutes and their follow-up tasks together

## Worth knowing

- Android only: the vendor's terms say the app is currently available on Android, and no iOS, desktop or web version is listed.
- Sync needs the separate DAVx5 app and a server that accepts VJOURNAL; the compatibility list marks iCloud, Posteo, Ionos and Infomaniak as not supporting it.
- In the Google Play version, editing entries in remote collections is part of the paid Pro upgrade.
- Google Play lists in-app purchases at $0.99 to $3.49 per item without naming them, so the exact Pro price is not shown; the app's code treats Pro as a one-time purchase.

## Works with

DAVx5, kSync, Nextcloud, ownCloud, Fastmail, Radicale, Baikal, GMX

**Tags:** Tasks, Notes, Daily notes, Open source, Works offline, Local-first

## Alternatives

- [Tasks.org](https://toolgpa.com/tools/tasks-org): Open-source Android to-do list with CalDAV and Google Tasks sync. [Compare](https://toolgpa.com/compare/jtx-board-vs-tasks-org)
- [OpenTodoList](https://toolgpa.com/tools/opentodolist): Open-source to-do list and notes app that stores plain files. [Compare](https://toolgpa.com/compare/jtx-board-vs-opentodolist)
- [Super Productivity](https://toolgpa.com/tools/super-productivity): Free, open-source to-do app with time tracking and a Pomodoro timer. [Compare](https://toolgpa.com/compare/jtx-board-vs-super-productivity)
- [Vikunja](https://toolgpa.com/tools/vikunja): Open-source task manager to self-host or use as a paid cloud. [Compare](https://toolgpa.com/compare/jtx-board-vs-vikunja)
- [Errands](https://toolgpa.com/tools/errands): Simple open-source to-do app for the GNOME desktop on Linux. [Compare](https://toolgpa.com/compare/errands-vs-jtx-board)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 9, 2026:

- https://play.google.com/store/apps/details?id=at.techbee.jtx&hl=en_US&gl=US
- https://jtx.techbee.at/
- https://jtx.techbee.at/open-source
- https://jtx.techbee.at/contribute
- https://jtx.techbee.at/sync-with-davx5
- https://jtx.techbee.at/sync-with-ksync
- https://jtx.techbee.at/compatibility
- https://jtx.techbee.at/terms-conditions
- https://f-droid.org/en/packages/at.techbee.jtx/
- https://github.com/TechbeeAT/jtxBoard
- https://raw.githubusercontent.com/TechbeeAT/jtxBoard/develop/app/src/main/res/values/strings.xml
- https://raw.githubusercontent.com/TechbeeAT/jtxBoard/develop/app/src/gplay/java/at/techbee/jtx/flavored/BillingManager.kt

Page: https://toolgpa.com/tools/jtx-board
Listed by ToolGPA (toolgpa.com).