Comparison

DeepLing vs SonLerni

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

Head to head
About

DeepLing

Features
Read full description

DeepLing is a French learning app that treats grammar as foundational, not optional. If you want to learn French properly, grammar matters. DeepLing gives it the attention it deserves. Follow a clear roadmap where each grammar topic includes a classroom lesson, homework to practise what you’ve learned, and an exam to test your understanding. As your grammar improves, you can put it to work across the rest of the app. Vocabulary builds on what you’ve learned. Learn useful French through short conversations, then practise by listening, writing and creating your own sentences with new words. Journal is where you put your French into practice. Write about your day, your thoughts or anything you like. Get feedback on your writing, and when you’re stuck, start in English and we’ll help you express it in French. Flashcards are created automatically from your vocabulary and journal mistakes, so you review the words and language you personally struggled with. Whether you’re new to French or trying to fill in the gaps, DeepLing gives you a structured way to learn grammar, build vocabulary, practise writing and make real progress. SUBSCRIPTION AND PURCHASE DETAILS DeepLing is free to download, but a paid subscription or lifetime purchase is required to access its lessons and learning features. Available purchase options may include weekly, monthly and annual auto-renewable subscriptions, as well as a one-time lifetime purchase. Eligible new subscribers may be offered a free trial. Auto-renewable subscriptions renew automatically unless cancelled. Payment will be charged to your Apple Account. You can manage or cancel your subscription through your Apple Account settings. Privacy Policy: https://www.deepling.io/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SonLerni

This app helps intermediate language learners improve fluency by listening to native podcasts with synced transcripts and AI-powered explanations. It offers phrase-by-phrase replay, customizable playback speed, and automatically generated flashcards for review.

Highlights
  • Native language podcasts
  • Synced transcripts
  • Phrase-by-phrase replay
  • AI tutor for explanations
  • Adjustable playback speed
  • Automatic flashcard creation
  • 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

Screenshots

DeepLing4 screens
SonLerni4 screens

Verdict

The call

The clearest difference is ads: DeepLing at none against SonLerni's shown. DeepLing also leads on iOS requirement (15.1 vs 17.0). SonLerni's advantage is update cadence (every 10 days vs monthly). On price, in-app purchases 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. DeepLing sells 4 in-app purchases, starting at $3.99 per 7 days and SonLerni sells 1 in-app purchase, starting at $59.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DeepLing ships an update monthly, SonLerni every 10 days. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 7 level
DeepLing versus SonLerni: the parameters behind the verdict, then further details
ParameterDeepLingSonLerni
PriceFreeFree
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyMonthlyEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size124 MB101 MB
Age rating4+12+
DeveloperJonathan CooperSonlerni LLC

In-app purchases

4 purchases

DeepLing

Subscriptions3
  • Weekly Premium B$3.997 Days
  • Deepling Monthly B$9.991 Month
  • Deepling Annual A$79.991 Year
One-time1
  • Deepling Lifetime B$159.99
1 purchases

SonLerni

Subscriptions1
  • Yearly Subscription7 Days trial2 variants$59.991 Year

Questions

Is DeepLing free?
DeepLing is free to download, with in-app purchases available.
Is SonLerni free?
SonLerni is free to download, with in-app purchases available.
Do DeepLing or SonLerni have ads?
SonLerni shows ads; DeepLing does not.
Which is updated more often, DeepLing or SonLerni?
DeepLing ships an update monthly, and SonLerni every 10 days. Most recently, DeepLing was updated on November 4, 2026 and SonLerni on November 8, 2026.

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