📌 1. Detailed Scope and Deliverables

Define:

• Platform (iOS, Android, web)?

• Key functions?

• User roles?

• Technical specs?

Attach mock-ups, wireframes, or a functional brief if possible.

📌 2. Timeline and Milestones

Avoid vague promises. Break the project into:

• phases (design → dev → testing → handover),

• interim results,

• feedback deadlines.

Keeps the project manageable and accountable.

📌 3. Price and Billing Terms

• Fixed or hourly rate?

• Any deposit?

• Billing per milestone or final delivery?

• How are changes charged?

Clarity avoids payment disputes.

📌 4. Defects and Warranties

• How are bugs reported and fixed?

• Is there a warranty period (e.g., 6 months)?

• Deadlines for responses?

No automatic warranties exist in Czech law – it must be agreed.

📌 5. IP and Licensing

• Will the client own the source code?

• Can the developer reuse code?

• Is documentation included?

Without licensing clauses, the client may be prohibited from editing the app.

📌 6. Contract Termination

• Can the deal be cancelled early?

• How is partial work paid?

• What if one side fails to perform?

Protects both sides from deadlocks.

🧱 Real Case

A start-up ordered an app via email – “200,000 CZK, done in 3 months.”
The result? Missing features, poor testing.
The developer claimed it was “done”, the client refused to pay.
No proper contract = legal chaos.