ASOGet found
  • Keywords
  • Texts
  • Keyword ranking
  • Index checker
Product pageConvince
  • Screenshot Studio
  • App icon
  • Search preview
  • Custom product pages
MonetizationEarn more
  • Prices per country
  • Offers
  • Onboarding & paywall
ExperimentsTest, don't guess
  • A/B tests
  • Before / after
AnalyticsUnderstand
  • Growth
  • Revenue
  • Retention
  • Funnel
  • Crashes
Ratings & reviewsAnswer
  • Reviews
  • Ratings
AdsGrow faster
  • Apple Ads
  • TikTok, Google & MetaComing soon
CompetitorsStay ahead
  • Competitors
  • Competitor keywords
  • Compare
For solo developersFor teamsExperimentsSee everything Fermium100 does

Free tools · no sign-up

  • App icon makerDesign your icon from templates, ready for Xcode.
  • ASO checkComing soonPaste your App Store link, get a score and tips.
  • Screenshot makerComing soonApp Store screenshots from a template, in your browser.
  • Title & keyword checkComing soonWhat fits in 30 and 100 characters, and what's wasted.
  • Screenshot sizesComing soonEvery size Apple asks for, in one table.

Guides

  • ASO checklist before your launch5 min read
  • How to find the keywords your competitors rank for4 min read
  • Why your app gets impressions but no downloads4 min read
All guides
Our dataPricingCompany
Sign inGet started

The app growth platform for Apple developers. From one app to a whole portfolio.

Product

FeaturesFor solo developersFor teamsExperimentsPricingOur dataSign in

Resources

GuidesYouTubeContact

Company

About usChangelogSecurityAffiliatesPartner Login

Legal

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© 2026 Fermium100

Made in Kassel, Germany

ASOGet found
  • Keywords
  • Texts
  • Keyword ranking
  • Index checker
Product pageConvince
  • Screenshot Studio
  • App icon
  • Search preview
  • Custom product pages
MonetizationEarn more
  • Prices per country
  • Offers
  • Onboarding & paywall
ExperimentsTest, don't guess
  • A/B tests
  • Before / after
AnalyticsUnderstand
  • Growth
  • Revenue
  • Retention
  • Funnel
  • Crashes
Ratings & reviewsAnswer
  • Reviews
  • Ratings
AdsGrow faster
  • Apple Ads
  • TikTok, Google & MetaComing soon
CompetitorsStay ahead
  • Competitors
  • Competitor keywords
  • Compare
For solo developersFor teamsExperimentsSee everything Fermium100 does

Free tools · no sign-up

  • App icon makerDesign your icon from templates, ready for Xcode.
  • ASO checkComing soonPaste your App Store link, get a score and tips.
  • Screenshot makerComing soonApp Store screenshots from a template, in your browser.
  • Title & keyword checkComing soonWhat fits in 30 and 100 characters, and what's wasted.
  • Screenshot sizesComing soonEvery size Apple asks for, in one table.

Guides

  • ASO checklist before your launch5 min read
  • How to find the keywords your competitors rank for4 min read
  • Why your app gets impressions but no downloads4 min read
All guides
Our dataPricingCompany
Sign inGet started

Changelog

Shipped every day.Since October 9, 2026.

Everything new in Fermium100, newest first. 29 updates so far. We build in public, so you also see what comes next.

Start 7-day free trial See features

Updates

29 updates. In 11 release days.

October 21, 2026

2 updates

NewCompetitors

Every move of your competitors

Their keywords, reviews and screenshots on one page, every store change the day it happens, and how far they're ahead of you.

NewCompany

Affiliate program

Recommend Fermium100 to other developers and earn with every plan you bring. Apply on our affiliates page.

October 20, 2026

3 updates

NewPrices

A fair price for every country

See where your price is too high or too low compared with what apps charge there, and send new prices to Apple in one click.

NewAccount

Plans with a 7-day free trial

Pick Indie or Pro, try everything for 7 days, then pay safely with Stripe. Beta prices while we build.

ImprovedPlatform

A clearer look

The whole app in a new, calm design: tables, buttons and colors that are easier to read.

October 17, 2026

1 update

ImprovedCompany

Fermium100 is our new name

Same product, same team, a name that's ours.

October 16, 2026

1 update

NewKeywords

App updates on your ranking chart

Every new version of an app shows right on its ranking history, so you see what moved it.

October 15, 2026

2 updates

NewListing builder

Scores and a checklist

Your title, subtitle and keywords get a score and a short list of what to fix next.

ImprovedFind keywords

Three ways to find keywords

AI ideas, your competitors' keywords or a list you paste, each on its own clear page.

October 14, 2026

3 updates

NewListing builder

Send your texts to App Store Connect

Write title, subtitle and keywords in Fermium100 and send them to App Store Connect in one click.

NewProgress

Did your change work?

Before and after for every listing change, so you see what it did to your ranks.

ImprovedFind keywords

Find keywords, rebuilt

Start from one word and get real searches with popularity, difficulty and your rank.

October 13, 2026

2 updates

NewAccount

Sign in with Apple and Google

One click to sign in, no new password to remember.

ImprovedKeywords

Daily rankings

Your keywords are now checked every day, in every App Store you track.

October 12, 2026

2 updates

ImprovedPlatform

Data collection around the clock

We now read the App Store 24/7, so new keywords already have history when you find them.

ImprovedPlatform

Faster pages

Pages open at once, the data loads in right after.

October 11, 2026

2 updates

NewPlatform

How our data works

A page that explains every number: from Apple, measured by us or calculated.

NewProgress

Daily, weekly and monthly charts

Zoom out to see the trend, zoom in to see the day.

October 10, 2026

7 updates

NewKeywords

175 App Stores

Track your keywords in any of Apple's 175 App Stores.

NewKeywords

Estimated downloads per keyword

See roughly how many downloads a keyword can bring at your rank.

NewKeywords

BlackBox and Watchlist

Keep your best keywords in the BlackBox, watch the ones you're not sure about yet.

NewFind keywords

Competitor keywords

Pick any app and see which keywords it ranks for.

NewListing builder

Listing builder

Write your title, subtitle and keywords with your best words in view.

NewProgress

Progress

See how far your keywords have come since you started.

NewPlatform

Claude and ChatGPT

Connect Fermium100 to Claude or ChatGPT and ask about your keywords in plain words.

October 9, 2026

4 updates

NewKeywords

Rank tracking

Add your app and see where it ranks for each of your keywords.

NewFind keywords

Keyword research

Popularity and difficulty for every keyword, plus AI ideas to start from.

NewAlerts

Alerts

Know when a rank moves, without checking every day.

NewPlatform

App Store Connect

Connect your App Store Connect account once, your apps and numbers come in by themselves.

Coming next

What we are building right now.

TikTok, Google & Meta

All your ads side by side.

Coming soon

See it in your own app.Free for 7 days.

Start 7-day free trial

The app growth platform for Apple developers. From one app to a whole portfolio.

Product

FeaturesFor solo developersFor teamsExperimentsPricingOur dataSign in

Resources

GuidesYouTubeContact

Company

About usChangelogSecurityAffiliatesPartner Login

Legal

ImpressumDatenschutzAGB

© 2026 Fermium100

Made in Kassel, Germany