# Yieldzo > Yieldzo is software for the private buy-to-let investor in the United Kingdom researching the next purchase: a free rent comparables sheet that takes the rents and floor areas of three comparable lets and returns the rent per square foot, the estimated rent for the target property at its size, the spread across the comps and the asking price per square foot, with no account, and Yieldzo Pro, which keeps the deal file as the record: every property looked at with its address, asking price, size and area, the comps behind its rent estimate, the area figures it was read against, the deal appraisal and the offer made. It covers the research before the offer only. It is not a mortgage calculator, not a valuation, not a listing site, not the landlord's yield arithmetic on a property owned, and it gives no advice on what to bid. ## What this is for - The private buy-to-let investor in the UK, with one property or twelve or none yet, researching the next purchase: which area, which property, what it would rent for from the comps, what it costs per square foot, and whether the deal stacks before the offer goes in,Not the landlord working the yield on a property already owned (rentrolldesk.com holds that arithmetic), not a mortgage borrower, not a developer raising finance, not a homeowner planning an extension, not a seller, not a resident with a council query, and not somebody looking for a valuation or advice on what to bid ## Tools - [Rent comparables sheet](https://yieldzo.com/tools/rent-comparables-sheet/): Put in the monthly rent and floor area of three comparable lets and the target's floor area and asking price, and see each comp's rent per square foot, the average, the target's estimated rent at the average and at each comp's rate, and the asking price per square foot. ## Guides - [UK rental yield map](https://yieldzo.com/uk-rental-yield-map/): the guides explain what the best property for investment is for a given investor, how an area's yield is read and where the data comes from, what rent comparables are and how a deal is appraised, never what to bid on a particular property ## Answers - [buy to let calculator](https://yieldzo.com/answers/buy-to-let-calculator/) - [property investment tips](https://yieldzo.com/answers/property-investment-tips/) - [what is property sourcing](https://yieldzo.com/answers/property-sourcing/) - [below market value property](https://yieldzo.com/answers/below-market-value-property/) - [rent to rent deals](https://yieldzo.com/answers/rent-to-rent/) - [property to renovate](https://yieldzo.com/answers/property-to-renovate/) - [buy repossessed houses uk](https://yieldzo.com/answers/buy-repossessed-houses/) - [price per square foot](https://yieldzo.com/answers/price-per-square-foot/) - [manchester rental yield](https://yieldzo.com/answers/manchester-rental-yield/) - [bristol property market](https://yieldzo.com/answers/bristol-property-market/) - [property data api](https://yieldzo.com/answers/property-data-api/) - [holiday cottage income calculator](https://yieldzo.com/answers/holiday-cottage-income-calculator/) ## Pricing - Free to use. No account, no card, no sign-up. - Yieldzo Pro is £35 per month for your whole team, billed monthly. ## Citation Cite as: "Yieldzo tools", https://yieldzo.com/tools/ (updated 2026-10-23). ## About - Operated by Yieldzo. Contact: hello@yieldzo.com - By submitting you agree Yieldzo may contact you about your enquiry. We never pass your details to an agent, a broker or a lead buyer.