Terms of Use — Pulsr

Last updated: August 11, 2026

Pulsr ("the app") is developed by Krillo ("we", "us"). By installing or using the app you agree to these terms. If you do not agree, please do not use the app.

What the app does

Pulsr turns your phone's vibration motor into a relaxation massager with several vibration patterns and an adjustable intensity. It is a wellness and relaxation utility.

Not a medical device

Pulsr is not a medical device and does not diagnose, treat, cure or prevent any condition. Nothing in the app is medical advice. Do not use it on injuries, on inflamed or numb areas, during pregnancy, or if you have an implanted electronic device such as a pacemaker, without first consulting a qualified professional. Stop using it if you feel pain or discomfort.

Free version and Pulsr Pro

The app is free to use, at full vibration strength, with the Steady and Pulse patterns and session lengths of 1, 2 or 3 minutes. A session stops when its timer runs out; you can start another one straight away, as often as you like. Pulsr Pro is an optional subscription that additionally unlocks:

• all five vibration patterns;
• longer sessions — 5, 10, 20 or 30 minutes;
• background massage — vibration continues when you switch apps or lock the screen;
• every pattern we add later, at no extra charge.

Every session ends automatically when its timer runs out. There is no unlimited mode on either plan — this protects your battery and prevents the phone from vibrating unnoticed in a pocket or bag.

Subscriptions, trial and billing

• Subscriptions are sold and processed by Google Play, not by us. Prices shown in the app come from Google Play in your local currency.
• The weekly plan starts with a 3-day free trial. You are not charged until the trial ends. If you cancel before the trial ends, you are not charged at all.
• After the trial, the subscription renews automatically for the price and period shown at purchase, until you cancel.
• You can cancel anytime in Google Play → Subscriptions, or through "Manage subscription" inside the app, which opens the same page. Cancellation takes effect at the end of the current billing period; you keep Pro until then.
• Uninstalling the app does not cancel the subscription. Cancel it in Google Play.
• Refunds are handled by Google Play under its refund policy. We do not process payments and cannot charge you outside Google Play.
• Purchases are tied to your Google account. "Restore purchases" in the app re-checks that account.

Price and feature changes

We may change prices or what a plan includes for future purchases and renewals. Google Play notifies you of a price increase before it applies to your subscription, and you can cancel instead.

Acceptable use

Use the app on your own device, for personal, non-commercial purposes. Do not attempt to circumvent the subscription, reverse-engineer the app beyond what applicable law allows, or use it in a way that is illegal or harmful.

Availability and warranty

The app is provided "as is". Vibration behaviour depends on your device's hardware — some phones have no amplitude control and some manufacturers restrict background activity. To the extent permitted by law, we are not liable for indirect or incidental damages. Nothing here limits rights you have under mandatory consumer law in your country.

Privacy

See our Privacy Policy.

Contact

Questions about these terms: support@krillo.dev

Changes

We will post any changes to these terms at this same URL with an updated date.