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

Version 1.50

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

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

Nerds_from_Space ,

Designed to promote fraud????

Before I even had a chance to read terms of use I had to install the app which seems to state the user agrees to the terms sight unseen. Is this like another voip service company where anyone can hack my account password and leave me liable for calls I didn't make before I even find out my account was hacked?

I can't find anyway to cancel my account. The whistle website is useless in providing a means to cancel the terms and agreements. The user is provided with a phone number for the app when an account is setup and there seems to be no way to cancel it and I could not find anyway to get contact info for the responsible party as I most certainly disagree to tyrants using the law for their own selfish purposes.

I am apalled that Apple does not require the terms for software contracts to be readable before downloading software especially for voip services! Why do these term conditions have to be hundreds of pages long anyways? Do they think only lawyers download apps?

What I needed was an explanation of what the software does, that I need to be in the USA to make free calls etc etc. Now I feel like I've been blackmailed into installing software before I can even find out what it does, how it works, or have the option to cancel contract terms with a single click.

I want out of this contract, software etc. Too bad it's not as easy as deleting the software to cancel all services!

I am very pissed at the liberty which some companies take! I should also have the right to easily cancel all obligations and contracts whenever I want. Too bad this isn't allowed!

Shakier S ,


I've added credit to my account three times in the last few hrs and it's not showing up in my account ... Yet money was taken from my account ... What the hell !!!!! I would like my credit restored .. I'm pissed !!!

Ahmednajar ,


Very bad application, & very bad quality .
I do not recommend .


Vail Systems, Inc.
9.4 MB

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



Age Rating
Rated 4+
© 2009-2015 Vail Systems, Inc.
In-App Purchases
  1. $0.99US Whistle credit $1.39
  2. $9.99US Whistle credit $13.99
  3. $1.99US Whistle credit $2.79


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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