Typical models can't see the content you send. Chorus measures every open, click, gift, and unsubscribe against the content behind it, and predicts how each supporter will react to the specific message you're about to send. Enter your program's numbers to see what that is worth.
Replace the sample values below with your own organization's numbers.
How we count this. The value we calculate is what topic routing, strategic suppression, and sustainer saves would be worth if every send used them. We size each one from patterns in our past studies and apply it to your numbers. These are opportunities we calculated. A pilot measures the actual lift in your program.
No program captures all of it. Mission messages and legal or operational notices go to everyone, whatever the response. Some weeks there's nothing new on a supporter's top topic. Teams roll changes out over months, and the model can't see everything your team knows. We assume you capture 25% to 50%.
When the value arrives. Topic routing raises gifts in the same year. Strategic suppression and sustainer saves also count future giving, from supporters who stay on your list and sustainer gifts that keep coming after a save. Figures are a yearly run rate once the interventions are live; year one runs lower while the pilot is in market.
Not included: direct mail and ads. Strategic suppression works the same way in direct mail, and each piece not sent saves printing and postage. In ads, the same scores point spend at the people most likely to respond, so the same budget brings in more. We left both out of this calculator.
Each study sizes the opportunity in the organization's own data, shown here at 25% to 50% capture. Clients are described by type and labeled A to C throughout the page.
| Organization | Revenue lift | Value per year | Where most of it comes from |
|---|---|---|---|
| Client ANational human-services nonprofit | +8% to +46% | $299K to $1.64M | Sending each donor the ask on the cause they care about |
| Client BNational advocacy nonprofit | +7% to +21% | $253K to $715K | Right-sized asks and topic routing |
| Client CRegional environmental nonprofit | +10% to +23% | CA$23K to CA$52K | Asking the donors most likely to become sustainers first |
A study gives you a picture of your audience you can act on immediately, whether or not you go further. At our two national clients, the changes the team could make on its own were worth several times the study price each year.
We've seen these across existing clients and expect to see them in future ones. How big each one is varies by organization, which is why every engagement starts with a study.
Copy, tone, and the shape of the ask mattered in every study, and what wins differs by organization. We recommend an A/B test first and leave these out of the ROI. The differences can be large.
Gifts from $250+ donors on impact-math asks ("$1 provides...") compared with standard asksClient A, year-end only, next to a match offer
Gifts on asks at 1.5x to 2x the donor's last gift, against asks at 2x or moreClient B
Gifts in a randomized match testClient A
Actions on emails that name a specific placeClient C
Gifts from active donors on copy written to "you" instead of "we"Client A
Threat framing saw more gifts than solidarity framingClient B
Every organization is different. These are the interventions we run with clients today, and the three the calculator counts.
Write a few more versions of the ask, and send each supporter the one closest to what they care about.
Keep your own business rules, and hold back the people unlikely to give and likely to leave.
| Per unsubscribe | 25% capture | 50% capture |
|---|
Reach sustainers before the gift stops, and ask the one-time donors most likely to become sustainers.
Every program is different. The study finds which of these patterns matter most in your data and sizes each one.
We run the top intervention against a holdout for one to two months, so you see your own lift before you commit.
We add the top interventions one at a time so your team isn't overwhelmed. $10 per 1,000 supporter records a month, across email, SMS, and other channels.