Comparison

Fret Notes vs SonLerni

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

Head to head
About

Fret Notes

Features
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Master the notes on your guitar fretboard. Fret Notes turns fretboard learning into a simple game designed to help you recognize notes faster and more naturally. Instead of memorizing diagrams, practice identifying notes directly on the fretboard and build the instant recognition that makes navigating the guitar easier. Fret Notes also tracks your average response time, so you can see your progress as finding notes becomes quicker and more automatic. Features: 
• Learn notes across the guitar fretboard 
• Practice through a simple, focused game 
• Track your average response time 
• See your recognition speed improve over time 
• Clean, distraction-free experience Whether you’re learning the fretboard for the first time or want to strengthen your note recognition, Fret Notes gives you a simple way to practice a little every day.

About

SonLerni

Improve your listening comprehension in French, Spanish, German, and English with authentic audio and AI-powered explanations. Learn through real conversations and podcasts, with transcripts and study tools to reinforce understanding. Designed for intermediate learners to bridge the gap between reading and understanding native speakers.

Highlights
  • Authentic audio and podcasts
  • AI-powered explanations
  • Transcripts for listening support
  • Vocabulary review tools
  • Adjustable playback speed
  • Focus on real-world comprehension
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

Fret Notes4 screens
SonLerni4 screens

Verdict

The call

The clearest difference is price: SonLerni at Free against Fret Notes's $0.99. SonLerni also leads on update cadence (weekly vs every 15 months). Fret Notes's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement 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

SonLerni is free to download; Fret Notes costs $0.99 up front. SonLerni sells 1 in-app purchase, starting at $59.99 per year. Fret Notes asks for nothing beyond the download.

UpkeepUpdate frequency

Fret Notes ships an update every 15 months, SonLerni weekly. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Fret Notes versus SonLerni: the parameters behind the verdict, then further details
ParameterFret NotesSonLerni
Price$0.99Free — better
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 15 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size0 MB81 MB
Age rating4+12+
DeveloperLuca StrazzulloSonlerni LLC

In-app purchases

None

Fret Notes

No in-app purchases

1 purchases

SonLerni

Subscriptions1
  • Yearly Subscription7 Days trial2 variants$59.991 Year

Questions

Is Fret Notes free?
Fret Notes costs $0.99, with no in-app purchases.
Is SonLerni free?
SonLerni is free to download, with in-app purchases available.
Do Fret Notes or SonLerni have ads?
SonLerni shows ads; Fret Notes does not.
Which is updated more often, Fret Notes or SonLerni?
Fret Notes ships an update every 15 months, and SonLerni weekly. Most recently, Fret Notes was updated on October 25, 2026 and SonLerni on November 5, 2026.

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