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Whistle Phone

By Vail Systems, Inc.

This app is only available on the App Store for iOS devices.


Whistle Phone is an app for calling or texting your family and friends for free over Wifi or your mobile data plan.

On your own customized phone number, you can make and receive unlimited texts from high-definition and secure calls to other Whistle users. You can also make inexpensive calls to landlines and cell phones or text anyone in the US for a fraction of your regular rate when you go Premium.

And, if you need to make calls anywhere in the world, we've got extremely low rates.

Thought about using your iPad or Pod Touch as a phone? We can help you out. And we work pretty darn well on the iPhone too.

(For the iPod Touch before 4th gen, you'll need headphones and a microphone to use Whistle.)


- Contact integration has you texting in no time

- Secure, encrypted calling prevents snooping on public wireless networks

- High-Definition calls to other Whistle clients make your calls sound as clear as the music you hear on your iPod

- If you can't get to a call, we'll send it to your Whistle voicemail

- Send your Whistle calls to any phone number via our call forwarding service for a low per-minute rate

- Has built-in integration with your iPhone, iPod Touch or iPad Contacts

- Push notifications for incoming calls

- Includes two-line calling features, including call waiting and three-way calling

- Allows Whistle calls to continue in the background on speakerphone (iPhones with iOS 4+ only)

- Use Whistle as a client with any 3rd party SIP service

- Integrates with Apple Headphones: click the center button on your Apple headphones to answer an incoming call or disconnect a call in progress or double click the center button to switch between calls on different lines (requires iOS 4+)

Please direct comments on bug fixes or feature requests to either or to our support site at We really do want to hear from you and we've set up these forums to address your thoughts directly.

* Check out Whistle Phone for the Mac on the Mac App Store *

What's New in Version 1.50

- Fixed issue with starting Whistle in landscape mode on iPads
- Internal networking updates
- Assorted minor bug fixes


iPhone Screenshot 1
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iPad Screenshot 1
iPad Screenshot 2

Customer Reviews

♦️one star for useless whistle phone 👎🏻

Google Voice will NOT re-verify my WHISTLE phone, making it unusable on my iPad Air. It was okay on iPad in 2013. Not now. Whenever I try to verify with Google voice, my whistle phone will not ring. If I dial my whistle number from my local landline phone, it rings OK on my iPad. I've tried 10 times in the past year to verify my Whistle number with my Google Voice. No joy. This app is now useless to me. The only reason I had ever used Whistle is to provide inexpensive VOIP for my iPad with Google Voice. $1 per year would be ok. $10 per month is ridiculous! I am deleting this app. Vail fail! 👎🏻👎🏻👎🏻👎🏻👎🏻

★✰✰✰✰ One star. Deleted. Why?

It seems that Vail Systems has gotten too greedy and careless. This app wants me to pay $10 per month, and it doesn't even work.

Deleted, after a few days, and many tries, could not send a single text message. Also, it will not verify as one of my Google voice phone numbers.


★✰✰✰✰ One star. Deleted. Why? Won't SEND text. Voice okay. {{ iOS 9.3.1 on iPhone 5, 16GB Wi-Fi. }}


Worst App Ever

be ware i bought credit and did not get my service dont use them at all i am deleting my account and this app off my phone to i payed money for time and got no mins

Whistle Phone
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Social Networking
  • Updated:
  • Version: 1.50
  • Size: 9.3 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. $9.99US Whistle credit$9.99
  2. $0.99US Whistle credit$0.99
  3. $4.99US Whistle credit$4.99
  4. $1.99US Whistle credit$1.99
  5. $7.99US Whistle credit$7.99

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