The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

clear all ✕

why aren't all 10 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Assertion Supported
Monzo scaled to 500k users with unit economics of -£30 to -£40
“In the early days of Monzo, we were at -30 or -40 pounds per customer per year, and we scaled to half a million customers before we fixed them.”
Tom Blomfield Jan 6, 2024 ▶ 13:32 Consumer Startup Metrics | Startup School · Y Combinator
Disclosure
Blomfield: Monzo lost £30–£40 per user initially before turning profitable
“Monzo is an online bank in the UK, and for our first half a million customers or so, we were losing money on every customer, 30 or 40 pounds per customer. We scaled to more than half a million of those customers. It costs a lot, but we had a plan to turn it ro…”
Tom Blomfield Dec 15, 2023 ▶ 21:19 B2B Startup Metrics | Startup School · Y Combinator
Insight
Blomfield: Great companies bring meaning to their name, not vice versa
“And I think ultimately, the best companies bring meaning to the name often, rather than the other way around. Monzo doesn't mean anything.”
Tom Blomfield Nov 21, 2024 ▶ 18:37 Twitter vs. X: Product Lessons For Startup Founders · Y Combinator
Disclosure
Adding three friends at sign-up boosted Monzo retention by 20%
“Because we had a bank account, but also this Venmo-like functionality built into the product where you could send and receive money, customers who added three friends from their phone book to their Monzo account so they could send and receive money, as they si…”
Tom Blomfield Jan 6, 2024 ▶ 15:39 Consumer Startup Metrics | Startup School · Y Combinator
Assertion Supported
Blomfield: Monzo Reached 1M Customers Before Spending on Direct Marketing
“We got to a million customers at Monzo before we spent any money on direct marketing or advertising.”
Tom Blomfield Jan 6, 2024 ▶ 1:34 Consumer Startup Metrics | Startup School · Y Combinator
Disclosure
Blomfield: Monzo killed a cheap acquisition channel due to negative customer LTV
“Back at Monzo, we found a particular money saving blog that was very, very cheap to get users from. They sent us hundreds and hundreds of users when we were eventually paying for advertising. It seemed very, very cheap, but the customers, it turns out, were de…”
Tom Blomfield Jan 6, 2024 ▶ 7:41 Consumer Startup Metrics | Startup School · Y Combinator
Disclosure
Monzo defined active retention as at least one transaction per week
“So for Monzo, we chose one transaction, at least one financial transaction every week.”
Tom Blomfield Jan 6, 2024 ▶ 14:42 Consumer Startup Metrics | Startup School · Y Combinator
Assertion Supported
Blomfield: Monzo maintained an NPS between +75 and +80 during his tenure
“Monzo, for example, hovered somewhere between positive 75 and positive 80 while I was there.”
Tom Blomfield Jan 6, 2024 ▶ 18:36 Consumer Startup Metrics | Startup School · Y Combinator
Disclosure
Blomfield: Monzo Defined Weekly Active Users as Transacting Weekly
“So a weekly active user at my old company, Monzo, was someone who transacted, who made a financial transaction at least once a week.”
Tom Blomfield Dec 15, 2023 ▶ 5:00 B2B Startup Metrics | Startup School · Y Combinator
Assertion Supported
Blomfield: Monzo has grown to about eight million UK customers
“I was previously the founder of a consumer online bank called Monzo. It's now up to about eight million customers in the UK.”
Tom Blomfield Jan 6, 2024 ▶ 0:25 Consumer Startup Metrics | Startup School · Y Combinator
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