Black Friday10% off any legal service

Collaboration Agreement Template For App Developers

byAlex Solo10 min read

Building an app with another business can be exciting. You might have the idea, they might have the technical team, and together you can move much faster than either of you could alone.

But once you start sharing code, designs, user research, budgets or customer lists, the relationship needs clear rules. A friendly handshake can feel fine at the start, but it doesn't answer the hard questions later: who owns the code, who gets paid first, and what happens if one side wants out?

A collaboration agreement template can be a useful starting point, but app projects have some extra moving parts. You'll want the document tailored before you rely on it, especially around IP ownership, open-source software, revenue share and exit rights.

Do You Need A Collaboration Agreement For App Development?

Yes, you should have a written collaboration agreement before you share valuable app assets or start building together. The main reason is simple: app projects usually create several types of intellectual property at once, and the law won't always give you the result you expect.

For example, your project may involve:

  • source code, object code and repositories
  • UX and UI designs, wireframes, icons and brand assets
  • product strategy, user research and pricing models
  • databases, APIs and technical architecture
  • trade marks, app names and domain names
  • confidential know-how, investor materials and customer leads

In England and Wales, copyright in software code is generally protected under the Copyright, Designs and Patents Act 1988. But copyright ownership can depend on who created the work and whether there's a written assignment. If a contractor writes code for you, they may own it unless they assign it to your business in writing.

A collaboration agreement is different from a basic software development agreement. It usually deals with a shared project where each side contributes something and expects some upside. That upside might be revenue, equity, usage rights, data access or a long-term commercial partnership.

The agreement should be signed before you start work, not after the first beta release. Once value has been created, it can be much harder to renegotiate ownership fairly.

Who Owns The Code In A Joint App Development Agreement?

It depends on what your agreement says, who created the code, and whether the IP has been properly assigned or licensed. If the agreement is silent, you may end up with a messy position where each party owns different parts of the app.

For a joint app development agreement, you usually have three broad options.

Option 1: One Party Owns The App IP

One business owns the app IP, and the other party receives payment, equity, royalties or a licence to use it. This can work well where one side is clearly the product owner and the other is the build partner.

Your agreement should say exactly what is assigned, when ownership transfers, and whether payment must be made first. If ownership only transfers after full payment, say that clearly.

Option 2: Both Parties Jointly Own The App IP

Joint ownership can sound fair, but it often creates problems. If you both own the code, can one of you license it to a third party? Can either of you sell the app? Who can enforce the IP if someone copies it?

If you choose joint ownership, your agreement needs detailed rules for consent, licensing, sale proceeds, enforcement costs and decision-making.

Option 3: Each Party Keeps Its Own Contributions

Each party keeps ownership of what it brings to the project, and grants the other party a licence to use it for the app. This is common where both sides have existing assets, such as a code library, brand, data set or design system.

The key is to separate background IP from project IP. Background IP is what you already had before the collaboration. Project IP is what gets created for the app.

What Should Be In An App Development Collaboration Agreement Template?

A good template should cover the commercial deal, the build process, IP ownership, confidentiality and what happens if the project ends. A generic collaboration agreement template UK businesses find online may miss app-specific issues, so treat it as a starting point only.

Below is a sample template structure you can use to plan your agreement. It includes fill-in fields and clause prompts, but it still needs to be tailored to your project before you sign it.

  1. Parties: This agreement is between [Party A legal name, company number and registered office] and [Party B legal name, company number and registered office].
  2. Project Description: The parties will collaborate to develop [app name], a [mobile app, web app or platform] for [target users and market], with the key features listed in Schedule 1.
  3. Contributions: Party A will provide [funding, product strategy, data, branding or marketing]. Party B will provide [developers, design time, technical architecture, API access or support].
  4. Milestones: The project will be delivered in stages, including [prototype], [beta build] and [launch version]. For each milestone, state the deliverables, review period, acceptance criteria and what happens if work is late or rejected.
  5. Costs And Budget: The approved budget is GBP [amount]. Set out who pays each cost, whether costs need written approval, and how overspend will be handled.
  6. IP Ownership: Each party keeps its background IP. Project IP will be owned by [Party A, Party B, both parties jointly or another structure]. Include wording for assignments, licences, improvements, trade marks, content, designs and code.
  7. Open-Source Software: No open-source software may be used unless [approval process] is followed. Each party must keep an open-source register showing the component name, version, licence and use in the app.
  8. Revenue Share: Revenue from [subscriptions, in-app purchases, advertising, licence fees or other income] will be split [percentage] to Party A and [percentage] to Party B after deducting [agreed costs]. Payments will be made [monthly or quarterly] with supporting reports.
  9. Confidentiality: Each party must keep confidential information secure, including source code, repositories, product plans, customer data, investor materials, pricing, API keys and credentials.
  10. Data Protection: The parties will act as [controllers, joint controllers or processor and controller] for personal data. Add UK GDPR processor clauses, security duties, breach support and privacy documentation where needed.
  11. Governance: Decisions about product scope, budget, launch timing, hiring, marketing and commercial deals will be made by [named people, steering committee or unanimous consent].
  12. Exit Rights: Either party may terminate if [trigger events] occur. On exit, the agreement should cover handover, repository access, app store accounts, domains, buyout rights, ongoing licences and any final payments.

