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r/Lightbulb↗

Redditors' Ideas

A community for sharing ideas, inventions, and plans.

118k subscribers91 posts / mo in Sep 202632 authors / mosince 2011

r/Lightbulb has 118k members (+4.6% over the last 12 months). It gets about 91 posts a month from 32 people. Top topics: Subreddit Navigation & Ideas, Navigation Apps & Maps and iMessage Tweaks & Features.

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Free report

When to post on r/Lightbulb

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Visitors without an account can open 3 subreddit reports a day. The best time to post on r/Lightbulb, removal risk and the rest of the report are one step away.

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Size and growth

How r/Lightbulb has grown

r/Lightbulb

Subscriber growth

Subscribers over time

+4.6%in 12 months · +0.6% in 3 months · +0.2% in 1 month
Oct 2026118k
Growing118k subscribers
Data since Mar 2018Live · through Oct 2026
r/Lightbulb

Monthly activity

Posts, comments and authors per month

+49%vs Sep 2025 · +69% last 3 months vs the 3 before
Sep 202691
BusierPeaked at 275 in Nov 2021
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/Lightbulb

Top topics

Share of the subreddit's posts

  1. Subreddit Navigation & Ideas0.3%
  2. Navigation Apps & Maps0.3%
  3. iMessage Tweaks & Features0.3%
  4. SpotifyAppsAndPlaylists0.2%
  5. App Reviews & Uses0.2%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. Apple
  2. ChatGPT

The full report

Everything else about r/Lightbulb

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

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Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research