Asymmetric is building a custom ROI calculator suite for [1] to support their Voice Agent sales process. The tool allows Aaron to walk prospects through quantified ROI estimates during live sales calls, with per-prospect branding for ABM use cases. Long-term, the calculator is intended to serve as a gated lead magnet on the Aviary website.
After evaluating off-the-shelf options, the team chose to build a custom Next.js React application for full control over formulas, UI, and branding.
| Option | Verdict | Reason |
|---|---|---|
| Outgrow.co | Rejected | Limited formula control; forces shoehorning into existing templates |
| Shout | Considered | Supports spreadsheet-to-calculator import; still constraining |
| Custom Next.js app | Selected | Full control over formulas, layout, branding, and URL structure |
The custom build takes roughly one day of development time and produces a significantly more impressive artifact than a third-party embed.
The suite covers multiple Aviary Voice Agent use cases, each with its own dedicated URL:
An overview/landing page lists all available calculators. Each calculator is also directly accessible via its own URL, so Aaron can deep-link to a specific one during a sales call.
A key feature for ABM sales calls: the app supports per-prospect customization at the URL or session level.
This allows Aaron to open a calculator that already looks tailored to the company he's pitching, increasing perceived personalization without manual redesign work.
Once the sales-call version is stable, the calculator can be repurposed as a gated resource on the Aviary website:
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