Fact sheet

Pulse, in the rows a fact-check needs.

Product: Pulse, a couples wellness app for iPhone and Apple Watch

Made by: Knightify FlexCo, an Austrian flexible Kapitalgesellschaft

Based in: Vienna, Austria

Founder: Amirali Khoshneviszadeh, managing director

Platforms: iOS and watchOS only. There is no Android version and none is planned.

Requirements: An iPhone on iOS 17 or later. An Apple Watch is optional: Series 6 or later, on watchOS 10.

Price: Free to download and use. No advertising, no trackers, no in-app purchases.

Languages: English, German, Persian, Arabic and Russian. Arabic and Persian are laid out right to left throughout.

App Store category: Health & Fitness

On the App Store since: 1 July 2026

On the App Store: Open the listing

Bundle identifier: Knightify-FlexCo.pulse

Press contact: [email protected]

Social: @knightifypulse

Coverage

What has been written so far.

Three publications have looked at Pulse. Each headline is printed in the language it was written in: translating one would put words in a journalist’s mouth.

Writing about Pulse? Send us the link when it runs and we will add it here. [email protected]

Boilerplate

Three lengths, already cleared.

Take whichever fits the space you have. All three are ours to hand out, so nothing here needs to be checked with us before it runs.

One line

Pulse turns the signals from your Apple Watch into one gentle sentence for your partner, never a number.

Short, about fifty words

Pulse is a couples wellness app for iPhone and Apple Watch, made in Vienna. It reads the wearer’s own health signals on the device itself, resting heart rate, heart rate variability, sleep and steps, and sends their partner one gentle sentence about the day. Never a number, never a chart, never a diagnosis.

Long, about a hundred and twenty words

Pulse is a couples wellness app for iPhone and Apple Watch, made by Knightify FlexCo in Vienna. It reads the signals a wearer’s own Watch already collects, resting heart rate, heart rate variability, sleep and steps, interprets them on the device, and gives their partner one short, human cue about the day: “a calm evening might mean a lot today”. The partner never sees a measurement, a chart or a score, and the raw numbers never leave the phone. Around that sits a shared space for two: an end-to-end encrypted chat, a shared story, calendar and watchlist, and a daily question neither partner sees until both have answered. Pulse is free, carries no advertising, and sells nothing about anyone.

How to write our name

The product is Pulse. Not PULSE, not “Pulse.”, and not Knightify Pulse.
On first mention: Pulse, made by Knightify FlexCo in Vienna. After that, Pulse on its own is right.
FlexCo is part of the company name, not an abbreviation to expand. It is the Austrian legal form, a flexible Kapitalgesellschaft.
The founder is Amirali Khoshneviszadeh, managing director of Knightify FlexCo.

On the record

Quotes you can use as they are.

Both are attributable to Amirali Khoshneviszadeh, founder of Knightify FlexCo. For anything beyond them, or for an interview in English or German, write to us and we will find a time.

Every other app that touches health data ends in a dashboard. We wanted the opposite: your partner should learn something true about your day without ever being handed a number to interpret. One sentence, and then it expires.

Amirali Khoshneviszadeh, founder, Knightify FlexCo

We can explain every cue Pulse has ever sent, because there is no model anywhere in it. The sentences are written by us in advance and chosen by rules you can read. That is a design constraint, and it is the reason the app can promise what it promises.

Amirali Khoshneviszadeh, founder, Knightify FlexCo

Story angles

What we can talk about in detail.

Six subjects we can go deep on, with the code and the documentation to back each one up rather than a slide.

Health data that never becomes a number

The interpretation happens on the phone. What crosses to the partner is one derived sentence, and the measurement it came from stays behind. We can walk through exactly which signals are read and how the reading is formed.
Encryption, with the limits printed next to it

Chat, photos, the shared story and watchlist comments are end-to-end encrypted, with the key in the user’s own iCloud Keychain. The daily cue and the daily question are not, because they travel inside the couple’s shared iCloud zone. Our security page says so in the same size type as the promise.
A relationship app with no language model in it

Nothing Pulse says is generated. Every sentence is written in advance and picked by deterministic rules, which is what makes each one explainable, and what keeps messages, photos and health signals from ever reaching a third party’s model.
Why there is no Android version, and will not be

Not a roadmap gap and not a resourcing excuse. On-device health interpretation and the key living in the iCloud Keychain are what the privacy promise rests on, and we would rather say so than leave couples waiting.
Designing for the couple it should not be used on

Nothing in an app can tell a worried partner from a controlling one. We publish that, put pause and disconnect one tap away, and let a pause be invisible. It is the hardest paragraph on the site and it is not hidden.
Five languages, two of them right to left

Persian and Arabic are laid out right to left in the app and on this site, from the first release rather than mirrored on afterwards. We can talk about what that costs and what it changes.

Accuracy

Six things Pulse is not.

The claims we are most often asked to confirm, and cannot. Getting these wrong is the fastest way for a piece about Pulse to be corrected later.

Not a medical device

Pulse is a wellness tool. It does not diagnose, treat or predict any condition, and every health concept it references is sourced to the NIH, the American Heart Association, Cleveland Clinic and others, linked inside the app.
Not a mood reader

Pulse never claims to know how someone feels. Cues are written as “might”, “may” and “could”, because the context that explains a restless night is the one thing a wearable cannot see.
Not a cycle tracker

Rhythm Awareness can soften the wording of a cue without ever naming a phase, and the phase never leaves the device. Sharing a real cycle calendar with a partner is a separate choice, off by default.
No AI, and no language model

There is no model in the product. No message, photo, health signal or answer is sent to one, and nothing the app says about a relationship is generated text.
WHOOP support is not live yet

The integration is written and openly documented, and it is switched off in the shipped app. There is no way to connect a band today, so please do not tell readers there is.
Not coming to Android

There is no Android version and none is planned. For a couple where one partner is not on an iPhone, we would rather recommend something cross-platform than sell a wait.

Brand assets

The icon, the mark and the share card.

Every file below is also in the archive at the top of this page. Each one is served from our own domain, which is why nothing on this site asks your browser to talk to anyone else.

App icon, vector

SVG · 2 KB

Download
App icon, 512 pixels

PNG 512 · 37 KB

Download
Pulse mark, on its own

SVG · 1 KB

Download
Share card, 1200 × 630

PNG 1200x630 · 124 KB

Download

The mark is the app icon’s own sphere, with no plate behind it: it sits on a light layout and a dark one without a second file.

Using the artwork

Use the mark and the icon to illustrate coverage of Pulse. No permission request needed for that.
Please do not recolour, stretch, rotate or add effects to them, and do not set them inside another company’s lockup.
The wordmark is set in Schibsted Grotesk Medium. If you need it as an image rather than as type, ask and we will send it.

Colours

Paper #FAF8F4
Ink #16140F
Accent #A44C39
Accent, dark theme #D17853

Screenshots

Real builds, not mockups.

Every screen here is a screenshot of the shipped app, in the light or dark theme your browser is set to. What is written in them is demonstration content, not a real couple.

Today: the partner’s cue, and your own day
Together: the shared, encrypted chat