One is a stripped down version for the iPhone called TurboTax SnapTax. It's limited to taxpayers who don't have any children or deponents, don't own a home, have income only from a W-2, interest, or unemployment, and make less than $100,000 a year. It includes state and federal e-filing for a $24.99 in-app purchase and is quick and easy.
The other is TurboTax for iPad, a full-featured version of TurboTax, even including the Home & Business version for self-employed payers. Filing fees are all paid via In-App Purchase, with federal returns starting at $49.99 and state returns an additional $39.99. Users have the option to e-file or print out their returns the old fashioned way.
The New York Times' Gadgetwise blog was very impressed with TurboTax for iPad:
Long story short — it was a dream. The app is basically a giant questionnaire, in which you answer hundreds of questions about your financial state of affairs. I had all the necessary paperwork (well, almost — tracking down the Social Security number of my 1-year-old son took about 30 minutes): W-2s, property-tax statement, mortgage interest statement and a 1099 for some non-retirement investments.
The TurboTax app is well designed and well written. It dispenses with jargon and uses plain English. For example, sometimes you are asked a question that sounds odd; the app will point out that this kind of situation is uncommon, reassuring you that it may not apply to you. Filing, payments and refunds can all be handled electronically — which is nice because not only does it cut down on paper, you get your money (if you’re getting a refund) faster.
TurboTax for iPad is a free download from the App Store. [Direct Link]
TurboTax SnapTax for the iPhone is a free download from the App Store. [Direct Link]