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ESPHome vs Grain

ESPHome logo

ESPHome

Software

Custom firmware for ESP8266/ESP32 smart home devices

From
Free
Rated
-
Full reviewWebsite
Grain logo

Grain

Software

AI meeting highlights and clips

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ESPHome eSPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects; Grain no concurrent recording - only one meeting per account at a time
  • They diverge on capability: ESPHome covers YAML Configuration, Grain covers Auto-recording.

Where they differ

Only the attributes on which ESPHome and Grain actually diverge.

Attributes where ESPHome and Grain differ
AttributeESPHomeGrain
Pricing modelopen-sourceUnknown
PlatformsESP8266, ESP32, Docker, Raspberry PiWeb, Chrome Extension, Desktop Audio Capture

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown), founded (2018).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ESPHome

  • YAML Configuration
  • OTA Updates
  • Home Assistant Native
  • Custom Components
  • Home Assistant
  • MQTT
  • API
  • Native integration

Only in Grain

  • Auto-recording
  • AI highlights
  • Video clips
  • Transcription
  • Zoom
  • Google Meet
  • Notion
  • Slack

What people use each for

The jobs each tool is most often brought in to do.

ESPHome

  • Building custom smart home sensors and switches on ESP32 hardwarenot Grain
  • Replacing vendor cloud firmware on ESP based devices with locally controlled firmwarenot Grain
  • Integrating DIY devices into Home Assistant over a native API or MQTTnot Grain

Grain

  • ai tools managementnot ESPHome
  • Workflow automationnot ESPHome
  • Reportingnot ESPHome

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ESPHome

  • ESPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects
  • Support for ESP32-H2, RP2040 and other newer chips is documented as less mature
  • Large displays and some sensors do not work well on ESP8266 because of its limited RAM, which is roughly a fifth of an ESP32

Grain

  • No concurrent recording - only one meeting per account at a time
  • No automatic slide capture for presentations
  • Limited video demo context - audio-focused with poor video file support
  • Cannot record in-person meetings
  • No native mobile app
  • Limited admin controls for company-wide automatic recording
  • Free plan limited to 20 recordings if using personal email
  • No automatic file uploads on free tier
  • Lacks advanced sales analytics features of enterprise competitors
  • Limited CRM integration compared to higher-end platforms

Pricing, plan by plan

ESPHome

Free
  • CommunityFree
    • Full firmware
    • Home Assistant integration
    • Custom sensors

Grain

Free
  • Free ForeverFree
    • Unlimited meetings up to 45 minutes each
    • AI transcription and notes
    • 90-day history
  • Starter$15/month
    • Unlimited meeting length
    • Unlimited AI highlights
    • Video clip creation
  • Business$33/month
    • All Starter features
    • Advanced team coaching
    • Deeper analytics

Which should you pick?

Choose ESPHome if

  • You need yaml configuration.
  • You want to start without paying.
  • You work on ESP8266, ESP32, Docker, Raspberry Pi.
  • You also want ota updates.
ESPHome review

Choose Grain if

  • You need auto-recording.
  • You want to start without paying.
  • You work on Web, Chrome Extension, Desktop Audio Capture.
  • You also want ai highlights.
Grain review

Questions people ask

Is ESPHome or Grain better?
Neither clearly leads. ESPHome starts at Free and Grain at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESPHome or Grain?
ESPHome starts at Free and Grain at Free.
Does ESPHome or Grain run on more platforms?
ESPHome runs on ESP8266, ESP32, Docker, Raspberry Pi. Grain runs on Web, Chrome Extension, Desktop Audio Capture.
Can I use ESPHome for free?
Both have a free tier, so you can try either at no cost before committing.
What is ESPHome best used for?
ESPHome is most often used for building custom smart home sensors and switches on esp32 hardware, replacing vendor cloud firmware on esp based devices with locally controlled firmware, integrating diy devices into home assistant over a native api or mqtt. Of those, building custom smart home sensors and switches on esp32 hardware and replacing vendor cloud firmware on esp based devices with locally controlled firmware are not what Grain is typically brought in for.
What can ESPHome do that Grain cannot?
ESPHome covers YAML Configuration, OTA Updates, Home Assistant Native, Custom Components. Grain covers Auto-recording, AI highlights, Video clips, Transcription.

Answered from the vendors’ own pages

Grain: Is Grain free?

Grain offers a Free Forever plan with unlimited meetings up to 45 minutes each and 90-day history. Paid plans start at $15/month per user for unlimited meeting length and advanced AI features.

Source
Grain: Does Grain require a bot in meetings?

No. Grain uses bot-less transcription to capture meeting audio without requiring a bot participant, though video recording requires bot participation if you want recording visible.

Source
Grain: What platforms does Grain work with?

Grain integrates with Zoom, Google Meet, Microsoft Teams, and supports desktop audio capture. It exports to Claude, ChatGPT, Slack, and CRM platforms like HubSpot and Salesforce.

Source
Grain: Can Grain record multiple meetings at once?

No. Grain does not support concurrent meeting recordings, meaning only one meeting per account can be recorded at a time.

Source
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Related pages

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