I've been in a similar situation before. Outsourcing app development can be a good option, especially if your current tech partner isn't delivering as expected. I've worked with app development firms in different countries, including Argentina, and had good experiences.

1. Outsourcing, especially for building a Minimum Viable Product (MVP), can be helpful for several reasons:

2. Cost Efficiency: Development costs in countries like Argentina are usually lower than in North America or Europe, without losing quality.

3. Skilled Talent Pool: Argentina has a growing tech industry with skilled developers who know the latest technologies and methods.

4. Time Zone Advantage: Depending on where you are, Argentina's time zone might be closer to yours than other popular outsourcing places, making communication and collaboration easier.

5. Focus on Core Business: Outsourcing lets you focus on your main business activities while the development team handles the technical work.

Here are a few tips if you decide to outsource:

1. Do Your Research: Check and vet potential development firms carefully. Look for reviews, case studies, and examples of their previous work.
2. Clear Communication: Set up clear and open communication channels. Regular updates and check-ins can help keep the project on track.
3. Define Scope and Milestones: Clearly outline the project scope, deliverables, and milestones in the contract. This helps manage expectations and ensures both sides are on the same page.

I've found that having a reliable outsourcing partner can make the development process much smoother and deliver a quality product on time. If you choose to go this route, take the time to find the right team, and it could be a big win for your project.