ColorSchemer
Say you want your wedding colors to include lilac, but you can’t decide on the right shade—or whether the complementary color should be cream or gray. This app finds the most compatible colors from more than one million different palettes. You can even pull a swatch from a photo, and it’ll give you suggestions for hues that area perfect match. (free; iTunes)
Appy Couple
This tool takes all the offerings of traditional planning websites to the next level. Couples can keep guests in the know about event schedules, venue locations, and travel options. They can also introduce the wedding party and send crucial last-minute updates, such as any travel alerts for the big day. ($49; appycouple.com)
Super Planner
Initially created for professionals, but now loved by couples tackling weddings all on their own, this tool calculates venue capacity, catering requirements, and even dance-floor size, making it a snap to know how many hors d’oeuvre to order or bartenders to book. ($9.99; iTunes)
Wedding Registry
This is the fun part, right? Not when you’re trying to manage wish lists at a handful of retailers. Eliminate the headache by organizing all your gifts in one place (it’s shareable, so it’s easy for your guests to use). Add items from any store by scanning its barcode as you browse or select products online to include in your registry. It automatically categorizes gifts too. (99 cents; ilistapps.com)
Wunderlist
This list-maker tracks a million things at once. In one spot you can create, organize, and sort tasks, and set due dates and reminder notifications. You also have the option of looping in your bridal party to brainstorm ideas and adding your spouse-to-be when it’s time to delegate. (free; iTunes)
Pro Wedding Planner
Toss the Post-its and the hand-drawn tables. Seating arrangements are a breeze with this tool. Design your floor plan by uploading a venue photo. Its Augmented Reality view lets you visualize the space as it actually is (odd configurations and all). Import a table map and create a drag-and-drop seating chart according to real-time guest status. You can also set up a wedding time line, plan your budget, and maintain various lists. ($4.99, plus $1.99 for a one-year subscription, or 99 cents for three months; iTunes)
CapsuleCam
Replace those archaic disposable cameras with this app. After the wedding, guests are invited (via e-mail or Facebook) to upload their digital photos to one master shareable album (your photographer can upload photos here too). Best of all, guests can download their favorite hi-res images at no cost or purchase prints so you don’t have to do it for them. (from $99 for up to 75 guests; trycapsule.com/weddings)