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
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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

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

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

ImpressumDatenschutzAGB

© 2026 Fermium100

Made in Kassel, Germany

All guides

Offers

Free trial or introductory offer: which to choose

October 26, 2026 · 4 min read · Fermium100

A free trial is one of three introductory offers Apple gives you, next to pay as you go and pay up front. Pick a free trial when people need to try your app before they believe in it, and a discounted price when they already know what they want.

The three introductory offers

  • Free trial: the subscription starts right away, but people pay nothing until the trial ends. Then the normal price starts.
  • Pay as you go: a lower price every billing period for a set time, like a cheaper price for the first three months. Then the normal price.
  • Pay up front: one payment for a longer first period, like six months for one price. Then the normal price.

How long they can last

  • Free trial: 3 days, 1 or 2 weeks, 1, 2, 3 or 6 months, or 1 year.
  • Pay up front: 1, 2, 3 or 6 months, or 1 year.
  • Pay as you go: a number of billing periods. For a monthly plan that's 1 to 12 months.

Who gets the offer

Introductory offers are for people who haven't used one yet. Each person can use only one introductory offer per subscription group. If someone used the free trial of your monthly plan, they won't get the trial of your yearly plan in the same group too.

When a free trial fits

  • Your app shows its value only after some use, like a habit tracker or a learning app.
  • People don't know your app yet and need to see it work first.
  • Your onboarding shows the best part of the app within the trial.

When a discounted price fits

  • Pay as you go: people already want the app, but the full price feels high. A lower start makes saying yes easier.
  • Pay up front: you want people to stay long enough to build a habit before the first full renewal.
  • Both: you want to start with paying users, not with people who cancel before the trial ends.

Good to know before you start

  • You can set an offer per country, with its own price.
  • Per country you can have one current and one future introductory offer.
  • An offer can't be edited once it's made. To change it, delete it and make a new one.

Change one thing at a time, and compare paying users after a few weeks, not after a few days.

In Fermium100 you make free trials and offer codes right in the app, and see what each offer brings in.

See offers in Fermium100

Questions

Can someone get a free trial twice?
Not in the same subscription group. Each person can use one introductory offer per group.
What's the shortest free trial?
3 days. The longest is 1 year.
Can I change a running introductory offer?
No. Delete it and make a new one with the new details.
Can I offer a trial in some countries only?
Yes. You choose the countries and regions for every introductory offer.

Put it to work.Try Fermium100 free for 7 days.

Start 7-day free trial

More guides

OffersOctober 26, 2026 · 4 min read

Offer codes for subscriptions, step by step

Offer codes give chosen people a free or cheaper subscription. How they work, Apple's limits, and how to make your first one.

Read
ListingOctober 26, 2026 · 5 min read

ASO checklist before your launch

Keywords, texts, screenshots and release day: what to check before your app goes live.

Read
CompetitorsOctober 26, 2026 · 4 min read

How to find the keywords your competitors rank for

You can't read another app's keyword field. How to work out their words anyway, and which ones to take.

Read