That's the amount raised in a funding round by Grammarly, a firm that boasts of having what it calls "the world's most accurate online grammar checker".
It has persuaded venture capital firms including General Catalyst, IVP and Spark Capital to support its platform.
The eight-year-old firm, based in San Francisco, offers "mistake-free writing every time" to 6.9 million users.
The start-up was founded in 2009 by Alex Shevchenko and Max Lytvyn.
Its software uses spell-checking, proof-reading and plagiarism detection tools, scanning text for the correct use of more than 250 advanced grammar rules.
But not everyone sees the need for Grammarly. One online reaction posted to the announcement of the firm's venture round was: "I rather learn to write without mistakes than let a program correct it" (perhaps inadvertently proving its usefulness).
On the other hand, Grammarly's efforts provide no guarantee that your prose will be a joy to read.
Its own website contains the sentence: "Enhance your sentences with Grammarly's context-optimized word choice suggestions to instantly improve the readability of your document."
Clearly split infinitives are safe from the software's forensic gaze.

The scam, which involves drawing the salaries of non-existent civil servants, is widespread, a BBC correspondent in Nigeria says.
But the government has recently been cracking down, removing thousands of "ghost workers" from its payroll.
Nigeria is Africa's biggest economy.
It is the continent's top oil producer, but its economy is currently under huge strain due to the recent collapse in oil prices.
The state has been able to save millions of dollars as a result of an ongoing verification of its workforce, the auditor general for Bauchi said.
Abubakar Gabi said that thousands of workers and pensioners did not appear for an exercise aimed at rooting out ghost workers and claimants.

The north Belfast derby could have a huge bearing on whether the Crues will retain the Irish Premiership crown.
The clash of two in-form sides is one of the biggest fixtures of the season.
Cliftonville have lost just one of the 19 league matches played since Lyttle took over in October while Crusaders have been beaten just once in 25 games.
"Cliftonville will come to Seaview and throw the kitchen sink at us," said Crusaders manager Stephen Baxter, who is without suspended striker Michael Carvill.
"We know that, and have to be prepared for it. We need to give back as much as we receive.
"It is a big match but there is a long way to go in this league.
"Our job is to concentrate on our own game and just get on with the task ahead of us."
Earlier in the campaign, Crusaders won 1-0 away to the Reds while the north Belfast rivals drew 2-2 at Seaview on Boxing Day.
"We have been on a good run for some time now," said Cliftonville manager Lyttle whose side beat Ards in last weekend's League Cup final.
"We had a wee blip with a number of draws but we have got things sorted out and are a team in form.
"Hopefully, we can drive on for the rest of the campaign."
Victory for Cliftonville would also be a boost to Linfield's ambitions of being the ones to deny Crusaders back-to-back titles.
David Healy's Blues, who lost 2-1 at Portadown last time out, go to Coleraine aiming to beat the Bannsiders for the third time this season.
"We had been on a nice little run before the Portadown game," said boss Healy.
"Portadown had been struggling but they have now taken six points from us. It shows how teams raise their game when they play Linfield.
"We must pick ourselves up and go on another unbeaten run."
There's money to be made from other people's mistakes: $110m (Â£85m) of it, to be precise.
[NEXT_CONCEPT]
Children as young as eight are being paid teaching salaries by the state as part of identity fraud in the north-eastern Nigerian state of Bauchi, officials have found.
[NEXT_CONCEPT]
Gerard Lyttle takes his Cliftonville team to Crusaders on Saturday confident of a victory which would move them to within six points of the leaders.