Polly review
Polly is a Mortgage Pricing Engine product. MortgageTechReview scores Polly 4.0 out of 5.0, ranking Polly #4 of the 12 products tracked in Mortgage Pricing Engine Software, as of August 11, 2026. Scores on MortgageTechReview are weighted across five axes and are never paid for or influenced by a vendor relationship.
Polly built a pricing engine, then bolted a loan trading exchange onto it. A loan is priced and locked, then sold, without leaving the platform. The differentiators are practical: configuration version control, historical replay, no-code product launches and a mobile interface officers use. Backers include 8VC, Menlo Ventures, Khosla Ventures, Fifth Wall and First American. The trade against Optimal Blue is thinner published investor coverage and fewer named integrations. Choose it when configuration agility matters more than the longest investor list.
How Polly compares to Optimal Blue
Ranked first in PPEOptimal Blue currently scores highest in PPE, so every other product in the category is compared against it here. That is a ranking on our published rubric rather than a recommendation, and it changes when the scores change. Category Leader
| Axis | Polly | Optimal Blue |
|---|---|---|
| Production impact | 3.8 | 4.9 |
| Functionality & depth | 4.4 | 4.9 |
| Integrations & ecosystem | 3.7 | 4.9 |
| Adoption & support | 4.1 | 4.4 |
| Return on spend | 3.8 | 4.0 |
| Overall | 4.0 | 4.8 |
Polly wins 0 of 5 axes against Optimal Blue, on the weight profile published for this category. Full head-to-head →
Where it wins
- Version control plus replay reprices old scenarios against the setup live at the time
- No-code deployment lets the secondary desk launch products without vendor involvement
- The Loan Trading Exchange carries the platform past lock into sale and delivery
- Investors include 8VC, Menlo Ventures, Khosla Ventures, Fifth Wall and First American
Where it falls short
- Publicly names few technology partners: LendingPad, Vesta, Cordless and Uplist
- Investor coverage is stated as hundreds, with no specific count published
- No pricing, no per-loan figure, no volume bands, no implementation range published
- The line stops short of hedging: no hedge advisory or trade management module described
Why it scores 4.0
Scored on the Pricing & Eligibility weight profile. The number shows where it sits in this category. It rests on evidence anyone can check, including the vendor's own record. The weights →
Production impact
25% of scorePolly’s published evidence is thinner than the incumbent’s: one case study citing a 12% profitability increase alongside faster configuration. The mechanism is credible. No-code deployment means a product change goes live when the desk decides, not when a vendor ticket clears. The trading exchange keeps the loan on the same platform through sale. Customer announcements through 2024 and 2025, including American Financial Resources, point to production lenders rather than pilots.
Functionality and depth
35% of scoreThe engine itself is the case. Rule configuration without folder hierarchies, version control, and historical scenario replay, so an old scenario reprices against the configuration that was live at the time. That is what wins disputes. Best execution with customisable blending sits alongside lock desk automation covering extensions, re-locks, float downs and post-lock product changes. Coverage runs conforming, government, HFA, non-conforming, non-QM, construction and portfolio. The line stops short of hedging: no hedge advisory, no trade management.
Integrations and ecosystem
20% of scorePolly describes flexible APIs that map standard and custom fields to any LOS. Named partners are recent and few: LendingPad, Vesta, Cordless and Uplist. Investor coverage is stated as hundreds, without a figure. Next to the breadth Mortech publishes or the investor count Optimal Blue publishes, that is a shorter public record. A buyer on a less common LOS should get the mapping work scoped before signing anything.
Adoption and support
10% of scoreThis is where Polly separates itself. The interface is built for the people who configure pricing, not for administrators trained into it. Mobile access is a first-class feature, and no-code deployment removes the vendor from day-to-day changes. A board that includes Jonathan Corr and Andrew Bon Salle suggests operating discipline beyond the usual venture-stage pattern.
Return on spend
10% of scoreThe argument: faster configuration and better execution produce margin the incumbent’s contract price would otherwise consume. The 12% profitability figure is a single vendor-published case study, not a benchmark. Expect to pay competitively against the market leader. The recovery comes through desk time and product agility, not a lower headline licence.
On price. Quote only. Polly publishes no tiers, no per-loan figure, no volume bands and no implementation range. Every enquiry routes through sales.
