Trip Boss Evolution – from Palm to iPhone, a behind-the-scenes look at the design process

Recently we released phase 1 of Trip Boss travel manager for iPhone. We've been working towards its release since the AppStore opened 2-1/2 years ago in 2008. Although we released other iOS apps prior to Trip Boss, with each app we learned something new that we could use in Trip Boss. Full time focus on Trip Boss took about 7 months and we expect another 3-4 months to release the remaining phases, or “modules”. In comparison, Trip Boss for the PalmOS, the initial release, took over a year to write. Some of the subsequent additions and enhancements (such as itinerary) took another year each to release. This post will show you some of the history behind Trip Boss' design and some of the insight behind the design decisions for the iOS release.

Trip Boss main screenshot

Building libCURL for iOS 4.2

I recently had to rebuild libCURL for iOS4.2 because I was getting crashes in the simulator related to libCURL which were not present in iOS4.1:

Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
close$UNIX2003 called from function Curl_getaddrinfo in image TripBoss.
If you are encountering this problem running a simulator binary within gdb, make sure you 'set start-with-shell off' first.
Program received signal: “SIGABRT”.

Serving Sizer Pro for iPad updated - new name, new icon, new features

Serving Sizer Pro Recipe Cards for iPad--your recipes, organized for cooking, update is now live in the iPad AppStore.
Serving Sizer Pro Recipe Cards for iPadAvailable on the AppStore

We've added several new features:

Trip Boss for sale on AppStore Nov. 10

Trip Boss travel manager, Expense & Budget edition, will be on sale on the AppStore on November 10th, 2010. To see a preview, please visit our website.

Trip Boss is coming!

Just a quick post to let everyone know that Trip Boss for iPhone IS in the works. We are working hard to release it this fall. We'll keep you posted as we have screenshots and other goodies available. In the meantime, please feel free to "like" us on Facebook and follow Trip Boss on Twitter (for the latest news).

Review App Links, sorted out

A few days ago I had a discussion on twitter with a few developer friends about links to the review section on the AppStores from within apps. Since people are prompted to "review on delete," the number of reviews can be slanted towards one-star, especially for 99c "throwaway" apps. No mechanism currently exists to prompt users who use and find value with their apps to rate and write reviews. So, many developers have added "Review this app" links inside their apps.

Serving Sizer Pro for iPad - recipe converter cookbook

Recipe cards for your iPad! Creative Algorithms is pleased to announce our first iPad app: Serving Sizer Pro for iPad - recipe converter cookbook now available on the AppStore.
Serving Sizer Pro for iPadAvailable on the AppStore

Lots of screenshots available on our main website, along with a walkthru on how it works. It has all the goodness of the iPhone version: scales by serving size, easy entry of ingredients, no website access required (save directly to iPad), but in a whole new custom format for iPad.

Serving Sizer Pro ingredient entry

Serving Sizer Pro Recipe Converter and Cookbook Now on AppStore

We're pleased to announce that our Serving Sizer Pro Recipe Converter and Cookbook app is now available on the AppStore!
Serving Sizer ProAvailable on the AppStore

Serving Sizer Pro™ does what your regular cookbook can't--instantly scales recipes based on number of guests coming for dinner! With Serving Sizer Pro you can convert entire recipes from one serving size to another. Great for scaling for crowds, or down-sizing for 1-2 person meals. Save recipes to re-scale later. Also converts between Metric and US measures so you can cook from recipes from other countries that use measuring tools different than what you're used to.

We've also included a few of our favorite recipes to see how it works or to make for yourselves. Enter your own recipes easily--over 500+ ingredients pre-loaded and beautifully designed sliders for choosing amounts and units. More details on our website. Enjoy!

Serving Sizer Pro recipe card screenServing Sizer measurement entry

Tips for New iPhone Developers #2 - Promo Codes: Expiring and Resetting Count

Here's another tip for newbie iPhone developers, concerning how promo codes work.

You get 50 promo codes per update, i.e. each time you submit a new binary. When you request promo codes, they expire in 4 weeks. So, don't request promo codes until you need them; you are allowed to request them one at a time, if necessary. Unrequested promo codes do not expire.

Date Wheel--Not Your Run-of-the-Mill Date Calculator

Date Wheel is not your usual date calculator. While it may have been said that "anyone can write a date calculator," not everyone can write a GOOD one, and we like to think ours is the best. Date Wheel has won awards in the past and has been recently nominated in the 2009 Best App Ever Awards, sponsored by 148apps, in the category of "Best Time Management". This post was inspired by Dan Grigsby's challenge over at Mobile Orchard and will spell out some key features and design insight in an award-winning app that has celebrated a decade in existence. Read on to see if you agree and, if so, please nominate us by Dec. 31, 2009, and/or vote for us in January if we make the cut. Thanks!

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