PowerNap for iOS

Privacy, Terms & Imprint

Everything the PowerNap app does with your information, what you agree to when you use it, and who is legally responsible for it.

Last updated: 14 September 2026 · Applies to PowerNap version 1.0 and later

1. Privacy Policy

Controller under Art. 4(7) GDPR: HBJ-Solutions GbR, Haardter Str. 13, 67433 Neustadt an der Weinstraße, Germany · hello@hbj-solutions.com

1.1 The short version

PowerNap runs entirely on your iPhone. It has no user accounts, no servers of our own, no analytics, no advertising and no tracking of any kind. We do not receive your motion data, your nap history or any identifier from the app, because the app never sends them anywhere.

1.2 What the app processes, and where

DataWhyWhere it lives
Accelerometer and device-motion readings To estimate the moment you fall asleep and to detect the phone falling in Dalí Drop mode Processed live in memory on your device and discarded immediately. Never written to disk, never transmitted.
Your nap history (start and end time, mode, estimated sleep onset, movement summary, rest score) To show you your own history and statistics inside the app Stored locally on your device only. Deleted when you delete the app.
Your settings (nap length, sounds, sensitivity, chosen icon) So the app remembers how you like it Stored locally on your device only.
Purchase status for PowerNap Pro To unlock the features you paid for and to restore them on your other devices Held by Apple and read by the app through Apple's StoreKit. We never see your payment details.

Because none of this data reaches us, there is no legal basis for processing by us to declare, no recipients, no transfers to third countries by us, and no automated decision-making or profiling.

1.3 Device permissions

  • Motion & Fitness — required for Smart Nap and Dalí Drop. Without it, PowerNap still works as a plain timer.
  • Notifications — used only to send you the wake-up alert if iOS suspends the app while you sleep. Optional.

You can withdraw either permission at any time in iOS Settings → PowerNap. Withdrawal does not affect the lawfulness of any processing that already took place on your device.

1.4 Apple's role

The app is distributed through the Apple App Store, and PowerNap Pro is sold by Apple as a one-time in-app purchase. Apple acts as its own controller for the data it collects when you download the app, make a purchase, or send us a crash report through Apple's own tools. That processing is governed by Apple's Privacy Policy, not by this one. If you opt in to sharing analytics with developers in iOS, Apple may make aggregated, anonymised crash and usage statistics available to us; these cannot be linked to you.

1.5 Your rights under the GDPR

You have the right to access (Art. 15), rectification (Art. 16), erasure (Art. 17), restriction (Art. 18), data portability (Art. 20) and objection (Art. 21), as well as the right to lodge a complaint with a supervisory authority (Art. 77).

In practice: because your data never leaves your device, we hold nothing about you and cannot identify you. You can exercise erasure and portability yourself at any time — clear your history in the app, or delete the app, which removes everything it stored. If you email us, we will of course process that email in order to reply to you (Art. 6(1)(f) GDPR, our legitimate interest in answering support requests); we keep support correspondence no longer than necessary.

The supervisory authority responsible for us is the Landesbeauftragte für den Datenschutz und die Informationsfreiheit Rheinland-Pfalz, Hintere Bleiche 34, 55116 Mainz, Germany.

1.6 Children

PowerNap is not directed at children under 13 and does not knowingly process their data. As no data is collected, there is nothing for us to delete on request.

1.7 Changes

If the app ever starts processing data differently, we will update this page and the "last updated" date above before the change ships.

2. Terms of Use

These terms govern your use of the PowerNap iOS application ("the app") provided by HBJ-Solutions GbR ("we", "us"). By installing or using the app you agree to them. They apply in addition to Apple's Licensed Application End User License Agreement, which governs your licence to the app itself; where that agreement and these terms conflict on the licence, Apple's agreement prevails.

2.1 Your licence

We grant you a non-exclusive, non-transferable, revocable licence to use the app on Apple-branded devices you own or control, for your own personal, non-commercial purposes. You may not reverse engineer, decompile, resell, rent or redistribute the app, except to the extent that mandatory law expressly permits it.

2.2 PowerNap Pro

  • PowerNap Pro is a single, one-time purchase. It is not a subscription and nothing recurs.
  • The purchase is tied to your Apple Account and can be restored on any device signed in to that account using "Restore purchases" in the app's settings.
  • Payment is charged to your Apple Account at confirmation of purchase. The price shown in the app is the price Apple charges in your storefront, including any applicable tax.
  • Refunds are handled exclusively by Apple through reportaproblem.apple.com. We cannot issue refunds for App Store purchases ourselves.

