Send Letters Online: print and post, $5.2K in 30 days, same-day cut-off

An online service for printing, folding, franking and posting letters through Royal Mail. Its $5.2K in the last 30 days is verified through the payment provider's API by TrustMRR (Stripe), as of September 30, 2026.

What it actually sells

Send Letters Online lets customers type or upload a letter and choose a Royal Mail service. The service then handles printing, folding, franking and handing the letter to Royal Mail.

The target users are UK customers who want to send letters without using a printer or visiting a post office. Orders placed before the 1:30 pm cutoff receive same-day despatch.

How it charges

Customers pay per letter, with no monthly fees or setup costs. Printing, folding, franking and postage are included. Royal Mail Second Class starts at £2.99, with First Class, Tracked 24, Tracked 48, Signed For and Special Delivery also available.

Month by month

Monthly revenue as read from the payment provider by TrustMRR, in US dollars, as of September 30, 2026.

Month	Revenue (USD)
2026-05	$647
2026-06	$3,381
2026-07	$4,637
2026-08	$5,773
2026-09	$5,162

Where customers come from

The site presents the service to users sending letters from anywhere in the UK. It positions the service for people who do not have a printer or want to avoid a post-office visit. No customer acquisition channels are disclosed.

What stands out

The full posting workflow is covered: customers provide a letter, and the service handles printing, folding, franking and Royal Mail handover. Customers can choose from several Royal Mail services, including Tracked 24, Tracked 48, Signed For and Special Delivery.

The site also states same-day despatch for orders placed before 1:30 pm. The service is available to users sending letters from anywhere in the UK.

From the official site

Send letters online from anywhere in the UK.

We handle the printing, folding, franking, and handing over to Royal Mail.

Excerpts from the official website, fetched October 1, 2026.

Where it sits in the data

Send Letters Online's $5.2K in the last 30 days is higher than 90% of the 5,602 projects with payment-verified revenue in our dataset; the median across them is $150. Within the “Customer Support” category (188 projects) it is higher than 88% (category median $274). Snapshot: 2026-09-02 to 2026-09-30. The dataset only covers founders who chose to publish their numbers, so it leans toward businesses that work; use it for scale, not as an average.

Currency

All figures are in US dollars as published. A rough yuan or euro conversion is not applied here because prices, taxes and acquisition costs differ by country.

Could you build something like this?

In my view, demand would come from UK users who need to send physical letters without access to a printer or a convenient post-office visit. Buyers could include individuals, while businesses could use the service for recurring correspondence.

The difficult parts would be postal operations, Royal Mail integration, compliance, pricing and customer support. Competition and support load would matter as the service grows.

Verdict: Needs real work.

One thing to take from it

Send Letters Online combines per-letter pricing with a complete Royal Mail posting workflow. Customers choose a letter and delivery service, with printing, folding, franking and postage included in the price.

Sources

Send Letters Online official website, fetched October 1, 2026
Send Letters Online pricing page, fetched October 1, 2026
Send Letters Online about page, fetched October 1, 2026
TrustMRR: revenue verified through the payment provider's API by TrustMRR (Stripe), as of September 30, 2026

Revenue, team and start-cost figures are what the founder reported at the interview date, not current figures and not a prediction of what you will earn. Product and pricing facts come from the business's own website as checked on 30 September 2026. Method & sources · Disclosure