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Micro SaaS ideas

Markets with almost nobody bidding

The tiers where fewer than four published companies are buying attention at all.

Companies

16

Median revenue

$72K/mo

Median ad spend

$1,815/mo

Creative still live

19%

What is already selling

Every company in this space, cheapest to enter against first.

A thin tier is either an opportunity or a graveyard, and the difference is whether the few advertisers in it are still running creative. Both numbers are on this page. Treat a thin tier with high live share as a door nobody is guarding; treat a thin tier with dead creative as a market that has already been tried.

How this list is drawn: Every published company whose category holds three or fewer of them. Ordered by thirty-day ad spend, lowest first - what it costs to be visible against them, not who is biggest.

ET

Elegant Themes

Divi WordPress theme and builder plugins

$250$26.4K$3.3K – $208.2K-3.4%
CO

Coso.ai

AI drafts, edits and schedules a week of social posts for SMBs

$449$47.3K$6K – $373.8K-25.9%
AI

Aigogo

AI photo upscaler and enhancer

$482$22.7K$2.6K – $200.7K0.0%
ER

Eranker

SEO tool that ranks Etsy listings on page 1 of Etsy search

$746$78.7K$9.9K – $621.6K+40.0%
BW

Breakdance Website Builder

WordPress page and popup builder

$902$95.1K$12K – $751.4K-2.0%
ZI

Zipchat.ai

AI chat agent for ecommerce stores that sells and handles support

$911$96.1K$12.1K – $759.1K+116%
BC

Be Cool Pro

AI sports betting tips service for football and tennis matches

$1,251$30K$4.8K – $195.4K+29.6%
AI

Aicut

AI image/video generator keeping one character consistent across shots

$1,563$37.5K$6K – $244.2K-34.7%
HU

Huunooapp

App where local tradespeople and makers list skills to be found nearby

$2,066$26.7K$5.5K – $129.1K+148%
AM

AION MIND

AI journaling for personal growth with procrastination coaching

$2,348$56.4K$8.9K – $366.9K+193%
BU

Bubble

No-code visual app builder with AI-powered automation

$4,214$444.4K$56.2K – $3.51M+706%
CC

Christian Connection

Dating app for Christian singles seeking shared-faith relationships

$5,665$65.3K$15.1K – $283.3K-7.9%
MB

Moonlock by MacPaw

Mac malware detection and security tool from MacPaw

$9,347$224.4K$35.6K – $1.46M-21.0%
BT

BrightTrack

Companion app to track GLP-1 doses, side effects and habits

$11,073$127.7K$29.5K – $553.7K-12.2%
RE

Readability

Adaptive reading tutor app for kids that levels to the child

$24,103$277.9K$64.3K – $1.21M+32.3%
GI

GIO

AI headshot and portrait photo editor app

$26,616$306.9K$71K – $1.33M-65.3%

Revenue is modelled from measured ad spend, not reported by the company. The band beside each figure is the range the model produced and it is wide on purpose - the method page shows the arithmetic and says where it stops being reliable.

Cost of entry

Cheapest door in: $250 a month.

Elegant Themes - divi wordpress theme and builder plugins - is modelled at $26.4K a month on the smallest advertising budget in this space. That is the number to beat, and it is measured rather than claimed.

Median ad spend

$1,815/mo

What the middle company pays to stay visible.

Total spend, 30 days

$91,986

Across all 16, priced country by country.

Biggest here

$444.4K

Bubble sets the ceiling on the ambition.

Still serving

19%

Share of all creative ever run that is still live.

Where the buyers are

The markets this space is actually being sold into.

Reach-weighted across every advertiser in the cut, so one small company with a lopsided country mix cannot move the picture.

Italy27%
United Kingdom25%
Everywhere else18%
France15%
Spain9%

Which way it is moving

Budgets up, budgets down.

An advertiser raising a budget is the least ambiguous signal available from outside a company. It costs real money and nobody does it against a product that is not converting.

7 of 16 increased spend over the last thirty days; 5 cut it.

Questions

Markets with almost nobody bidding, answered.

Every answer below is computed from the 16 companies on this page.

Which SaaS niches have the least competition?
16 companies in this space are advertising right now, and the model puts the middle of them at $72K a month. The full range runs from $22.7K up to $444.4K. Those are modelled figures with a stated band, not reported revenue - the method and its failure modes are on the method page.
What does it cost to compete here?
The median company in this cut spends $1,815 a month on advertising, and the cheapest, Elegant Themes, spends $250 while being modelled at $26.4K a month. Across all 16 the thirty-day total is $91,986. That is the entry price to be visible against them on the same channel.
Is this space still growing?
7 of 16 increased ad spend over the last thirty days against 5 cutting it, and 19% of all the creative ever run here is still serving. Money moving in is the least ambiguous signal available from outside a company.
Where do these companies find customers?
Reach is concentrated in Italy, United Kingdom, Everywhere else. Those shares are weighted by each advertiser's own reach, so one small company with a lopsided country mix cannot move the picture. The archive covers EU and UK delivery, so a campaign running only in the US is invisible here rather than absent.

The rest of the index

1,400+ priced products, not 51.

This page is a cut of the free sample. The index behind it prices every software advertiser we can measure, marks the $500K a month line on each one, and is searchable by category, budget and momentum.

287,014 creatives across 36 countries.

Find something worth building.

1,400+ products, priced from their own advertising, and the $500K a month line marked on each one - so you can see at a glance what is still enterable.