30 iPhone Apps with Sexy Interfaces

The iPhone is a wonderfully designed device, sporting sleek curves and oozing minimalism. Fortunately, the great design doesn’t need to stop there. Ever since the App Store went live, we’ve seen some incredibly attractive software released for the platform.

Whether you’re looking for a robotic unit converter, a realistic app for reading novels, or a intuitive Twitter client – this roundup has something for you. Each application puts design first, offering a fantastic user experience.

You can find a huge collection of other useful free iPhone apps over at iPhone.AppStorm, along with another big collection of 30 Gorgeous iPhone App Interfaces & Icons.

Weightbot ($1.99)

Whether you are trying to lose (or gain) a few pounds, tracking your weight has never been more fun. Set your goal weight, record your weight at any interval (one weight per day max), view your BMI, and see your progress on a beautiful graph.

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Weightbot

Weightbot

Convertbot ($0.99)

Convertbot is a unit conversion robot. Convert currency, length, mass, time and much more in an exciting new way.

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Convertbot

Convertbot

Ego ($1.99)

Ego gives you one central—and lovely—location to check web statistics that matter to you. With support for Feedburner, Google Analytics, Mint, Squarespace and Twitter.

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Ego

Ego

LittleSnapper ($2.99)

Take a photo, snap a webpage, or choose an existing image from your photo album and share it online via QuickSnapper. Add tags, titles, descriptions, and ratings to your snaps before sharing them.

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LittleSnapper

LittleSnapper

iStat ($1.99)

Remotely monitor CPU, memory, disks, temperatures, fans, uptime and load averages… from your iPhone. You can also see your iPhone’s stats for memory, disk space, WiFi and Cell IP addresses, uptime & load averages, plus view and email your iPhone’s Unique ID and MAC address.

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iStat

iStat

Beats ($1.99)

Working out the BPM (beats per minute) of a song couldn’t be simpler—just tap along with the song. Unlike some other counters, Beats uses intelligent averaging that hones in on the correct BPM the more you tap.

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Beats

Beats

Cities ($0.99)

If it’s 9 PM, Friday 20 June in Melbourne, Australia, what time and day is it in Trieste, Italy? Cities lets you travel the world to see what time it was, is or will be for any city on any date or time, from the perspective of any timezone (including the one you’re currently in).

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Cities

Cities

Phases ($0.99)

Phases is a beautifully crafted little app that shows you all kinds of useful information about the moon (and a little bit about the sun).

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Phases

Phases

Groups ($2.99)

Groups takes contacts group management to a totally different level. With a highly innovative user interface, you get to manage your contacts the iPhone way; drag them, drop them or trash them.

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Groups

Groups

Tea Round (Free)

Tea Round rapidly settles thirst-based argument by deciding who makes the tea. Whether in the office, or at home.

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Tea Round

Tea Round

Cha-Ching ($2.99)

Cha-Ching Touch for iPhone and iPod Touch delivers Cha-Ching’s renowned ease of use and simple, clear interface right to the palm of your hand. With easy to use features like location based transaction entry and beautiful, easy to read budgets, you will never be without your finances again.

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Cha-Ching

Cha-Ching

Twitteriffic (Free)

Twitterrific is a fun application that lets you both read and publish posts or “tweets” to the Twitter community website. The application’s user interface is clean, concise and looks fantastic on the iPhone.

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Twitteriffic

Twitteriffic

Tweetie ($2.99)

Tweetie is a fast, full-featured Twitter client. It offers everything you’d expect – from your timeline to trends – all with an incredibly well polished user interface and a great experience.

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Tweetie

Tweetie

Tags ($2.99)

Tags lets you browse delicious.com bookmarks in style. Explore your bookmarks with the animated tag cloud or discover new websites in your network, inbox or popular bookmarks.

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Tags

Tags

Where To? ($2.99)

One of the best features of the iPhone is that it’s able to determine your current location, but missing is something that’s become a staple of most GPS systems: a quick way to find points of interest around you. Where To provides that in a slick, intuitive user experience.

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Where To?

Where To?

Classics ($0.99)

Escape into some of the greatest stories ever written. Classics features some of literature’s finest masterpieces, and looks and feels like a real book!

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Classics

Classics

Tipulator ($0.99)

Take the guesswork out of restaurant tipping. Enter the bill amount, select a percentage, and Tipulator will calculate the tip. And it’ll split the check among friends.

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Tipulator

Tipulator

Groceries ($0.99)

Say goodbye to boring grocery planning and chaotic shopping lists. Simply select items from hundreds of ready-made groceries, find specific brands from thousands of products or add new items in an instant. Optionally organize your items by aisle and let Groceries navigate you through the supermarket.

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Groceries

Groceries

Satisfaction Remote ($1.99)

Get Satisfaction (getsatisfaction.com) is a People-Powered Customer Service community that helps people to get the most from the products they use, and where companies are encouraged to get real with their customers.

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Satisfaction

Satisfaction

Measures ($0.99)

Yet another unit converter utility… But the one which is really easy to use. Besides different conversion types, it gives you daily updated currency exchange rates. Assign the most frequently used conversions to the favorite buttons.

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Measures

Measures

Guitar Toolkit ($9.99)

Essential guitar utilities, including an amazing flexible tuner and a library of over 1500 chord variations, all on your phone.

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Guitar Toolkit

Guitar Toolkit

Inquisitor (Free)

Inquisitor Mobile Search speeds up your search like no other mobile search application. It has an award winning design, and invaluable for research on-the-go.

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Inquisitor

Inquisitor

Night Stand ($0.99)

Night Stand displays a beautiful, vintage LCD clock on your iPhone or iPod touch. You don’t have to buy a night stand clock for your bedroom anymore: you get a gorgeous alarm clock and right under your fingertips.

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Night Stand

Night Stand

Things ($9.99)

Things is a beautifully focused and amazingly intuitive task manager. Other task managers either oversimplify or are too difficult to use. Either way you are not getting stuff done. You can even sync wirelessly with the desktop version of Things using Wi-Fi.

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Things

Things

Outpost ($12.99)

Outpost allows people to manage their projects with Basecamp®, an online project management app from 37signals. Basecamp is widely acclaimed for its simplicity and effectiveness in organizing teams.

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Outpost

Outpost

Birdhouse ($3.99)

Ever think of something for your Twitter that you don’t want to post right away? Birdhouse is the perfect place to put it. Birdhouse won’t replace your favorite iPhone Twitter client, it’ll add to it. Put Birdhouse right next to your Twitter client and use them together.

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Birdhouse

Birdhouse

Cocktails ($2.99)

Cocktails lovingly presents over 2,000 contemporary and classic mixed drink recipes drawn from modern and classic sources. Categorized in all manner of useful ways.

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Cocktails

Cocktails

Facebook (Free)

The app makes it easier to connect to people on-the-go, chat to your friends, and check out all the latest photos.

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Facebook

Facebook

Wimbledon (Free)

A classic Wimbledon interface for checking up on tennis scores, viewing live video, and checking up on the progress of the competition.

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Wimbledon

Wimbledon

Bento ($5.99)

Bento for iPhone and iPod touch is the portable version of the wildly popular personal database from FileMaker – that’s easy to use as your iPhone! It’s never been easier to organize all the details of your busy life – in one iPhone application that works seamlessly with Bento 2.

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Bento

Bento

Conclusion

I hope that you’ve found a few apps that not only look good, but help you out in one way or another. I’m a huge fan of wonderful design on the iPhone, and would love to hear about the great looking applications you use!