iKnow: 100 Best Reference Tools for Your iPhone

Your iPhone can play games, store loads of contact information, take pictures, play music, and of course make and receive phone calls. But it’s also a valid research and reference tool for students, and when equipped appropriately, can retrieve sports scores, let you make investments, check flight statuses, find restaurants, and even tell you what you’ve got in your pantry. Here’s our list of 100 best reference tools for your iPhone, and ones that you’ll actually use.

General

Students will love these handy apps that let you work and study while on the road.

1. Little Black Book: Store personal contact information and relationship details that can be locked on your iPhone with this app.
2. iRec Voice Recorder: Turn your iPhone into a voice recorder you can reference later with this app.
3. WhosHere: Using this app, you can find friends who are nearby.
4. Britannica Mobile: Access the Britannica Online encyclopedia here.
5. Wiki Tap: Start typing in a topic, and this app finds it for you on Wikipedia. You can also watch videos on the topic, and more.

Sports

Get sports stats, historical moments and more.

6. iSports: Get near real-time sports scores, graphs and more.
7. ESPN iPhone Edition: Get sports news and scores from ESPN for the iPhone.
8. FOX Sports Mobile: Tune in to the sports news and data on FOX Sports Mobile.
9. Sports History: Review the most memorable sports events and records in history.
10. SportsTap: Get world stats and scores for MLB, NFL, NBA, NCAA, NHS, futbol, auto racing, tennis, golf and more.

Directions and GPS

Figure out where you are and how to get home with these tools.

11. Trails: Create your own trail map or hiking guide with this GPS tool.
12. Find Me!: If you’re lost, use Find Me! to learn information about your neighborhood and view maps.
13. Guide.me: View your current location on a map, even during poor GPS reception conditions.

Health and Wellness

Check this list for reference tools that search symptoms, keep you on your diet, and help you find doctors.

14. VegOut: Find vegan, vegetarian and vegetarian-friendly restaurants with your iPhone by using VegOut.
15. Pocket Workout: Practice calisthenic exercises by viewing them on your iPhone.
16. Doctors: Use this app to locate dentists, specialists, doctors and pharmacies.
17. Goal-Tracker: Use this app as a personal reference tool for tracking goals.
18. rubiTrack: Organize and plan out your outdoor fitness activities, like biking, hiking and jogging, with rubiTrack.
19. Weightbot: Record weight loss progress here.
20. WebMD Mobile: Look up symptoms, drugs, treatments, diseases and more.

Travel

Download these tools before going on a trip, so that clean bathrooms, hotel reservations, metro maps and currency calculators are always close by.

21. SitorSquat: Find clean bathrooms using this free app.
22. FlightTrack Pro: Use this app to get flight status updates, flight details, tracker maps, a master itinerary of your travel plans, and more.
23. ACT Printer: Store all of your travel documents on your iPhone instead of having to print out messy copies you can lose.
24. Kayak for iPhone: Use this app to find the best deals on airline tickets and hotels. You can also change flights and make reservations last minute.
25. IBE Traveler: Convert currencies, look up area codes, calculate tip amounts, figure out clothing size conversions, and more.
26. WorldView: Check weather conditions and more for anywhere in the world by tapping into web cams for that area.
27. Travelocity TravelTools: With this app, you can look up airport gates, delays, flight schedules and more.
28. Airport Gates: Look up gate information and airport lay-out maps here.
29. Barfly Travel Guide: Find the coolest bars around the world with this app.
30. Metro Paris Subway: More easily navigate the Paris metro system when you have this app.

Finance

Manage your investments, budget, savings and other accounts with these finance tools for the iPhone.

31. Mint.com for iPhone: Track your spending and refer to this app when you have personal budget questions.
32. ATM Hunter: Find the closest MasterCard, Maestro or Cirrus ATM around the world.
33. SenseApp: Track how much you’ve earned through Google AdSense here.
34. Owed: Track IOUs and rentals with this app.
35. iStock Manager: This app works with TD AMERITRADE and gives you account access for trading and more.
36. Bloomberg: With Bloomberg for the iPhone, you can get finance news, stock quotes and a customized stocks list in multiple languages.
37. Financer Lite: This reference tool organizes deposits, withdrawals, and more.
38. iTrade Stock Market Simulator: Learn how to trade and invest on the stock market with this iPhone simulation game before attempting the real thing.
39. Checkbook: Refer to your iPhone checkbook instead of your paper one for more convenient tracking.
40. DailyFinance: AOL’s DailyFinance app brings you real-time stock quotes and financial news, plus interactive charts, watchlists and more.

Local Guides

Get to know your city a little better by using these tools to find new restaurants, special events, traffic jams, business listings and more.

41. NY Traffic Cam: New Yorkers can plan their commutes when they have access to this app.
42. OpenTable: Make free restaurant reservations with this app.
43. WhitePages mobile: Look up people and business listings on this app, which also generates maps based on your location.
44. I’mSoBombed.com: If you live in Madison, WI, you can use this app to calculate your BAC, find drink specials, late night snacking, taxis, liquor stores, and more.
45. Event Finder: With Event Finder, you can find theater, sports, family and music events close by.
46. Yelp: Get ratings and recommendations for local shopping, eating out and entertainment.
47. Where To?: Search nearby businesses by category.
48. Urbanspoon: Look up restaurant information by location, price or type of food.
49. Mashspots: Find the four closest hot spots to your current location using this tool.
50. Rocket Taxi: Find cabs in over 10,000 cities in the U.S., Australia, Canada, France, Germany, Switzerland and more.

