Below is the top 50 paid applications in the Productivity category(data is pulled from iTunes). We also have a list for the best free productivity iPhone apps.

• Emoji Plus – Best Emoticon Keyboard! – Surpax Technology Inc.
• Pages – Apple
• Downloads – Downloader & Download Manager – Hian Zin Jong
• Week Calendar – UtiliTap
• Keynote – Apple
• Keynote Remote – Apple
• Numbers – Apple
• Tips & Tricks – iPhone Secrets (iOS 5 Edition) – Intelligenti Ltd
•  emoji iEmoji icons – get smiley, emoticon keyboard – SpiceLoop
• Voice To Apps – Voice To Messages, Email, Facebook and Twitter – AppSimo
• Launch Center – Schedule tasks and apps like Facebook, Twitter, etc. – App Cubby
• Passwords Plus – DataViz, Inc.
• Nightstand Central – Music Alarm Clock with Weather, Sleep Timer, and Flashlight – Thomas Huntington
• Animated Emoji | Say More In MMS and Email with Animations – Bearded Pony
• Atomic Web Browser – Full Screen Tabbed Browser w/ Download Manager & Dropbox – RichTech
• Shopping List – Einkaufsliste – hensoft
• Documents To Go® – Office Suite – DataViz, Inc.
• Group Text!, Mass Text / SMS on iPhone and Mass iMessage on All iOS5 Devices – Andrea Vettori
• Pro Ringtone Maker "for iPhone & iPod Touch" – The Best Free, Lite and Pro Edition for Mobile App of HD Photos, Video Camera, Messenger Ringtones, Color Effects Manager, Lock Screen Maker, my Live by Text Guide with your Friends in Facebook & Twitter
• GoodReader for iPhone – Good.iWare Ltd.
• Print Magic – Wellala, Inc.
• Best Alarm Clock – myNewApps.com
• HQ: To Do – Sleeping Giant Apps
• Secure Photo+Video : Private Photo Vault for Password Protect HD/HQ Images, Pics & TV Movies by Lock My Photos in Keeper Data Vault – Easy To Use Products
• My Measures and Dimensions PRO – SIS software
• Awesome Note (+To-do/Diary) – BRID
• Toodledo – To Do List – Toodledo
• Calendars – Google Calendar client – Readdle
• eWallet – Password Manager and Secure Storage Database Wallet – Ilium Software, Inc.
• iTranslate Plus ~ the universal translator – Sonico GmbH
• iStudiez Pro – iStudiez Team
• Slider Locker Lite – Zeeplox
• Agenda Calendar – App Savvy
• CalenGoo (sync with Google Calendar™) – Dominique Andr Gunia
• PomodoroPro – Peer Assembly
• Video Downloader Pro – Free Video Downloads & Media Player – Download & Play Any Video Format – Apps2Be
• iProcrastinate – Craig Otis
• Mercury Web Browser Pro – The most advanced browser for iPad and iPhone – iLegendSoft
• neu.Annotate+ PDF – neu.Pen LLC
• Battery Master Pro – iHandySoft Inc.
• CamScanner+ – IntSig Information Co.,Ltd
• SMS Locker – Text messages in safe! – New Modern Line
• Meeting Calc – Stotion
• TextBomb Pro – Fun At Work
• Car Minder Plus – Car Maintenance and Gas Log (MPG) – Josh Monroe
• Grocery Gadget – Shopping List – Flixoft, Inc
• Quickoffice® – Quickoffice, Inc.
• Awesome Calendar(+ToDos, Notes, sync with Google Calendar) – YunaSoft Inc.
• Animated Emoticons™ for MMS Text Message, Email!!! – touchme
• iFile (ファイルがどこでも読める)　v1.4 – SG GAME