It doesn't look to me like venture capital is the right way to go for you because it doesn't look like your company is the style that they typically invest in. VCs generally look for opportunities where they can deploy a large amount of capital and have a reasonable chance of earning massive returns within 5 years.
They look for companies that, after getting the money, will about about a 1/3 chance of failing, 1/3 chance of building a solid business, and a 1/3 chance of being a real success. A real success is one that returns 10x to 100x the original investment to the VC. They are not interested in a cashflow-type payout. Assuming a solid-business or successful company is produced, they need a "liquidity event" so they can give the returns back to their investors after a few years. A liquidity event is generally an IPO or a merger that lets them cash out.
With some notable exceptions like the aforementioned Y-Combinator, they tend to like companies that need a ton of cash now to leap to a new level. They have gone out and raised billions and need to quickly deploy the capital with limited staff. They need to deploy it quickly because they only tie up investor capital for 10 years. Money that isn't deployed isn't earning returns. A good VC will offer far more than money. They help with sales, with management, with marketing, and anything else that isn't in the core competency area of the funded company. A good VC firm more than earns the 30-60% stake of a company that they take. Deploying only a small amount of capital like $25k is tough for them because it's about the same amount of work as deploying $1-10m, but they have a much smaller potential upside.
On GeoffreyF67's point, a VC is looking to create a company with the best possible team they can. If you have a great idea but they know a much better team to do it, then your idea might get stolen. More likely, they will fail to see your brilliance and they won't bother. Either way, if you're not the best person to do it, you'll end up creating a competitor soon when that person sees your product and decides to take your market. Some care is needed to avoid having ideas stolen, but a proven one with a working implementation generally has a low chance of really being stolen.
I'm assuming that you're out of work and the $25k is for personal living expenses. Alternatively, you may want to quit your job so that you can just finish your product. Here are some suggestions (some from various other posts):
- Live more frugally so you don't need to raise capital.
- Get a day job that isn't too mentally taxing so you can pay the bills. May I have your order?
- Get a bank loan.
- Start reading up on angel investors. They often want to deploy smaller amounts of capital. Assuming you're in the USA, hopefully you live in Silicon Valley, Boston, or Houston.
- Get a small business grant from your government.
- Read up on Y-Combinator and see if you can adjust your company and product to suit their needs.
Note that the angel investor, government grant, and VC routes all take a considerable amount of time and effort. For angels and VCs, you really need to do a lot of research and networking to get the right one and to convince them that you're the right one for them. For the government grants, you'll need to find one, figure out how to apply, apply, and wait for a decision. Since you are a lone employee and you only have 3 months of work to have a salable product, these three options probably aren't worth the effort.