February 20, 2026
Mailbox for your robot army
Show HN: Fostrom, an IoT Cloud Platform built for developers
Dev-friendly IoT cloud drops, commenters beg for plain English
TLDR: Fostrom launched a free-preview IoT cloud that promises easier device fleets and programmable actions. Commenters want plain-English value, real examples, and proof it tames messy hardware partners—while joking about “mailboxes for toasters” and side-eyeing the three-month free window.
Fostrom showed up on Show HN promising a developer-friendly cloud for internet-connected gadgets—think air sensors, trackers, and smart widgets—complete with simple code, “sequential mailboxes,” and free for three months. But the crowd’s mood? Curious, skeptical, and very “explain it like I’m five.” The top chorus: tell us the problem you actually solve. One commenter begged for a clear, punchy pitch over buzzwords, plus a before/after example to prove it’s faster than DIY. Another brought battle scars: integrating real-world hardware is a mess, with clunky apps, weird toolkits, and proprietary headaches. If Fostrom smooths that chaos, devs are listening.
Drama flared around pricing and promises: is “technical preview” the new “free trial,” or will teams get hooked and then sticker-shocked? Meanwhile, the term “sequential mailboxes” sparked jokes: a “post office for toasters” meme made the rounds, and someone dubbed Actions “IFTTT with steel-toed boots.” Still, the community gave props for focusing on device fleets and programmable reactions (like auto-alerts for bad air), asking for concrete demos, real scale numbers, and proof it survives messy partner ecosystems. Bottom line: interest is high, patience is low—the crowd wants fewer slogans, more receipts.
Key Points
- •Fostrom is an IoT cloud platform for developers, currently in Technical Preview and free to use.
- •It offers Device SDKs, type-safe schemas, and programmable actions to monitor and control device fleets.
- •Actions allow JavaScript code to react to incoming messages and trigger real-world effects.
- •Sequential Mailboxes ensure ordered, paced device message processing with built-in back-pressure.
- •Early adopters who start during the Technical Preview keep the service free for three months, with support via Discord or email.