Constantin 2.12
Steadier drift view, new detail screens, and a website
Hi everyone,
I’ve just published Constantin 2.12, a new version of my SuuntoPlus app for monitoring movement-speed and heart-rate drift during workouts.
What’s new in 2.12
This release focuses on making the app clearer, smoother, and more stable during real workouts.
Three switchable views
Three views are back, but this time without the need of reloading the template:
Drift — combined movement-speed and heart-rate trend
Pace / Speed / NGP — movement-speed detail view
Heart Rate — HR detail view
The upper button switches between them:
short press: next view
long press: previous view
All views share the same collected trend data, so switching views does not reset the chart.
Smoother and more representative trend chart
Trend values are now averaged over each recording interval during up to 10 minutes (four bucket, each 2:30 min average + “now” refreshed every 3 seconds). The chart now reaches further back and gives a broader view of how effort is changing over time.
Better behavior when data briefly drops
If GPS/speed data drops briefly, the chart should hold its history instead of clearing. When you stop moving without pausing the activity, the movement-speed trend holds the last valid sample while heart rate can continue updating.
Shared scale for pace and heart rate drift
In the combined drift view, both lines now share one visual scale and meet at the same point on the right. This should make it easier to see whether movement speed and heart rate are drifting together or diverging.
HR zone bar appears immediately
The heart-rate zone bar now appears as soon as an HR zone is active, without waiting for the trend chart to fill.
More stable alongside navigation and other SuuntoPlus apps
A lot of work in this release went into making the app behave more calmly under load, especially when used together with route navigation or other SuuntoPlus apps.
Website with details
I also published a small website with more details, screenshots, and explanation of how the app works:
https://constantin.szmigiel.design/
Feedback is very welcome, especially from people testing it during longer workouts, route navigation, or together with other SuuntoPlus apps.