Mobile app build Retainer Agreement template
A ready-to-send retainer agreement for app development work. Everything below is fully editable — client name, dates and totals become live variables, every priced item turns into an interactive block your client can accept, e-sign and pay in one link. GST, UPI and Razorpay built in.
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Mobile & product · Retainer Agreement
Mobile app build
for Acme Industries
Apps people keep on their home screen.
Prepared by Your Studio · 1 August 2026 · Valid until 31 August 2026
iOS + Android Cross-platform | 2 wk Sprints | Store Launch support |
Dear Acme Industries, this retainer gives your team dedicated, predictable capacity for ongoing Mobile app build — billed monthly, no hiring required.
What's included each month
- UX & prototype
- Sprint builds
- QA & store prep
- Launch + roadmap
- Monthly review call and a written progress report
- Response within 1 business day (SLA)
Investment
| Item | Amount |
|---|---|
| Discovery & planning | ₹1,20,000 |
| Mobile app build — core delivery | ₹3,00,000 |
| Reviews, QA & launch | ₹90,000 |
| Handover, documentation & 30-day support | ₹90,000 |
| Total (incl. 18% GST) / month | ₹6,00,000 / month |
Billed monthly in advance. Pause or cancel with 30 days' notice. Prices include 18% GST.
Why Your Studio
One codebase iOS and Android without doubling cost. | Ship in sprints See it working every two weeks. | Beyond launch A roadmap so the app keeps improving. |
Terms
- Billed monthly in advance; GST invoice issued on payment.
- Unused capacity doesn't roll over; scope can be rebalanced each month.
- Either party may end the retainer with 30 days' notice.
Next steps
- Review this retainer and leave any questions as comments right on this page — we reply the same day.
- Accept and e-sign below (legally valid under the IT Act, 2000).
- Pay the deposit from this page — UPI, cards and netbanking are supported.
- We schedule kick-off within 2 business days.
Prepared by Your Studio · 1 August 2026
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