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SWUpdate vs Memfault

How SWUpdate and Memfault differ on target hardware, rollback, deployment and cost.

SWUpdateMemfault
TypeOSS Linux updaterMCU observability + OTA
TargetsEmbedded LinuxMCU + embedded Linux
DeploymentOn-device (no server)SaaS
RollbackConfigurable: A/B, single-copy, or rescue, with bootloader integrationCohort-based staged rollout; halt on crash-rate regression
How it worksA configurable updater invoked on the device. You describe the update in a sw-description file, and it handles verification, signature checking and writing to the right place — U-Boot, GRUB or EFI integration decides what happens on a failed boot. There is no management backend; pair it with hawkBit or your own.Devices upload coredumps, metrics and reboot reasons. Releases go to cohorts, and the crash signal tells you whether to continue or stop — which is the part every other platform leaves to you. OTA is one feature of an observability product, not the whole product.
Pricing*FreeFree to 10 dev devices; from $3,495/mo
Free tierYesYes
Open sourceGPL-2.0Firmware SDK (Apache-2.0)
Best forCustom update logic on Yocto buildsTeams who need to know why devices fail

SWUpdate

  • Extremely flexible update strategies
  • Tiny footprint, no runtime service
  • Signature verification and encryption built in
  • No fleet management whatsoever
  • Configuration is expert territory

Memfault

  • Coredump analysis on constrained MCUs is genuinely hard and they do it well
  • Rollouts driven by real crash data, not hope
  • Strong chip-vendor integrations
  • Paid tiers start far above hobby or small-fleet budgets
  • Observability is the product; OTA alone is an expensive way to buy it

Bottom line

Choose SWUpdate for custom update logic on yocto builds. Choose Memfault for teams who need to know why devices fail.

* Published list pricing (vendor pricing pages, August 2026).