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Interval Timer (Privacy Friendly)

(SECUSO) Supports circuit training sessions and helps achieve training goals.
Privacy Friendly Interval Timer supports the user during his/her circuit training session and helps him achieve his/her training goals. In order to support the user during his training, the app provides stopwatches, which can be configured according to the user’s own training and resting phases. In addition, the app reminds the user of previously defined training sessions via a notification.

To check the user’s goals and to recognize training progress, the app offers the possibility to retrieve statistics about the training times and the calories burned in a daily, weekly or monthly overview.


This app is part of the Privacy Friendly Apps group
developed by the research group SECUSO at Karlsruhe Institute of Technology.

How does Privacy Friendly Interval Timer differ from other similar apps?

1) Minimal permissions
Privacy Friendly Internval Timer requires the persmission "Run at startup" to automatically restart the motivation notifications when the phone reboots.

For comparison: The Top Ten similar apps from the Google Play Store, require an average of 9,1 permissions (September 2017). These are for instance the permission to access accounts, permissions to access, modify or delete storage and access to networks or the internet.

2) No advertisement
Moreover, Privacy Friendly Ludo distinguishes from many other applications in the way that it completely relinquishes advertisements. Advertisement might track a user's actions. It could also shorten battery life or use mobile data.


Feel free to contact us via:
Bluesky - @secusoresearch.bsky.social https://bsky.app/profile/secusoresearch.bsky.social
Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/
Job opening - https://secuso.aifb.kit.edu/english/Job_Offers.php

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  • 版本 1.3.3 (100) 推荐 更新于 2025-07-21

    该版本需要 Android 5.0 及以上版本。

    此安装包由 F-Droid 构建并签名,且保证与此源代码 tarball 保持一致。

    权限
    • 显示通知
      允许该应用显示通知
    • 开机启动
      允许此应用在系统完成引导后立即启动。这样可能会延长开机时间,并因始终运行而降低手机总体运行速度。
    • 安排精确时间的操作
      此应用可以安排工作在未来的理想时间执行。这也意味着即使当你没有主动使用设备时,该应用也可运行。
    • org.secuso.privacyfriendlyintervaltimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下载 APK 7.5 MiB PGP 签名 | 构建日志

  • 版本 1.3 (5) - 更新于 2023-10-08

    该版本需要 Android 5.0 及以上版本。

    此安装包由 F-Droid 构建并签名,且保证与此源代码 tarball 保持一致。

    权限
    • 显示通知
      允许该应用显示通知
    • 开机启动
      允许此应用在系统完成引导后立即启动。这样可能会延长开机时间,并因始终运行而降低手机总体运行速度。
    • 安排精确时间的操作
      此应用可以安排工作在未来的理想时间执行。这也意味着即使当你没有主动使用设备时,该应用也可运行。

    下载 APK 4.7 MiB PGP 签名 | 构建日志

  • 版本 1.2 (4) - 更新于 2020-05-09

    该版本需要 Android 5.0 及以上版本。

    此安装包由 F-Droid 构建并签名,且保证与此源代码 tarball 保持一致。

    权限
    • 开机启动
      允许此应用在系统完成引导后立即启动。这样可能会延长开机时间,并因始终运行而降低手机总体运行速度。

    下载 APK 2.9 MiB PGP 签名 | 构建日志