Comparison

SonLerni vs Chatlator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SonLerni

This app helps intermediate language learners improve fluency using native podcasts with synced transcripts and AI-powered explanations. It offers phrase-by-phrase replay, adjustable playback speed, and automatically generated flashcards for review. Track your progress and master five languages with this immersive learning tool.

Highlights
  • Native language podcasts
  • Synced transcripts
  • Phrase-by-phrase replay
  • AI-powered phrase explanation
  • Adjustable playback speed
  • Automatic flashcard generation
  • Progress tracking
Features
Read full description

Ready to take your fluency to the next level? SonLerni is for intermediate speakers (A2–B2) who have made some progress in learning a language but lose native speakers at full speed. Level up with native podcasts in English, French, German, Spanish and Hebrew, with synced transcripts, paced playback and phrase-by-phrase replay. TOTAL IMMERSION, NOT TEXTBOOK AUDIO Real conversations at natural speed, full of the slang, idioms and shortcuts textbooks skip. Podcasts let you eavesdrop on natives. SonLerni makes sure you catch what they say. AI TUTOR Lost? Tap the phrase. The AI tutor translates it literally, what the speaker actually means and the nuance: casual, regional or formal. Ask a follow-up, then another. The AI tutor loves rabbit holes. TOO FAST? SLOW IT DOWN • A transcript that follows the audio phrase by phrase • Replay by phrase, not by seconds • Fine-tune the playback speed FLASHCARDS BUILD THEMSELVES Every phrase you ask about becomes a flashcard, with the sentence you heard it in. A few minutes of review a day keeps it. PICK YOUR LEVEL Made for A2–B2. Set your level and get episodes that stretch you without losing you. FIVE LANGUAGES. ONE APP. English, French, German, Spanish and Hebrew. Switch languages any time. SEE YOUR PROGRESS Minutes listened, active days, flashcards and weekly goals, all on one screen. BUILT FOR INTERMEDIATE LEARNERS Outgrown beginner apps? Your next level is native podcasts, explained. SUBSCRIPTION SonLerni Premium is an auto-renewing annual subscription. Payment is charged when you confirm your purchase. The subscription renews automatically unless you turn it off at least 24 hours before the end of the current period. Manage or cancel it any time in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sonlerni.com/privacy

About

Chatlator

Features
Read full description

Chatlator turns the conversations you're already having into language practice. Not chats with strangers. Not matched "language partners". The people you actually message every day, now in the language you're learning. HOW IT WORKS Pick the language you speak and the one you're learning. Invite someone you already talk to. Chat as you normally would. When you send a message, they receive it in the language they're learning. When they reply, you see it in yours, with your own language underneath. Hide it when you're feeling brave, long-press any message to peek. You learn in context and always know exactly what was said. MADE FOR PEOPLE WHO ALREADY TALK Mixed-language couples. Families across borders. Expats keeping up with home. Friends learning together. The one person you message all the time: your partner, your mum, your best mate. Start with them. PLAY YOUR WAY TO FLUENT Challenge a friend to a Quiz: five questions built from your own chat. Or a round of Flipword: spell words from your letter tiles, flip them into your learning language, and bank the points. Win and you're the champ of that chat until they beat you. Keep your streak alive with one thing a day. MEET CHATI, YOUR AI LANGUAGE COACH Chati lives in the app. Ask anything, anytime: grammar, vocab, how to say it the natural way. Get a daily question and five-question quizzes from your real conversations, or practise a scene like ordering at a café with Chati playing the other side. WHY CHATLATOR WORKS Language apps teach you phrases. Chatlator puts them in the middle of conversations that already matter to you. Practise daily without scheduling it Learn in context, not in isolation Real exchanges with people you care about Never guess what a message meant LANGUAGES Over 30 languages, including the regional variants that matter, so you learn the way your people actually speak: Spanish (Spain, Mexico, Argentina), French (France, Canada), German (incl. Swiss German), Portuguese (Brazil, Portugal), Mandarin (China, Taiwan), Cantonese, Italian, Japanese, Korean, Thai, Vietnamese, Arabic, Hindi, Indonesian, Swahili, Dutch, Russian, Polish, Czech, Slovak, Romanian, Catalan, Croatian, Ukrainian, Turkish, Hebrew, Swedish, Norwegian, Danish, Finnish, Estonian, Greek, Hungarian, and English. FEATURES Instant two-way translation Show or hide your own language per chat Quizzes and Flipword with friends Chati AI coach, daily questions and role-play Streaks, points and tiers Group chats across multiple languages at once Photos, videos, reactions A clean, familiar messaging experience Download Chatlator and start with the person you message most. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SonLerni4 screens
Chatlator4 screens

Verdict

The call

The clearest difference is in-app purchases: Chatlator at none against SonLerni's 2. Chatlator also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SonLerni sells 1 in-app purchase, starting at $59.99 per year. Chatlator asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

Scorecard3 real differences · 7 level
SonLerni versus Chatlator: the parameters behind the verdict, then further details
ParameterSonLerniChatlator
PriceFreeFree
Rating5.0 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyWeeklyWeekly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size103 MB85 MB
Age rating12+17+
DeveloperSonlerni LLCChatlator LTD

In-app purchases

1 purchases

SonLerni

Subscriptions1
  • Yearly Subscription7 Days trial2 variants$59.991 Year
None

Chatlator

No in-app purchases

Questions

Is SonLerni free?
SonLerni is free to download, with in-app purchases available.
Is Chatlator free?
Chatlator is free to download, with no in-app purchases.
Do SonLerni or Chatlator have ads?
SonLerni shows ads; Chatlator does not.
Which is updated more often, SonLerni or Chatlator?
SonLerni ships an update weekly, and Chatlator weekly. Most recently, SonLerni was updated on November 12, 2026 and Chatlator on November 13, 2026.

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