TERMS OF USE — AMPLIA

Last updated: 25 September 2026 · Amplia — an Octo8 app · Android

By downloading or using Amplia you accept these terms. If you do not accept them, please do not use the app.

You need to be old enough to hold your own Google account in your country to use the app. Amplia is not directed at children.

1. LICENCE

The app is licensed, not sold. Because you obtained Amplia from Google Play, the Google Play Terms of Service apply; the terms on this page apply in addition to them.

Octo8 grants you a non-exclusive, non-transferable licence to use Amplia on Android devices you own or control, for personal, non-commercial use.

2. HEARING AND EQUIPMENT

This is the most important clause on this page. Amplia makes audio louder, and loud audio can permanently damage your hearing.

You choose the level. The dial runs from 0 to 100 %. Up to 75 % — the whole free range — a limiter and a compressor are always in the chain and hold the loud parts back. Above 75 % is the Maximum zone: the sound is denser there and may distort a little, by design. A limiter controls distortion. It does not prevent hearing damage.

• The listening level Amplia shows is an estimate, not a measurement. Amplia deliberately does not ask for microphone permission, so it cannot measure the actual sound pressure at your ear. The estimate is derived from your device volume, the gain applied and the typical behaviour of the connected output. Treat it as a guide, not as a reading.
• Exposure tracking follows the WHO / ITU-T H.870 guideline. That is a general public-health guideline, not personalised advice. Amplia is not a medical device; it does not diagnose, treat or prevent any condition. If you have concerns about your hearing, see a professional.
• Boosted audio can also damage speakers and headphones — small or old ones especially. Sustained high gain, and gain used on top of a high system volume, are the usual causes. The equipment you play through is your responsibility.
• Do not use levels that stop you hearing your surroundings when hearing them matters — driving or cycling, crossing a road, or working near machinery.

3. WHAT THE APP CAN AND CANNOT DO ON YOUR DEVICE

Android does not let every device apply audio effects to the system-wide audio mix. Whether this works on your phone is determined by the manufacturer's audio implementation, not by us.

• Where the global session is available, Amplia's boost and equalizer apply to whatever is playing.
• Where the manufacturer blocks it, Amplia says so plainly on the boost screen and offers its own player, where the effects are guaranteed to apply to the files you play in it.
• The dial shows where it is set, not a promise of how much louder anything sounds. If your device refuses part of what you asked for, the dial stops where the device stopped, and the gain it actually applied is shown in decibels when "Show technical values" is on. We never display a number the audio chain did not produce.
• We do not promise any particular loudness increase on any particular device, in any particular app.

Device limitations of this kind are not a defect in the app. Refunds are handled under Google Play's refund policy.

4. AMPLIA PRO

• Amplia works without paying. The free tier includes the dial up to 75 % with the limiter always on, a preview of the Maximum zone (up to three previews a day, up to five minutes each), a 5-band equalizer with three presets, one preset of your own, the in-app player, and the full hearing-safety features. Hearing safety is free at every tier and will stay that way.
• Amplia Pro is offered as an auto-renewing subscription — weekly, monthly or yearly — and, where it is offered, as a one-time lifetime purchase that does not renew. It unlocks the Maximum zone (75–100 %) without a daily limit, the 10-band equalizer and all 14 presets, unlimited saved presets, bass boost, 3D virtualizer, dialogue clarity and night mode, per-output profiles, and the home-screen widget and Quick Settings tile.
• The monthly and yearly plans start with a 7-day free trial. The weekly plan has no trial. Whether a trial applies to you is shown on the subscription screen before you buy.
• Payment is charged to your Google Play account on confirmation of purchase. After any free trial ends, the subscription renews automatically at the current price unless you cancel at least 24 hours before the end of the period. Two days before a free trial's first charge, Amplia sends you a reminder naming the date and the amount.
• Manage or cancel the subscription in Play Store → your profile → Payments and subscriptions → Subscriptions, or from the Manage subscription row inside the app. Deleting the app does not cancel the subscription.
• Prices are shown in the app for your own region and may change; if a price rises, Google asks for your consent before charging it.
• Purchases restore to your other devices with "Restore purchases" in the app, as long as you use the same Google account.
• No advertising. Amplia has never carried ads and will not. Nothing interrupts you while you are adjusting the sound.

5. ACCEPTABLE USE

Do not reverse-engineer the app, do not attempt to defeat or bypass its security or its licence checks, and do not use it unlawfully. Do not use it to produce audio intended to harm anyone's hearing or equipment.

6. YOUR DATA

Amplia has no accounts and no sign-in. Your settings, presets, profiles and exposure history stay on your device — the detail is in the Privacy Policy. Backing them up is your responsibility; deleting the app deletes them. Android's automatic cloud backup is deliberately switched off for Amplia, so those settings are not copied to Google Drive.

7. NO WARRANTY AND LIMITATION OF LIABILITY

The app is provided "as is", without warranty of any kind, to the extent permitted by law.

To the maximum extent permitted by applicable law, Octo8 is not liable for indirect, incidental or consequential damages arising from your use of the app — including damage to hearing or to audio equipment resulting from levels you chose, and the loss of settings or presets.

Nothing in these terms limits liability that cannot be limited by law, including liability for death or personal injury caused by negligence, or for fraud. Mandatory consumer-protection rights you have where you live are not affected.

8. CHANGES

We may update these terms; the current version always sits at this address with its date. Continuing to use the app after a change means you accept it.

9. GOVERNING LAW AND CONTACT

These terms are governed by the laws of the Republic of Türkiye, without regard to conflict-of-law rules. Questions: support@octo8.app. A person answers.