You can add other clauses depending on the app. For example, a fintech app may need more regulatory and security wording. A marketplace app may need stronger user terms, consumer law and payment flow provisions.

How Should Revenue Share And Milestones Work?

Revenue share and milestones should be specific enough that you can calculate payments without arguing. If the agreement just says profits will be split fairly, you're leaving too much room for disagreement.

Start by defining the revenue pool. For example, will the split apply to:

  • gross app store revenue before platform fees
  • net revenue after Apple or Google fees
  • subscription income only
  • advertising income
  • in-app purchases
  • enterprise licence fees
  • consulting or implementation fees connected to the app

Then decide which costs can be deducted before the split. Common examples include hosting, payment processing fees, app store commissions, approved advertising spend and third-party software fees.

Say Maya runs a small design studio in Manchester and partners with DevCo to build a booking app. Maya contributes the product idea, branding and GBP 12,000 towards initial build costs. DevCo contributes 160 developer hours at a discounted rate. They agree that after app store fees and hosting costs, net revenue will be split 60 percent to Maya and 40 percent to DevCo for the first 24 months.

In month one, the app makes GBP 5,000 in subscription revenue. App store fees are GBP 750 and hosting is GBP 250, leaving GBP 4,000 net revenue. Maya receives GBP 2,400 and DevCo receives GBP 1,600. Because the agreement defines the formula, neither side has to debate what counts.

Milestones should work the same way. Define each stage, the deliverables, the review period and the consequence of approval. For example, milestone 1 could be clickable prototype approved within five business days, milestone 2 could be working beta with login and payment flow, and milestone 3 could be app store submission.

How Do You Deal With Open-Source Software In An App Collaboration?

You should have clear rules for open-source software because some licences can affect how you use, distribute or commercialise your app. Open-source code can be incredibly useful, but it isn't the same as code with no strings attached.

Your software collaboration contract should require each party to keep a register of open-source components used in the app. That register should record the component name, version, licence type and where it's used.

Some open-source licences are permissive, such as MIT or Apache-style licences. Others, such as some GPL-style licences, can include copyleft obligations that may require source code disclosure in certain circumstances. The exact effect depends on the licence terms and how the software is used.

Your agreement can reduce risk by saying:

  • no open-source software can be added without approval
  • each party must comply with the relevant licence terms
  • high-risk licences need written sign-off before use
  • the developer must provide an open-source schedule before each release
  • the app must include any required notices or attribution
  • neither party can use code that would force disclosure of proprietary code unless agreed

This is especially useful if you're planning to raise funds, sell the app or licence it to enterprise customers. Investors and buyers often ask for an IP and open-source review as part of due diligence. Clean records make that process much easier.

What Confidentiality And Data Protection Clauses Do You Need?

You need confidentiality clauses that protect both commercial secrets and technical assets, plus data protection clauses if the app involves personal data. Most app collaborations involve both.

Confidentiality should cover more than a general promise not to disclose information. Your agreement should protect:

  • source code and repository access
  • product roadmaps and feature lists
  • customer lists, user research and analytics
  • pricing, investor decks and financial forecasts
  • security documents, API keys and credentials
  • unreleased designs, trade marks and brand concepts

Access controls matter too. Your agreement should say who can access repositories, whether subcontractors can be used, and what happens to credentials when the project ends. If a developer leaves the other party's business, their access should be removed quickly.

If the app collects or uses personal data, you'll also need to deal with the UK GDPR and the Data Protection Act 2018. The agreement should state whether each party is a controller, joint controller or processor. If one party processes personal data for the other, you'll usually need processor clauses covering security, instructions, sub-processors, breach support and deletion or return of data.

