Questions, answered plainly

Upload an offering memorandum, rent roll, T-12, debt quote, lease schedule, operating statement, or a spreadsheet. Altyst reads PDF, Excel, CSV, Word, plain text, and even a photo of a page.

Yes. A scanned or image-only PDF is read with built-in optical character recognition, so a rent roll that arrived as a photograph of a printout is handled the same way as a native spreadsheet.

Marketed vacancy in an offering memorandum rarely matches the rent roll. Altyst resolves each figure from the most authoritative document for that figure, the rent roll for units and rents, the T-12 for expenses, the offering memorandum for price, and then tells you every place they disagreed and which source it used, so you can settle it yourself. Values you entered are kept, with a note when a later document disagrees.

No. A deal can start from the property and your own assumptions, and documents can be added at any point afterward. Uploading a document is not what creates a deal and it is not what is metered.

Multifamily, single-family and short-term rental, office, medical office, retail, industrial, flex, warehouse, self-storage, mixed-use, hotel, and land or development. Each carries the leasing, debt, and returns it needs, on one engine.

No. Altyst runs in your browser. Bring your documents and start underwriting.

The financial results are computed by a tested, deterministic engine in exact decimal, not by a language model. AI is used only to read your documents and propose values, which you review. The same inputs always produce the same result.

It reads documents and proposes values. Every proposed value is flagged in the model with its source and a confidence signal for you to review or override, so nothing arrives unmarked. It never performs the calculation: every financial result comes from a deterministic engine in exact decimal arithmetic.

Yes. Loans are sized on a loan-to-value cap, a minimum debt service coverage test at a stress rate, or a debt yield floor, whichever binds. Altyst supports an interest-only period, amortization, senior and mezzanine tranches, and a bridge to refinance with cash-out, and reports coverage and debt yield by year.

Base, upside and downside cases run side by side. Two-way sensitivity grids sweep the drivers that move the deal, and reprice solves for the bid that hits your target return, or reports that no price in a sensible range around the asking reaches it, which is an answer too.

Yes. Distributions can flow through a waterfall with a preferred return, return of capital, an optional general partner catch-up, a residual promote, and multiple internal rate of return hurdles. It is off by default.

Yes. You can write live formulas in cells, pin any year or month, and add custom lines. Change any input and the whole model recomputes on the spot, and clicking a figure shows the formula behind it.

Pre-tax returns are the headline, which is the institutional standard. Turn on the after-tax view on any deal and enter your own rates: it models straight-line and bonus depreciation, passive-loss carryforward, and depreciation recapture plus capital gains at sale, with an optional 1031 exchange that defers the sale taxes. Because tax depends on your entity and basis, it uses the rates you provide and shows every figure with its formula.

Yes. Change any input and the whole model recomputes on the spot. You can write live formulas in cells, pin any year or month, and add custom lines. Exports include a full Excel workbook with live formulas and an investment summary PDF, both reconciled to the app.

An Excel workbook on live formulas, a one-page investment memo PDF, an editable PowerPoint deck, a deck PDF, a lender package, and an offering summary. Every one reconciles back to the model. Exports are included on every plan and are never metered.

Live formulas. The workbook recalculates as you edit it, which is the point: a lender or an investment committee needs to interrogate the math rather than accept a rendered conclusion.

A deal is one underwriting you create in Altyst. It counts when the deal is created, whether or not you upload a document, and deleting it later does not return the credit. If creating it fails, nothing is counted. Unused deals roll over to the next month, and each plan also has a ceiling on how many new deals it can start in a month. Monthly pricing is final; see the pricing page for the current plans and structure.

No. Unused deal credits roll over and add to the following period's balance. Nothing is clawed back at renewal.

Everything you have already built keeps working, and every model, edit and export on your existing deals is untouched. To start another one you can buy an additional deal credit from your account at your plan's published rate, upgrade the plan, or wait for your renewal, when the next month's included deals arrive and any unused ones carry over.

New deals resume on the first of the next month. Buying an additional deal does not raise the current month's ceiling, because the ceiling is checked before the credit pool; the purchased credit stays in your balance and is spendable next month. Everything you have already built keeps working.

That deal's new document reads and property research pause, and nothing else changes. The model is complete and correct from the deterministic parse, every figure stays editable, and your other deals are unaffected, because each deal carries its own AI allowance rather than drawing on a shared monthly pot. Modeling, recompute and exports are never metered.

There is no free tier, and you still do not have to pay to see the product work. Every new workspace is seeded with a worked 24-unit multifamily sample deal built on fabricated figures. Sign in with Google or Microsoft and you can open that deal, run the whole model, click any figure to see the formula behind it, and download its Excel workbook and summary PDF, with no card on file. Creating your own deals, uploading documents, and AI document reading start when you choose a plan.

Yes, from your account, with no cancellation fee. After cancellation your workspace, deals, models and exports stay accessible; only new paid processing is paused. Plans bill monthly in advance and renew automatically until you cancel.

Stripe is the merchant of record for all purchases and issues the receipt. Altyst never receives your card number.

Your deals and documents belong to your workspace, with role-based access and enforced isolation. Documents are not sold and are not used to train third-party models. You can delete a deal or your workspace, which removes the underlying files. See the security page for details.

No. Uploaded documents belong to your workspace. They are not sold and are not used to train third-party models. Raw document content, extracted text, and full prompts and responses are never retained in logs.

Application data and backups run on hosting in the United States, and documents and exports are stored in Amazon S3 in the US West region. The full list of subprocessors is published on the legal pages by name.

No. Altyst holds no SOC 2, ISO 27001, or comparable third-party certification, and the security page states that directly rather than implying otherwise. What is in place is described there in specific terms: workspace isolation enforced at the database level, role-based access, encryption in transit and at rest, and deletion as a real operation with a record.