Here are some ideas that you can develop to start your own Mobile Business App.  

You can make money by using a subscription based model and / or selling advertising spots. 

Creating any sort of Local Directory 

1. Restaurants / Food Delivery / Fast Food / etc.
2. Hotels / Room Rentals / etc.
3. Mechanics / Car rentals / Car parts / etc.
4. Shopping directories
5. Picnic areas / Hiking trails
6. Events and Festivals guide
7. Sports
8. Family Events
9. Local Film Makers
10. Local Musicians
11. Real Estate
12. Schools and educational centers
13. Recreational activities (Yoga/ Art Studios)

Guides Ideas

1. Animal friendly places
2. Touristic city guide / interesting places to see / tips / tricks / phrases / maps / emergency numbers / adverts
3. Wheelchair friendly places
4. Gaming guides

Local Booking Services

1. For taxis
2. Any kind of rentals
3. Restaurants
4. Plays and theaters

Local Delivery

1. Supermarkets
2. Groceries
3. DVD stores
4. Cigarettes and Alcohol

Create a mobile app that sports Discounts, Promotions and Special Prices by generating a voucher code.

Information apps

(Collect data from around the web and from blogs. Keep updated) Get users interactive by sending in their pictures, articles, stories, recipes and more to generate fresh new content. 

1. Marketing / Social Media tips and tricks
2. Trending topics
3. How to Apps
4. Hobbies
5. Animal care
6. Recipes
7. Health and diets
8. Sports / Fitness / Gym / Training /
9. Pregnancy and Baby

Create a Daily …

1. comic strip
2. Inspiration / Joke
3. Photo of the day

Free Apps with monetizing opportunities

1. Build an app for a religious institute
2. Build an app for a charity
3. Build apps for NGOs
4. Create a hub for local artists to post their events

Idea generator – User generated content on any category you like –

1. What to do on a Saturday night
2. Shoe string budgeting
3. Gift ideas
4. Certain situations
5. Romantic gestures

Create apps for clients.

1. Examples
   1. Coffee shops and restaurants
   2. Florists
   3. Hairdressers and \Makeup Artists
   4. Bars, Clubs, Lounges
   5. High-street shops
   6. Yoga / Craft / Art / Music studio
2. How to make money
   1. Sell the app custom made with a onetime fee and then charge a yearly maintenance fee.
   2. Create a standard template app and sell it as a monthly subscription base

Create a Mobile App Store. Chose a niche market

1. Design T-shirts and sell them on the mobile app
2. Sell crafts and unique art work
3. Collect items from local stores around you and sell them for a percentage.