FOR POLAR LOOP · H10 · COMPATIBLE BLUETOOTH SENSORS

Your physiology,
on record.

ampulse connects straight to your sensors and keeps every raw beat as files on your iPhone — full nights, quiet daytime windows, live thresholds from your chest strap.

Get early access Recorded and stored on your iPhone
Ampulse dashboard showing last night, today, recent training and connected sensors

Your nights from Polar Loop or Apple Health. Your workouts from compatible sensors and gym equipment.

RECORDS FROMPOLAR LOOPH10GARMIN HRMCOOSPORR STRAPSAPPLE HEALTHCONCEPT2 PM5FTMS MACHINES
EXPORTS TOFIT + RAW RRCSVKUBIOS RRCompatible with StravaASSISTANT FILE
01 · NIGHT ANALYTICS

See your
whole night.

Your pulse and HRV through the night — from Apple Health, or straight from a Polar Loop. With the Loop, you keep the raw beats behind every reading.

  • HRPulse across the night
  • HRVWhole night, window by window
  • BEATSSensor intervals, quality attached
Ampulse night view with asleep and restorative time and sleep phases
03:12–03:17REM
HR
48 bpm
HRV
62 ms

Valid beats 96%

02 · DAY ANALYSIS

Your HRV,
during the day.

See your HRV in the quieter moments of your day. Follow your pattern over time, with the Loop’s recorded intervals there when you want to look closer.

Keep the underlying record
Ampulse Day view with heart-rate course and personal trend
03 · LOAD

Same effort.
A different response.

Follow your effort live. Then see how your heart rate compares with past sessions at a similar pace or power.

+6 bpm

At 220–235 W, your heart rate ran six beats above recent sessions. Open the record and look closer.

Ampulse ramp test record with heart rate curve, power and DFA alpha 1

THE MANIFESTO

Keep the evidence.
Ask better questions.

An unusual night. A harder session. A number that needs explaining. Keep the sensor data behind it, see how the result was calculated, and take the record wherever your questions lead.

THE WORK, INSTRUMENTED

Train live.
Review later.

Choose a session, connect your sensors, and keep your performance and heart rate in the same record.

LIVE · ROWCONNECTED · H10 · PM5
Ampulse live view in landscape: 150 watts during warm-up, target band, segment ribbon and next block

Different gym, same record. Connect your strap and compatible equipment to bring heart rate, power, pace and cadence together on one screen.

SESSION TEMPLATES

Start from a session template.
Or write your own.

BIKEOver-Unders · 3×1060 min
RUNCruise · 4×848 min
ERGOSteady · 4545 min

Run, bike and HR-led templates are editable. Import a .zwo when you already have a plan.

POLAR LOOP Full Night + Day record RR STRAP Beat-to-beat HRV + DFA α1 FTMS / PM5 Machines, meters and sensors

NATIVE PORTABILITY

Share it raw.
Read it anywhere.

Keep a copy. Send it to your coach. Analyse it in your preferred tool. Export FIT, CSV and Kubios-ready RR, with intervals where your sensor supplies them.

Ask your own assistant about your record. Share a Markdown dossier or connect your exported folder through MCP. Optional, always: a cloud assistant receives the data you share with it.

Ampulse export screen with range, include toggles and formats: AI dossier, raw files, FIT files, Kubios RR

SELF-CUSTODY

Physically.
Permanently. Yours.

Your Loop talks to your iPhone. Your recordings live there as files you can export and read outside ampulse. No ampulse account. No health-data server of ours.

You choose when the record leaves your phone. Optional folder sync and assistant access are explained below, with each destination named.

Read the plain-language policy

HARDWARE

What each device unlocks.

Match the hardware to what you want recorded — and read the limits before you buy.

Compatible Bluetooth RR straps

Training sessions and RR-based HRV and DFA α1 where signal quality allows, with received intervals kept on file.

Polar H10 · Garmin HRM-Dual, HRM-Pro, HRM-Fit, HRM 600 · CooSpo H6, H808S · Wahoo TICKR — requires RR intervals over the standard Bluetooth Heart Rate service.

Polar H10

All of the above, plus a resting ECG trace you can record and export.

Polar Loop

Nights and days: sleep stages, whole-night HRV, resting pulse, breathing, skin temperature.

Direct setup and sync in ampulse, without a Polar Flow account. Firmware updates are available in the app and require an internet connection to Polar’s firmware service.

Concept2 PM5

Rowing and ski splits, stroke rate, distance — read natively, no adapter.

FTMS gym machines

Power, pace and distance from treadmills, bikes, rowers and cross-trainers — and target control where the machine allows it.

FIT files

Sessions imported from any watch or platform that exports FIT, with beat intervals where the file carries them.

Other wearables, via Apple Health

Import nights written to Apple Health by a watch, ring or sleep app. Sleep times, stages and summary figures depend on what the source writes and what you allow ampulse to read. No Loop is required.

Health-imported nights contain the available stages and summaries, not the Loop’s pulse-interval record. Source labels distinguish imported values from ampulse’s own interval-based calculations.

QUESTIONS, ANSWERED

Before you ask.

What exactly does ampulse record?

Three things: full nights from the Polar Loop — HRV in five-minute windows, each gated by signal quality; quiet daytime windows when you are still; and training sessions with live heart rate, power and DFA α1. Sensor-provided intervals are kept on file, with quality information where the device supplies it. Nights can also be imported through Apple Health without a Loop.

What do HRV and the live thresholds tell me?

HRV describes variation between beat intervals. For Loop nights, ampulse calculates it in five-minute windows that pass its quality checks. Daytime analysis selects quiet windows using movement and quality flags. During training, a compatible RR strap enables DFA α1, a measure of patterns in those intervals. Its 0.75 and 0.50 markers help estimate intensity thresholds; they are not a laboratory measurement. Sensor artifacts can still affect results. Health-imported HRV is shown as the statistic the source supplies.

Which hardware do I need?

A Polar Loop provides the direct night and day record; Apple Health can supply imported nights. Training uses compatible Bluetooth straps that send RR intervals — Polar H10, Garmin HRM-Dual, HRM-Pro, HRM-Fit or HRM 600, CooSpo H6 or H808S, Wahoo TICKR. Concept2 PM5 and FTMS gym machines connect for power and pace. Details per model on the support page.

Can it replace Polar Flow?

ampulse supports direct Loop setup, sync and recording without a Polar Flow account. Completed nights appear after a successful sync. Firmware updates are available in the app and need internet access to Polar’s firmware service.

Do I need an account?

No ampulse account is needed. The Loop connects directly over Bluetooth. Purchases use your Apple ID; optional services such as iCloud, Strava or a cloud assistant use their own accounts.

Where does my data live?

Recordings start as files on your iPhone. You can export them yourself or link a folder that ampulse keeps current automatically. An iCloud Drive folder syncs through Apple. If you share files or use MCP with a cloud assistant, that provider receives the shared data. See the privacy policy for the connected features and deletion details.

What does it cost?

Two plans: 3.99 a month or 34.99 a year, with a 7-day free trial on yearly. Billed by Apple, cancel in Settings, and every night already recorded stays on your phone as yours.

COMING SOON · IPHONE

Your record
starts tonight.

App Store release in preparation. Request a TestFlight invitation by email and tell us which devices you use.

Request the launch build Support

Plans: 3.99 monthly · 34.99 yearly (7-day free trial) — billed by Apple, cancel in Settings.