First source: https://savvyapps.com/blog/how-much-does-app-cost-massive-review-pricing-budget-considerations

Some of the main highlights of this document:

• The costs of apps are largely based on features, complexity, and platform.
• Apps with back-end servers will almost always cost more.
• Simple apps for one platform will start around $25,000.
• More complex apps cost six figures but can push up over $1,000,000.
• Costs will also vary based on who builds it (e.g., offshore versus high-end agency).
• Don’t forget to budget for updates, marketing, your own salary, and other costs.
• The total first round raise for 18 months he suggested is $750,000 (breakdown below):

$120,000 of operational dollars for legal, accounting, and comparable fees

$35,000 per month for a team of four: The timeline to build a v1.0 app is usually anywhere between 4-6 months which totals at about $90,000 to $140,000.

This source was a good way to see how the whole budget gets split into their different departments. It has been very useful to get a initial idea on how much money is required for making an app.

Second source: http://howmuchtomakeanapp.com

This source asked me a serious of questions on what I want on my App

|This second source is a great way to get a more specific budget for my app. As it allows me to choose what options I want in my app and it creates a personal budget for my project. However even though it shows the breakdown of what goes into my app and the total budget, it doesn’t show how much each sections costs which is not very useful. This problem is limiting as I do not know how much each section costs which will limit my ability to create a full blown budget.