DealStack
Finance
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Model the complete cost of a UK property deal. Test finance, refurbishment, rent, operating costs, refinance outcomes and downside scenarios before committing.
DealStack helps UK property investors and small developers understand the complete financial picture behind a potential property deal.
Model buy-to-let, BRRR, HMO, flip and rent-to-rent strategies using your own property information, costs, evidence and financial constraints.
COMPLETE DEAL ANALYSIS
Enter the purchase price, refurbishment budget, expected value, rent and finance assumptions. DealStack calculates the resulting cash requirement, cash flow, yield and potential return.
UNDERSTAND EVERY RESULT
Tap a calculated result to see a simple breakdown of the figures and formula behind it. DealStack makes the calculation visible instead of presenting an unexplained score.
MODEL THE REAL COST
Include:
• Stamp Duty Land Tax (SDLT) and equivalent UK property transaction-tax estimates
• Refurbishment and contingency allowances
• Solicitor, survey and finance fees
• Furniture, licensing and setup costs
• Bridge finance and arrangement fees
• Interest-only or repayment mortgages
• Maintenance, management and void allowances
• Insurance, utilities and other operating costs
• Room-by-room HMO income
TEST THE DOWNSIDE
Review the effect of lower values, lower rent, increased costs and changing finance assumptions. Compare the base case with moderate and severe downside scenarios.
REVIEW LONGER-TERM OUTCOMES
Generate five and ten-year projections using your assumptions for rent growth, cost inflation and property appreciation.
DealStack calculates:
• Monthly cash flow
• Gross and true gross yield
• Cash invested
• Capital remaining after refinance
• Cash recycled
• Return on cash employed
• Flip profit and return on cost
• Break-even rent
• Projected debt, equity and cumulative cash flow
• Maximum purchase price against your constraints
BUILD YOUR OWN EVIDENCE
Add sold and rental comparables, record their similarity and use the evidence to support your own valuation and rental assumptions.
SAVE AND COMPARE DEALS
Save deals locally, reopen them for review, update an existing deal or save a modified version as a new deal. Compare saved opportunities side by side and export your portfolio as CSV or JSON.
CREATE PROFESSIONAL REPORTS
Export a structured PDF deal report containing the property assumptions, acquisition basis, finance, returns, downside scenarios and comparable evidence.
PRIVATE BY DESIGN
Saved deals and assumptions remain on your device unless you choose to export them. Optional Face ID protection can be enabled in Settings.
IMPORTANT
DealStack is analytical software, not a property sourcing, brokerage or valuation service. It does not find, rank, recommend, advertise, introduce, negotiate or transact properties.
Results are estimates derived from the information and assumptions you provide. DealStack does not provide financial, legal, tax, investment or surveying advice. Obtain appropriate professional advice before making a property or finance decision.
Privacy Policy: https://deal-stack.co.uk/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, David Christie, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- David Christie
- Size
- 1 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Founding Investor $99.99
- Full Deal $2.99
- Copyright
- © 2026 David Christie
