Software comparison
Ninety vs Bloom Growth: seats or flat fee
These two products model the same weekly rhythm and charge for it in opposite ways. One bills a small amount for every person you add. The other posts a flat monthly membership with unlimited seats. For a leadership team of six the first is far cheaper. The arithmetic turns somewhere between twenty and thirty people, depending on whether Ninety's discounted rate or its regular one applies, and past that point it turns hard.
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01
The short answer, then the reasoning
Count the people you would actually give a login to, then do the multiplication before you read another feature list. Below about thirty seats at Ninety's discounted rate, or about twenty at its regular one, Ninety is the cheaper purchase by a wide margin. Above that the flat membership starts winning, and it keeps winning as more departments join. Everything else about this pairing is a smaller decision than that one.
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Ninety, checked August 2026, posts four plans charged for each person every month. The free plan is zero. The three paid plans are Essentials, Accelerate and Thrive, listed at $8.40, $9.80 and $11.20 against higher regular prices of $12, $14 and $16. The thirty day trial runs on the top plan and asks for no card. Registered nonprofits pay half.
Bloom Growth prices the other way around. Its page, checked the same month, lists three memberships by the month rather than by the head: Core at $299, Scale at $499 and Flourish at $999, and it states unlimited user seats at every tier. A coaching add-on starts at $2,500 a month and puts one of the company's own coaches alongside the software. There are month to month plans with no long contract, and annual plans that lock the rate.
Run the numbers on a real company. Ten seats on Ninety's middle plan is about $98 a month at the discounted $9.80, or $140 at the regular $14. Bloom Core is $299 either way. At forty seats it is roughly $392 against $299 discounted, and $560 against $299 at the regular rate. Which rate you get decides whether the crossover lands near thirty seats or near twenty, so read your own quote before trusting the round number.
That last sentence is the whole strategic question hiding inside this comparison. Per-seat pricing quietly discourages you from inviting the department manager who would benefit most. A flat fee does not. Whether that matters depends on how far down the company you intend to push the meeting.
| Question | Ninety | Bloom Growth |
|---|---|---|
| How it charges | For every person with a login, every month, on a plan you pick from four. | A flat monthly membership with unlimited seats included, on a plan you pick from three. |
| Published prices | Free at zero, then $8.40, $9.80 and $11.20 for each user each month, shown beside regular prices of $12, $14 and $16. | Core at $299 a month, Scale at $499 and Flourish at $999. Coaching can be bolted onto any tier from $2,500 a month. |
| Where the cost crosses over | Cheaper for small leadership groups. About $98 a month at ten seats on the middle plan, or $140 if the regular rate applies rather than the discounted one. | Cheaper once headcount climbs. The same $299 covers ten people or eighty, so the per-head cost keeps falling. |
| Free tier | Yes, and unusually complete: the vision organizer, the seat chart, the assessment tools and a read-only library, all free and with no expiry. | None published. The site offers a free trial of a membership rather than a plan you can sit on forever. |
| Method it follows | Built around the six components and licensed since 2023, then widened so the same account can run other operating systems. | Describes itself as compatible with several systems and sells custom terminology on its top tier, so the vocabulary can be renamed. |
| What the top tier buys | API access, custom assessments, an assistant that drafts summaries, and the right to author internal reference pages. | Renamed terminology, AI-generated insights and a priority success manager, on top of everything in the two lower memberships. |
| Coaching | Not sold by the vendor. A separate partner program routes companies to independent coaches and implementers. | Sold directly as an add-on from $2,500 a month, with the coach positioned as an operational second pair of hands. |
| What you can read without an account | A public glossary of roughly eighty five terms, plus articles, recorded sessions and support documents, none of it behind a form. | Marketing and product pages plus a blog. The company ran for years under an earlier name, so older material sits under that brand. |
| Trial | Thirty days on the top plan with no card required. | A free membership trial is offered. The page does not state its length. |
| Who it suits | A leadership group in single or low double digits that wants a small bill, plus a free plan to fall back on if budgets tighten. | A company past about thirty logins, or one that wants software and a coach on a single invoice. |
02
Where this comparison usually goes wrong
Buyers compare the headline numbers without deciding how many people will be inside the tool, which is the only input that matters. They also read unlimited seats as an invitation to give everyone a login, and they underrate what bundled coaching does to a decision that should stay independent.
The seat count question is not really a budget question. It is a design question about how deep the rhythm goes. If the answer is the leadership team plus a couple of department heads, that is nine or ten people and the per-seat bill is trivial. If the answer is that every manager runs the same weekly meeting with their own team, you are at forty logins within a year and the flat fee looks obvious in hindsight.
Unlimited does not mean everyone should be in there. A weekly number sheet with sixty spectators is worse than one with nine participants, because the people who own rows start writing for an audience instead of for the meeting. Give logins to people who own something on a page. The rest can be shown the outcome.
Bundled coaching is the one to think hardest about. Buying the software and the coach from the same company is convenient and removes a procurement step. It also means the person telling you whether the system is working has a commercial interest in you keeping the subscription. That is not an accusation, it is a structural fact, and the usual answer is to keep the coach independent of the tool. Our page on choosing an implementer covers the questions that surface this.
Neither vendor is EOS® Worldwide, and neither product makes an implementation succeed on its own. This site is not connected to EOS Worldwide either.
Ninety against Success.co
The other head to head: two licensed products, one broad and one deliberately narrow.
02All five products at once
The roundup, covering the official product and the one built inside Microsoft Teams.
03Choosing an implementer
The questions to ask a coach, and the answers that should end the conversation early.
03
Switching, and the point at which it is worth the disruption
Most companies switch in one direction, from per-seat to flat, and they do it when the invoice crosses a line somebody notices. The move itself is a few hours of retyping. The argument for waiting is that a migration costs a month of meeting quality, and no team should pay that for a saving of a few hundred dollars a year.
Set a trigger rather than agonizing. Something like: when the monthly software bill passes the flat membership by a third, we look again. Below that the saving is real but small, and the disruption of moving is not. Above it the gap compounds every time you add a person, and the case makes itself without a spreadsheet.
The migration is unglamorous. Rebuild the plan and the org chart by hand, retype the quarter, then bring the last two months of weekly numbers so the sheet opens with a trend rather than a single reading. Older history goes into a spreadsheet nobody will look at, which is fine, because in practice nobody does.
Running both is not a strategy. Two homes for the same weekly number sheet means the meeting turns into a reconciliation exercise, and the least diligent copy becomes the one people quote. Allow a short overlap while you move, declare one of them read-only on day one, and put the shutdown date in the calendar before you start.
One thing that does not transfer either way is the habit. If the rhythm is shaky, changing tools will feel like progress for two weeks and then leave you exactly where you were, with a different invoice.
Start with a real question
Not sure how many seats you will really need?
Give us your current leadership headcount, say whether departments will run the same weekly meeting, and when you expect that rollout to begin. We will do the arithmetic with you and say which pricing model comes out ahead, including the case where you should stay on a spreadsheet another quarter.
A person reads every one.