Calculators

Here you will find calculators for figuring out mortgage payments, medical formulae and beyond.

51. Tip Ref Chart: Calculate tips with this app.
52. TimeWaste: Figure out how much you’re getting paid to sit around at work to play on your iPhone.
53. FastFigures Finance Calculator: With this app, you can figure out area conversion, percent change, data conversion, markup, cash flows, mortgage payments, and a lot more.
54. Graphing Calculator: Turn your iPhone into a graphing calculator with this reference tool.
55. Tipulator: Tipulator is another fun calculator that supports pounds, USD, euros and more.
56. Loan Calculator Pro: Use this tool to calculate payment options, interest rate and more.
57. Medical Calculator: This tool figures out BMI, real age, cholesterol, pregnancy dates, and lots more.
58. Kitchen Calculator: Look up and convert units and measurements, like tablespoons, pints, cups, liters and more.
59. Periodic Table and Chemistry Calculator: Calculate density, boiling points, melting points, electrical resistance and more in several languages.
60. Scientific Calculator: If you ever need a scientific calculator, you can use this tool on your iPhone.

Shopping and Classifieds

Use these tools to look up deals, classified listings, product reviews and more.

61. Yowza: Find coupons for stores and deals near your location.
62. iPhoneShopper: Search and shop Amazon.com with this app.
63. Consumer Reports: Use this app to read product reviews, analysis and news before buying anything.
64. CraigSearch: Access Craigslist on your iPhone using this tool.
65. iJobs: This tool searches multiple job sites and lets you filter listings as you choose.
66. iWant: Choose a shopping or errands category, like pharmacy, grocery, dry cleaners, banks, and more, to find local listings.
67. Grocery Gadget: Sync, share and refer to your ongoing grocery lists with this tool.
68. iDeals: Learn about the best deals online.
69. iShopSmart: Research and compare prices are all kinds of products using iShopSmart.
70. Etsy Search: Search Etsy.com from your iPhone here.

Words, Reading and Dictionaries

With these tools you can learn sign language, catch up on classic literature, translate other languages, research the Bible, and more.

71. Classics: Review classic literature like Huckleberry Finn, The Call of the Wild and Paradise Lost through this app.
72. Free Translator: Use this app to translate languages including Chinese, Vietnamese, Italian, Hindi, Danish, German and Russian.
73. Kindle for iPhone: The popular reading tool, Kindle, is now available on the iPhone, letting you read books, magazines and newspapers from your phone.
74. iSign: Learn sign language through your iPhone here.
75. Pocket Translator: Use this tool to translate when you’re traveling or on foreign language websites.
76. eNET Bible: This reference guide comes with over 60,000 translator notes for the Bible.
77. iConjugator: Get help conjugating verbs in five different languages.
78. Make U Sound Smart: This tool pulls some of the best words from the dictionary so that you can sound smart in everyday conversation.
79. txtpedia: With txtpedia, you can look up texting abbreviations like IDK, CYT and more.
80. Scrabble Dictionary: Verify that your Scrabble words are actually words with this tool.

Weather

Learn more about the weather with these tools.

81. WeatherCyclopedia: This tool educates you on meteorology, weather-related terminology, and more.
82. AccuWeather: Get weather maps and five-day forecasts.

News

Keep up with current events, economic news, politics and entertainment by checking these iPhone news resources.

83. Wall Street Journal: Watch WSJ videos, listen to podcats and read WSJ top stories.
84. Google Reader: Organize your news feeds with Google Reader for the iPhone.
85. AP Mobile News: Personalize this news site to watch videos, local broadcasters, world news stories, and more.
86. Huffington Post: Read this popular online news source on your iPhone here.
87. RSS Player Podcast: Subscribe to your favorite podcasts and then organize them using this tool.

Search

These search tools turn your iPhone into a virtual librarian.

88. Peekyou: Peekyou is a people search that finds contacts and addresses around the world.
89. GazoPa: Search for images that match the one you’re currently viewing.
90. AB Search: Search all of your contacts with this tool.
91. FindOut: Find out virtually anything with this tool that searches search engines and other tools online.
92. Flickr on iPhone: Search for photos on Flickr here.

Miscellaneous

This list features even more reference tools for your iPhone, from cooking resources to mileage logs.

93. Survival Check List: Consider this app your emergency preparedness check list.
94. i-COOK Chef Ref: Cooks and chefs can refer to this app to find temperature conversions, weights and measures, cooking temperatures and times, metric conversion, and more.
95. Night Stand: Turn your iPhone into a digital clock with alarm.
96. Milebug Mileage Log: Log mileage for business expense reports and more.
97. Pantry: Use Pantry to keep track of the groceries you already have at home and don’t need to buy when you go grocery shopping.
98. MoMA Audio: Listen to commentary of art works and exhibitions at the Museum of Modern Art in New York.
99. Pocket Informant: Refer to this personal organization tool to find a calendar and schedule support.
100. Gas Cubby: Track vehicle maintenance and gas mileage, as well as gas prices and other car records.