UltraBoard vs YYサイレンアラート

This is WhiteBoard & BlackBoard, ChalkBoard App. Please touch the screen with Apple Pencil, stylus pen or your finger. - For iPad: Apple Pencil, stylus pen and your finger - For iPhone: Stylus pen & your finger *You can change the line color with buttons and the line width with slider. *You can save and categorize(make folder for) each note/board. Auto-renewal Subscription: *UltraBoard offers an auto-renewal subscription of $8.99/month. *Payment will be charged to iTunes Account at confirmation of purchase. *Subscription automatically renews unless auto-renewal is turned off at least 24-hours before the end of the current period. *Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. *Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. *Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. *Current subscription may not be canceled during an active subscription period. *You have also cancel your subscription at following web address: https://support.apple.com/en-us/HT202039 Privacy Policy : http://www.lisfee.com/privacy-policy.html Terms and Conditions : http://www.lisfee.com/about-rule.html

■「YYサイレンアラート」はこんな方にオススメです ・「サイレン音」が聞き取りづらい方 ・周囲の音の大きさが気になる方 ・周囲の音の情報を可視化したい方 ■検出できる音 ・表示と振動でお知らせする音 　サイレン、救急車、消防車、パトカー、車のクラクション、自転車のベル、火災報知器、インターフォン ・表示のみでお知らせする音 　話し声、歌声、音楽、悲鳴、叫び声、ガラスなどが割れる音、楽器（ギター、ドラム、ピアノ） ※本アプリは、端末のマイクを使って「サイレン音」などを判別します。 　検出できない場合があったり、誤って検出する場合があります。 　周囲の環境を目視確認するようにしてください。