Don't forget the user-facing documents. Depending on how the app works, you may also need a privacy notice, cookie wording, app terms, website terms and customer terms. If the app is aimed at consumers, the Consumer Rights Act 2015 and rules around transparent pricing and digital content may also be relevant.

What Happens If One Party Wants To Leave?

Your agreement should set out exit rights from the start because people, budgets and priorities can change. A clean exit clause can stop a difficult conversation from turning into a business-ending dispute.

Start with termination triggers. You might allow termination if:

  • a party doesn't meet key milestones after a cure period
  • a party doesn't pay approved costs
  • a party breaches confidentiality or IP rules
  • the project misses a longstop launch date
  • the parties can't agree on a major decision after escalation
  • one side becomes insolvent or stops trading

Then deal with what happens next. This is where many templates are too thin. For app projects, your exit wording should cover repository access, handover files, source code escrow arrangements, designs, domains, app store accounts, analytics accounts and third-party subscriptions.

You should also decide whether there's a buyout right. For example, if one party leaves after the beta build, can the other party pay a fixed amount or agreed valuation and continue the app? If so, does the leaving party keep a revenue share, lose future upside, or retain a limited licence?

Be careful with founder-style collaborations. If you're creating a new company or joint venture to own the app, you may also need articles of association and a shareholders' agreement under the Companies Act 2006 framework. The collaboration agreement can sit alongside those documents, but it shouldn't contradict them.

The aim is to make the exit predictable. If the relationship ends, you should know who can keep building, who owns what, what must be returned and what payments are still due.

Key Takeaways

  • A written agreement is best signed before you share code, designs, budgets or confidential app plans.
  • IP ownership needs careful wording, especially for contractor-created code, background IP, project IP and joint ownership.
  • Revenue share should use a clear formula, including what revenue is included and what costs can be deducted.
  • Open-source software needs approval rules and a component register, not just a general permission to use third-party code.
  • Confidentiality, repository access and UK GDPR roles should be dealt with early, especially if personal data is involved.
  • Exit rights should explain who can continue the app, what handover is required and whether any buyout or ongoing payment applies.

If you'd like help with your app collaboration agreement, IP ownership clauses, revenue share terms or data protection documents, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.

Drafted by Taylor, Sprintlaw's AI, and overseen by Alex Solo. How we write

Protect your brand

What intellectual property should you protect?

If a name, logo, design or other creative work matters to the business, check who owns it, what permissions you need and whether clearance or registration is appropriate.

Alex Solo
Alex SoloCo-Founder

Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.

Protect your brand

Get in touch with our team

Tell us what you need and we'll come back with a fixed-fee quote - no obligation, no surprises.

Keep reading

Related Articles

Collaboration Agreement Template: Key Clauses for UK Startups and SMEs

Collaboration Agreement Template: Key Clauses for UK Startups and SMEs

Collaborations can be one of the fastest ways to grow a startup or SME. You might team up with another business to co-create a product, run a joint marketing campaign, share distribution...

14 Mar 2026
Read more
Non-Disclosure Agreements for App Development: What UK Businesses Need To Know

Non-Disclosure Agreements for App Development: What UK Businesses Need To Know

You’ve poured hours into brainstorming, wireframing, and fine-tuning your app concept. You’re excited about teaming up with developers, designers, or potential investors - but there’s one thing holding you back: how do...

14 Sept 2025
Read more
Software Development Agreements for UK SaaS Startups

Software Development Agreements for UK SaaS Startups

A software development agreement can decide whether your UK SaaS startup owns its code, gets usable deliverables and can exit cleanly if the project goes

2 Aug 2026
Read more
How To Draft a Collaboration Agreement Template for Your Business Partnership

How To Draft a Collaboration Agreement Template for Your Business Partnership

Picture this: you’ve found the perfect business partner, and together you’re ready to take on new projects, clients, and markets. Whether it’s co-developing a product, running a one-off event, or embarking on...

28 Sept 2025
Read more
Sharing Agreement: Key Terms and How To Draft One

Sharing Agreement: Key Terms and How To Draft One

If you’re teaming up with another business to share data, resources, costs or revenue, you’ll want a clear Sharing Agreement in place from day one. It doesn’t have to be complicated. The...

6 Jan 2026
Read more
Development Agreements: Key Clauses And Common Pitfalls

Development Agreements: Key Clauses And Common Pitfalls

If you’re building software, launching a new product, or partnering with another business to bring an idea to life, a development agreement is often the contract that holds the whole project together....

3 Mar 2026
Read more
Need support?

Need help with your business legals?

Speak with Sprintlaw to get practical legal support and fixed-fee options tailored to your business.