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We Conquered the Lag: The Freewrite Firmware that Transforms Typing on E Ink

Annie Cosby
November 19, 2025 | 3 min read

Introducing the Freewrite firmware that makes typing on E Ink as smooth and fast as thinking.

It's named after the fastest fish in the ocean for a reason.

Write at the Speed of Your Thoughts

Sailfish is a full top-to-bottom rewrite of the software that runs onΒ Smart Typewriter and Traveler.

In software, the common wisdom is that a rewrite is almost never the answer.Β Turns out that sometimes, it’s the only option.

In 2015, we started the Freewrite journey by creating a distraction-free writing environment using a brand new technology (at the time) that allowed us to use standard web development languages (i.e. JavaScript). We picked an architecture that made sense for us at the time, choosing speed of development over performance.

Well, startup life isn’t easy, and we stayed on that software architecture a lot longer than any of us expected. We did many optimizations over the years but none could match the performance of a native application.

So, we decided to burn it all down and rebuild.

It was the only way to move forward with the advanced features we dream about creating. But doing a full rewrite was a big project! (Kind of like rewriting your novel from page one. 😰)

The software needed to work on two similar but unique hardware platforms, and it needed to provide the same core Freewrite experience β€” but vastly improved. We also didn’t want to launch missing any features.

It took a full year of daily effort from the entire Freewrite team, especially our small team of firmware developers, to rewrite the platform. (Which we did in Rust, for you software nerds out there.)

The result is better than we could have hoped for:

πŸƒ Latency is virtually gone.

Sailfish is 40% to 100% faster from key press to a character showing on the display.

In practical terms, that means it takes about half the time for a character to appear.

Or, as one beta tester put it:

β€œThe new firmware makes typing laptop fast. […] Hard to believe it's still E Ink.”

Beta Tester Mark L.

πŸ”‹ Battery life is dramatically improved.

While typing, power consumption is 30% less. While idle, power consumption is up to 50% less!

Yes, all from a pure software update.

This means dramatically improved battery life in all situations AND dramatically improved performance.

"I have to admit, I’m astonished by the improvement.”

Beta Tester Michael J.

⏱️ Every single operation is faster.

Waking, sleeping, changing drafts, navigating, it is all done without a hiccup.

Switching between drafts is a lot faster, as well as using the β€œnew” + β€œpg up/down” features. Now you can move throughout your drafts at the speed of thought.

Booting up is faster, too, even with the addition of a brand-new animation by artist Mathias Lynge designed to help you center yourself before your writing journey begins and celebrate what this update means for Freewriters.

"I've always been told that E Ink couldn't give instant responses without lag, and now with this update I can finally tell people that's not true."

Beta Tester Will B.

This firmware is more than an update. It's a modern foundation for the future.

This is a brand-new starting point for the Freewrite family. It will enable us to build upon it in brand new ways and continue improving the Freewrite experience ecosystem beyond what has previously been possible.

We're super proud of this monumental effort by the team and can't wait for you to experience it on your own Freewrite Traveler or Smart Typewriter.

Don't take our word for it. Download 3.0 today.

The best part is that all of this new performance is 100% free to you and will be available via over-the-air update for:

  • All Traveler models, including Ghost
  • Smart Typewriter Gen 3 (including Ink, Lemon, and Mint)
  • Hemingwrite Gen 3
  • Valentine

Note: Alpha uses a different screen and software base. The performance on Alpha’s LCD panel is already optimized.

Firmware rolls out automatically and will be available on your device when connected to Wi-Fi. You can also manually check for an update using these instructions:

For a full list of firmware improvements and fixes, please visit our Release Notes page.

Write on!

The Freewrite Team

Β 

P.S. With every firmware update, we also add another classic author to the screensaver lineup. Last time, it was Agatha Christie. Who can name the new writer this time around?

We’re all just dreaming the impossible dream every time we face the keyboard!

P.S.S. Love the new bootup animation? Read all about the animator, Mathias Lynge, here.

September 29, 2026 • 2 min read

Official Rules for the Promotion

No purchase necessary to enter or win. A purchase will not increase your changes of wining. Void where prohibited or restricted by law.

1. Eligibility

The "Hemingwrite Giveaway" ("Promotion") is open only to legal residents of the 50 United States and the District of Columbia, who are 18 years of age or older at the time of entry. Employees, officers, and directors of Astrohaus ("Sponsor") and its affiliates, subsidiaries, advertising and promotion agencies, and their immediate family members (spouse, parents, siblings, and children) and/or those living in the same household are not eligible. The Promotion is subject to all applicable federal, state, and local laws and regulations.

2.Β Promotion Period

The Promotion begins at 8 a.m. EST Sept 1, and ends at 11:59 p.m. EST on September 30 ("Promotion Period"). Sponsor's computer is the official timekeeping device for this Promotion.

3.Β How to Enter

There are two (2) ways to enter:

a) Purchase Method:

During the Promotion Period, fill out the form here: https://getfreewrite.com/a/ps/landing_pages/28761/hemingwrite-giveaway-2026Limit one (1) entry per person.

4.Β Prize

One (1) Grand Prize: A Freewrite Ernest Hemingway Special Edition Smart Typewriter (value $1,099.00 USD).

Approximate Retail Value (β€œARV”): up to $1,099.00 USD.

5.Β Winner Selection

One (1) potential winner will be selected in a random drawing on or about October 1, from among all eligible entries received during the Promotion Period. Odds of winning depend on the total number of eligible entries received.

6.Β Winner Notification

The potential winner will be notified by email within five (5) business days following the drawing. The potential winner may be required to complete and return an Affidavit of Eligibility, Liability & Publicity Release within seven (7) days of notification. If a selected winner cannot be contacted, is ineligible, fails to claim the prize, or fails to timely return the required documents, the prize may be forfeited and an alternate winner selected.

7.Β General Conditions

By participating, entrants agree to abide by these Official Rules and the decisions of the Sponsor, which are final. The Sponsor reserves the right to cancel, modify, or suspend the Promotion if it becomes technically corrupted or cannot be conducted as planned. The prize is non-transferable. All federal, state, and local taxes are the responsibility of the winner.

8.Β Limitation of Liability

Sponsor is not responsible for lost, late, misdirected, damaged, or illegible entries or for any technical or human error that may occur in the administration of the Promotion.

9. Privacy

Any personal information collected will be used in accordance with the Sponsor’s Privacy Policy located at https://getfreewrite.com/pages/privacy-policy.

9. Sponsor

Astrohaus
1632 1st Avenue #29179
New York, NY 10028

September 18, 2026 • 5 min read

I spent a decade correcting people's grammar. (Not in an insufferable way. I was getting paid to do it.) Now I write without correcting my own.

September 18, 2026 • 7 min read

Whether he's acting or writing, Wesley MacInnes finds a starting point for each creative project in freewriting.