Is there a Bitcoin alert service that monitors the price and alerts the user when price dips or rises by a percentage base? Say I want to monitor the btc price if it rises by 5% and have it email me.
You can use coinzalert.com to monitor the Bitcoin and altcoin market.
I have never used it personally, but I have a lot of good things of the Bitcoin Paranoid app. It's supposed to alert you on price changes.
Here's the bitcointalk thread: https://bitcointalk.org/index.php?topic=178391.0
Currently I'm using vertfolio https://vertfolio.com, it’s new but simple and easy to use, they have alerts based on the percent of the change ( daily and hourly ).
Try https://www.kryptolabs.io its for Facebook Messenger pretty neat and of course the other ones mentioned here.
I use Cryptocurrency Alerting. It has percentage price alerting, but it also has alerts for when coins get added to new exchanges, wallet transaction monitoring, and bitcoin mempool monitoring.
There are plenty, but I would recommend Blockfolio, an Android app. You get the notification on the phone itself but it supports tons of coins and different exchanges to pick from.
On top of that it has charts and news (but are non-obtrusive if you don't need them).
I created Coindera just for that. Some features:
- Price Point Alerts - when the BTC_USD buy price hits $10,000 alert me
- Percentage Change Alerts - when BTC_USD buy price increase more than 5% within 5 minutes alert me
- Regular Updates - every 30 minutes send me the price of BTC_USD
- 30+ markets
- 11k coins
I use for cryptocurrency price alerts Crypto Alert. Here you can specify both the specific price and the percentage change (By the way, there is a cool affiliate program here)