We build products and the companies around them.
Senternet is an independent studio. We ship focused, privacy-first software, and we do the rest of the build too: forming the company, the brand, the operations, and the go-to-market that turn a product into a business.
PremailMac · Windows · Linux · No account
ComojimacOS 13+ · Free · Signed & notarized
BurlymacOS · Keyboard-first · 100% local
HighwireWeb · Installable PWA · No account to read
StockCariOS · Free · No account
SeedMatrixWeb · 1.8M+ trial data points · 12 crops
BeeReadyNon-profit · Youth sports · CPR & AED
Products we build and run
Every product is small on purpose: one job, done exceptionally well, with privacy as a default rather than a feature.
Premail
Your inbox, defended.
Our privacy-first desktop app that filters email before it reaches your inbox. Spam, recruiters, and the daily noise get handled quietly. What is left is what actually matters.
Mac · Windows · Linux · No account
Comoji
Slack-style :emoji: autocomplete, everywhere on your Mac.
A tiny macOS menu bar app that brings colon emoji shortcuts to Messages, Mail, Notes, Safari, and most Mac apps. Type :liz, press Tab, get a lizard. Runs locally. Nothing you type is uploaded.
macOS 13+ · Free · Signed & notarized
Burly
Every link, in the right browser profile.
A native macOS menu bar app that routes every link to the right browser profile: work links to the work profile, personal links to the personal one. Fast, keyboard-first, and 100% local.
macOS · Keyboard-first · 100% local
Highwire
See beyond the headlines.
A news analysis service that reads a story across every outlet covering it, separates the claims from the narratives, and shows the evidence behind each one. Ten papers carrying one wire report count as one independent source, not ten.
Web · Installable PWA · No account to read
StockCar
A podcast of your portfolio, not the market.
An iOS app that turns the assets you actually hold (stocks, crypto, indices, and FX) into a short, personalized audio briefing with a cast of AI cohosts. No account, no brokerage linking.
iOS · Free · No account
SeedMatrix
Every variety, every trial, one clear comparison.
Independent variety trial intelligence for seed companies. SeedMatrix aggregates trial data across crops, regions, soils, and traits so a sales team can prove where a variety actually performs, down to the county, the soil, and the season.
Web · 1.8M+ trial data points · 12 crops
BeeReady
Lifesaving skills, one game at a time.
Our non-profit initiative teaching young athletes CPR, AED awareness, and emergency confidence, built directly into youth sports.
Non-profit · Youth sports · CPR & AED
All projectsThe team behind the products, on your project
We take on a small number of engagements, from a single app to a whole company. You get the people who design, build, ship, and operate the products above, and who stood up the nonprofit behind BeeReady end to end.
MVP development
Idea to shipped product in weeks: web, native macOS & iOS, and AI. A production codebase you own, built the way we build our own.
Learn moreFractional CTO
Senior technical leadership, part-time and hands-on: architecture, engineering hiring, delivery, and security posture.
Learn moreFractional COO
Operations leadership that runs the day-to-day: operating cadence, hiring, systems, and the execution that keeps a small team delivering.
Learn moreGo-to-market
Positioning, launch, an SEO-complete site, and content. The work that turns something built into something people find and use.
Learn moreHave something to ship?
Tell us what you're building. We'll tell you, plainly, whether and how we can help.
Get in touch