Manual Interval+ / Manual interval SuuntoPlus App with previous interval insights

[Thibault B.]

Updated on 10 April for new version

Hi everyone,

I’ve released a new version of my SuuntoPlus app Manual Interval+, built for runners who train using the lap button and want a clear, consistent interval screen for any kind of workout.

I originally designed the app because many of my own interval sessions don’t follow a strict “work / rest” pattern. For example: short accelerations inside longer blocks, variable‑pace intervals, fartleks, or pyramid workouts. With many existing manual‑interval apps, the screen automatically switches to a “rest” view as soon as you press Lap, which can hide useful metrics even when you’re still running. I also wanted an easy way to review the previous interval’s data without losing context.

What’s new (9 April update): two modes

Manual Interval+ now offers two modes, selectable directly on the watch during the activity.

INT‑INT mode (fully manual)

• Every lap starts a new interval.
• There is no predefined effort or rest phase — you decide when you are running or resting.
• A Previous Interval panel is available to review the most recent interval’s data:
  • during rest, or
  • after starting the next interval.
• This mode is designed for completely free‑form interval sessions.

INT‑REST mode (alternating display)

• Each Lap toggles between INT (interval) and REST (recovery).
• Phases are clearly labeled (INT 1, REST 1, INT 2…).
• During INT phases, all necessary information are displayed and using the most available space.
• During REST phases, the Previous Interval panel is shown automatically to review the last effort.

Main features

• Clean and readable 2×2 layout for interval or rest phases.
• Tenth‑second lap timing (useful for track repeats).
• Interval/rest average pace, current heart rate, distance, and time.
• Previous Interval panel switching between:
  • previous interval time + average pace
  • previous interval distance + average heart rate
• Alternation between interval number and time of day in the title.
• No configuration required before starting.

Compatibility

All Suunto watches were tested using the simulator, and I also tested the app on my own Suunto Race S. Please let me know if you notice any issues on your device.

What’s next

Thanks a lot for the feedback I’ve already received by email and through app reviews — it directly influenced the addition of the INT‑REST mode. I’m considering:

• a short, temporary “previous interval recap” when pressing Lap,
• further UI refinements based on real‑world use.

I hope Manual Interval+ proves useful to some of you. I’d be happy to hear your thoughts or improvement ideas once you’ve tried it!

Thibault

[Thibault B.]

Check out the updated version of the app (v1.2a), and consider leaving a review!

I’ve also updated my original post to reflect the actual state of the app.

[Pe Ter]

@Thibault-B. Hi, thanks a lot! I really like your app and your willingness to further improve it. Can’t wait to test the new Int-Rest mode. The temporary “previous interval recap” will be very helpful for me as well, as I am a masters runner with problems reading the small information about the previous interval in the bottom section.