LAUNCH·INDEX

RainbowSay

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EDUCEducation & Learning·HNShow HN
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Breakout launch

Beat 95% of Show HN launches that day

#7 of 150 on Oct 26

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120 (0.0%)

points · traction gained Oct 30, 16:20 UTC → Oct 31, 15:35 UTC

Still tracked: re-read by each daily run while under ~168h old (window closes ~Nov 2, 01:08 UTC).

4

comments · buzz 0 in latest interval

7d

listed Oct 26, 01:08 UTC

Traction (points) over time

01020Oct 26Oct 27Oct 28Oct 29Oct 30Oct 31ListedOct 26, 16:23 UTC · 10 points · 2 comments · 15h after listingOct 27, 16:09 UTC · 12 points · 4 comments · 39h after listingOct 28, 16:45 UTC · 12 points · 4 comments · 64h after listingOct 29, 16:38 UTC · 12 points · 4 comments · 88h after listingOct 30, 16:20 UTC · 12 points · 4 comments · 111h after listingOct 31, 15:35 UTC · 12 points · 4 comments · 134h after listing
6 readings (one per daily ingest run). Dots are recorded values; lines just connect them — nothing in between is measured.

Key statistics

Traction
12points
Comments
4
Rank in EDUC this week
#1of 17 HN
Rank overall this week
#48of 998 HN
Sector hit rate
15.4%2/13 · 7D
Traction line
Hit10+ points
First reading
10Oct 26, 16:23 UTC
Last reading
12Oct 31, 15:35 UTC
Readings
6over 134h

Grades · each graded against other Education & Learning launches from the same source

Momentum

—

+0 points

Traction gained in the latest daily interval

Too few peers to grade (16; need 20)

Velocity

A

0.25 points/h

Votes per hour since listing (age capped at 48h)

Better than 96% · vs 67 Education & Learning · Show HN launches, last 30 days

Engagement

—

3.3 per 10 points

Comments per 10 points

Too few peers to grade (6; need 20)

Staying Power

—

1.2×

Votes at last reading ÷ votes at first reading

Too few peers to grade (7; need 20)

Launch-day race · #7 of 150 Show HN launches on 2026-10-26

  1. #5Wraps22 points
  2. #6A Minecraft mod that generates the world at 1:1 scale18 points
  3. #7RainbowSay12 points
  4. #8Ultimidi11 points
  5. #9Termcraft8 points
All launches on 2026-10-26 →

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Discussion

Read the 4 comments on Hacker News →

Others in this sector · top Show HN launches in Education & Learning by traction, last 7 days

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Data as of Oct 31, 2026, 3:03 PM UTC. Sector comes from keyword rules on the title and tagline and can be wrong. How it works