Retention and expansion
Localization tactics
Translating apps and marketing for other countries, and which markets paid off. 26 tactics from 16 founder interviews.
Founders mostly went abroad in two ways: building for a market the US-focused crowd ignored, and translating apps, ads and videos cheaply with AI. Setting prices per country, usually below plain currency conversion, tended to raise revenue. Fully adapting an app for a hard market was the riskiest move: Japan needed a local-style paywall at two apps, and one full Japan push failed outright.
- Some founders skipped the US entirely: Cal Buddy rebuilt a US calorie app in Hebrew for Israel and went from $1K to over $81K a month in about 10 months, and EWA won its home market before adding languages.Cal BuddyEWA: Learn English
- Japan needed its own paywall: Simply Piano reportedly saw conversion jump once a long page with company story and reviews replaced a minimal one, and Mojo's review-heavy paywall lifted new revenue there 20% but failed in the US.Simply Piano (1)Simply Piano (2)Mojo
- Replika made a big bet on Japan, with a Japanese-speaking team member fully translating and adapting the app, and said it did not work at all.Replika
- Mojo tested prices below the US equivalent in Brazil and Mexico and the lower prices won; Simply built its own Big Mac-style price index and reported a large ARPU jump in most countries, though some needed adjusting.MojoSimplyA subscription app
- Translation got cheaper with AI: ElevenLabs swapped its agency for an LLM run on every code change, then dubbed its ads, and one guest said reposting winning videos from accounts in new countries added about 20% views each.ElevenLabs (1)ElevenLabs (2)Practitioner pattern · Matt Espinoza (Founder of Clover, which sells the cloning, multi-country account and AI search/Reddit seeding services he recommends)
- Other countries also served as test beds: one guest tested ads at $10 a day in Indonesia for about 1% of US cost, and another ran Apple Ads everywhere but the US to find the Netherlands as a top market.A company testing 500 ads weeklyA subscription app
Summary written 2026-09-26 from the tactics below. Figures are as founders stated them.
What worked, with the best evidence
What didn't work, or only partly
- Mojo: Use a long scrolling paywall with reviews and a free vs pro comparison in JapanNew revenue +20% in Japan; failed in the US, where a clean video paywall won
- Reflectly: Pay small creators in each country to read a script, then run it as Facebook adsDrove ~$3-4M ARR, but ad spend matched revenue
- Simply Piano: Pick one country by upside and confidence, then fully localize songs, screens and storeAll Japan metrics grew except paywall conversion, which fell
- Replika: Fully translate and adapt an app for Japan with a Japanese speakerDidn't work at all; harder than expected
Companies in this topic
More tactics (10)
- Mojo: Retest each winning paywall in every key market before rolling it outSeveral winners shipped only in some markets; ARPU of new cohorts kept rising
- Praycreen: Don't translate your apps yourself; leave it as upside for the buyerBuyers usually translate first; founder says it makes the app easier to sell
- Symmetry: Build a gym tracker for Spanish speakers instead of the USDescribed as the fastest-growing fitness app in the Spanish market
- EWA: Learn English: Win your home market first, then add languages one by oneLiked locally, then expanded; later #2 after Duolingo
- Translate the app into many languages with AI and test nearby marketsHer biggest win of the year; Turkey converts well; no numbers
- Drop prices far lower in Brazil, where ads are very cheapFinally made ad spend in Brazil work; no numbers
- Rhyme: Dub a 37M-view video into German and post it from a German accountNo German numbers given; Germany was already their best market outside North America
- Tinder: Test many prices for each plan and add-on, country by countryHundreds of price SKUs live at once; no test results shared
- Film a real person once, then use AI for 30 languages and music variantsAdvisor's standing advice to clients; no numbers
- Tinder: Set different prices by country, starting with fast-growing markets like India
New tactics every Monday
The week's founder interviews, boiled down to what they did and what happened.