EARBOOST for better listening

The app is compatible with commercially available Bluetooth earphones and wired earphones, letting you use your smartphone and earphones like a hearing aid.
■Compatible with commercially available earphones
The app is compatible with commercially available Bluetooth earphones and wired earphones, letting you use your smartphone and earphones like a hearing aid.
■Easily adjust to your usage context
With ambient noise suppression and volume control, you can adjust what you hear to different situations, such as conversations or movies.
■Adjust the sound to what you are hearing
Set amplification/reduction levels for the low, medium, high, and super high tone ranges. This lets you achieve a sound tailored to your ears.
■Adjust left and right ears separately
Adjust the sound to the differences in your left and right ears.
[Recommended for]
■Those who feel they have started having trouble hearing
■Those who don't feel a need for a full hearing aid
■Those looking to hear distant conversations and small sounds better
[Key features]
■Easy steps to performing a hearing test
The hearing test is simple: just tap the button when you hear a sound. This lets you perform a hearing test at 125, 250, 500, 1000, 2000, 4000, and 8000 Hz for the left and right ears.
■View audiometry results in a graph
After taking the test, check your results in a graph format.
■The app automatically adjusts audio based on measurement results.
The app automatically amplifies frequencies that are difficult to hear, using the results of your measurements.
■Save multiple audio settings
You can save multiple sound settings that you've adjusted to your preferences. You can then switch between these saved preferences depending on the usage context or your desired sound.
[Pricing]
The "hearing aid" function, which is the main feature of this app, can be used by subscribing to one of the following usage tiers.
- Annual payment
- Monthly payment
- Weekly payment
*There is no difference in functionality among these tiers.
The hearing measurement functionality is available free of charge.
■Automatic recurring billing
If you do not cancel automatic renewal within 24 hours of the scheduled renewal date, the cycle will automatically renew.
■Unsubscribing
To cancel, Select Settings > iTunes Store and App Store > Subscriptions > Ear Boost > Cancel Subscription.
■Restoring purchases
If you have an existing subscription, you can restore it via the "Restore purchase information" section in the app's menu.
■Cancellation
Canceling a subscription can only be done by the methods above.
■Terms of Use
https://earboost.jp/enTermsOfService.html