Right of withdrawal (consumers in the EU): purchases of digital content made through the App Store are concluded with Apple as the merchant of record, and Apple's own withdrawal and refund terms apply to them. Where a statutory 14-day right of withdrawal exists for digital content, it may lapse once the content has been made available to you with your express consent — Apple obtains that consent at the point of purchase.

2.3 What the app is, and is not

PowerNap estimates when you fall asleep from movement measured by your iPhone's accelerometer. This is an estimate based on a single, indirect signal. It can miss a sleep onset entirely, and it can be triggered by something that is not sleep at all — a passing lorry, a pet on the bed, a phone knocked off a nightstand.

PowerNap is not a medical device. It is a comfort and productivity tool. It does not diagnose, treat, cure, monitor or prevent any disease or condition, it is not a sleep tracker in any clinical sense, and it must never be used as a substitute for professional medical advice. If you are concerned about your sleep, speak to a doctor.

2.4 Safety

  • Do not rely on PowerNap as your only alarm for anything with real consequences — a flight, an exam, a shift. Set a second, independent alarm.
  • Never use the app, and in particular Dalí Drop mode, while driving, cycling, operating machinery, or anywhere a moment of inattention could hurt you or someone else.
  • In Dalí Drop mode your phone is meant to fall. Use it over a bed, a rug or a cushion — not over a hard floor, stairs, water, or anything breakable. Damage to your device or surroundings is your responsibility.
  • The app needs to keep running to wake you. PowerNap plays the alarm through the ring/silent switch, but iOS does not allow any app to raise your media volume: if that volume is at or near zero, the alarm will be inaudible. PowerNap warns you before a nap starts and also vibrates and sends a notification, but you should turn the volume up yourself. If iOS closes the app or your device runs out of battery, the alarm may not sound at all.

2.5 Liability

We are liable without limitation for damage caused intentionally or by gross negligence, for injury to life, body or health, and under the German Product Liability Act (Produkthaftungsgesetz). For slight negligence we are liable only where we breach a material contractual obligation — one whose fulfilment makes proper performance of the contract possible in the first place and on whose fulfilment you may regularly rely — and in that case only for foreseeable damage typical of this kind of contract. Any further liability is excluded. This allocation of risk reflects the fact that the app is a low-cost consumer tool with no guarantee of detection accuracy. Your statutory rights as a consumer are not affected.

2.6 Availability and changes

We may update, change or discontinue the app or individual features. We will not remove a feature you have already paid for without good reason; if we discontinue PowerNap Pro features permanently and that is unreasonable for you, contact us.

2.7 Governing law and jurisdiction

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, this choice of law does not deprive you of the protection of mandatory provisions of the law of your country of habitual residence. The European Commission provides a platform for online dispute resolution at ec.europa.eu/consumers/odr. We are neither obliged nor willing to participate in dispute resolution proceedings before a consumer arbitration board.

2.8 Contact

Questions about these terms or the app: hello@hbj-solutions.com. We aim to reply within 24 hours on weekdays.

3. Health & safety notice

Short daytime naps suit most people, but not everyone. Napping can interfere with night-time sleep, and persistent daytime sleepiness can be a symptom of a condition that deserves proper attention — including sleep apnoea, narcolepsy, depression, anaemia or a thyroid disorder.

If you regularly feel you cannot get through the day without sleeping, if you fall asleep involuntarily, or if your sleep is disturbed over a long period, please see a doctor. PowerNap cannot detect any of this and is not designed to.

Hypnic jerks — the small involuntary twitch PowerNap looks for — are a normal, harmless part of falling asleep for most people. PowerNap detecting or not detecting them tells you nothing about your health.

4. Imprint (Impressum)

Information according to Sec. 5 German Telemedia Act (TMG)

HBJ-Solutions GbR
Haardter Str. 13
67433 Neustadt an der Weinstraße
Germany

Contact

Email: hello@hbj-solutions.com

VAT identification number

VAT identification number in accordance with Sec. 27 a of the German Value Added Tax Act:
USt-IdNr. DE462565189

Responsible for the content according to Sec. 55 (2) RStV

Ben Grégory Seiler, Julius Maximilian Spindler
Haardter Str. 13, 67433 Neustadt an der Weinstraße, Germany