Comparison

Singing Lessons vs Quazzl AI

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

Head to head
About

Singing Lessons

Learn to sing with scientifically proven exercises used by prestigious music academies. This app offers vocal warm-ups, pitch training, and personalized exercises based on your voice type to improve your technique and musical knowledge.

Highlights
  • Vocal exercises and warm-ups
  • Pitch training and ear tests
  • Identify voice type and vocal range
  • Learn advanced techniques like vibrato and falsetto
  • Track progress with smart voice notes
  • Download audios for offline practice
Read full description

Singing Lessons is designed to help beginner singers to improve their vocal technique and acquire general musical knowledge. Our method uses exercises that have been scientifically proven and that are used every day in the most prestigious music academies in the world.    Our app includes practice tracks, Vocal exercises, vocal warm up, vocal cool down, pitch training, guess the note exercises, vocal drills, pitch test, pitch practice, ear test, ear training and more.    Our singing practice starts with some easy vocal exercises using piano scales. Pay attention which octave you are singing on, that let you get familiar to your vocal range.     You can select your voice type: (Baritone, Bass, Tenor, Alto, Mezzo, Soprano, Mezzo-soprano) and thus customize the exercises to obtain better results. If not sure what’s your voice type, you can take a test inside the app.    Music Lessons can be expensive around the world, that’s why we decided to create a free vocal training app, giving you an opportunity to have a Free vocal coach / Free singing lessons well explained like an Udemy singing Course.      We teach to sing female singers, male singers, beginner and advanced, children and adults and every person who want to learn how to sing.    If you’re a newbie singer don’t focus on sing perfectly in a couple of days, instead of that, focus on master the singing basics and singing techniques. Learn to sing professionally is not an easy task. Some people were born and grow up with a beautiful voice, the rest of us must work hard to build a strong and powerful voice. So, start slow and then you’ll notice yourself matching pitch, singing in tune, after that you’ll feel how your songs sound better. This is how we build an awesome voice (Specially a singing voice). Hit Higher notes is just a matter of time.   Intermediate Lessons include how to sing high notes, develop vocal techniques like vibrato, falsetto, melismas, sing harmonies, vocal dynamics, whistle voice, chest voice, mixed voice, head voice and blending.   Key Features:    * Basic singing Lessons  * Vocal exercises at your fingertips  * Technique Lessons  * Find your vocal range and voice type.  * Increase vocal range  * Sing high notes easily  * Learn to sing from scratch  * Download audios and practice without connection  * Track your progress with smart voice notes.  * Develop Falsetto and other singing skills.  * Singing Rhythm, Tempo, diction, Melody and Harmony.  * Voice care  * Create and record professional Vocals  * Reduce nasal sound.  * Mastering Harmony and mastering vibrato  * Vocal Freedom, Vocal agility, Agile Voice  * Music theory: Vocal cords, vocal register, resonance, tessitura, timbre, Absolute pitch, perfect pitch, Vocal Folds and more.  Privacy Policy: https://singinglessons.app/privacy.html Terms of use: https://singinglessons.app/terms.html

About

Quazzl AI

Immerse yourself in interactive stories to learn new languages. Choose your own adventure, test your comprehension with quizzes, and improve pronunciation by listening to native speakers. Customize difficulty and explore various genres for a fun and engaging learning experience.

Highlights
  • AI-authored interactive stories
  • Choose story direction
  • Multiple-choice comprehension quizzes
  • Listen to sentence pronunciation
  • Adjustable difficulty levels
  • Multiple story genres
Features
Read full description

Learning a language has never been so much fun! Why settle for banal sentences when you can immerse yourself in exciting stories written according to your rules instead? * AI AUTHOR: Enjoy interactive stories in 56 languages! * YOUR CHOICE: Influence the story by choosing the direction of the story after each chapter! * TEST YOURSELF: Collect points with multiple-choice questions about the content of each chapter! * LISTEN: Listen to how to write a sentence so you can speak like a pro! * ADAPT: Customize your learning experience by adjusting the difficulty level! * YOUR STYLE: Genres like mystery, children's books, romance, science fiction and more! * COMPETITION: Track your progress and compete with others. Download Quazzl and start your language learning adventure today! Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Singing Lessons4 screens
Quazzl AI4 screens

Verdict

The call

The clearest difference is ads: Quazzl AI at none against Singing Lessons's shown. Quazzl AI also leads on update cadence (every 2 days vs fortnightly) and rating (4.7 vs 4.4). Singing Lessons's advantage is review sentiment (69% vs 60%). On price, ratings volume, in-app purchases and monetization model 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. Singing Lessons sells 6 in-app purchases, starting at $7.99 per 7 days and Quazzl AI sells 3 in-app purchases, starting at $6.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Quazzl AI holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 194 and 95 respectively. Written reviews complicate that: 69% of Singing Lessons's written reviews are positive against 60% of Quazzl AI's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Singing Lessons ships an update fortnightly, Quazzl AI every 2 days. Both last shipped on November 4, 2026.

Scorecard5 real differences · 5 level
Singing Lessons versus Quazzl AI: the parameters behind the verdict, then further details
ParameterSinging LessonsQuazzl AI
PriceFreeFree
Rating4.4 (194 ratings)4.7 (95 ratings) — better
Positive reviews68.6% of reviews — better59.5% of reviews
Number of ratings194 — better95
Update frequencyFortnightlyEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.013.4 — better
Further details — not scored
Size47 MB40 MB
Age rating9+9+
DeveloperHenry Reyesraffiniert media AG

Customer experience

Singing Lessons

All ratings194 ratings
Positive84.0%
Neutral4.6%
Negative11.3%
Written reviews35 reviews
Positive68.6%
Neutral2.9%
Negative28.6%

Quazzl AI

All ratings94 ratings
Positive91.5%
Neutral4.3%
Negative4.3%
Written reviews42 reviews
Positive59.5%
Neutral16.7%
Negative23.8%

User reviews

Singing Lessons

From 194 App Store ratings

What we love

  • 🚀 Improved vocal range and vibrato
  • 👍 Accurate pitch feedback
  • 👍 Easy-to-follow lessons
  • 👍 Clear layout and simple UI
  • 👍 Engaging and fun lessons

Room to improve

  • 🐛 App crashes during vocal gym
  • 🐛 Some pages don't scroll properly
  • 🐛 Words cut off at bottom or sides
  • 🐛 Privacy policy doesn't open
  • 🤔 Presumes knowledge of singing and notes

Quazzl AI

From 95 App Store ratings

What we love

  • 💡 Unique AI-powered language learning
  • 👍 Easy to use interface
  • 👍 Fun and interesting way to learn
  • 👍 Great for reading practice
  • 👍 AI-generated stories are helpful

Room to improve

  • 🐛 App not working properly
  • 🐛 Cannot enter homepage
  • 🐛 Subscription refund refused
  • 🐛 Misleading about being free
  • 🐛 Pay-wall at end of lessons

Bugs and requests

Singing Lessons

Reported bugs

2 issues
  • Lifetime subscription not working
  • Restore Purchase doesn't fix issue

Requested features

3 requests
  • Fix app crashes
  • Improve scrolling and layout issues
  • Add more feedback and guidance for beginners

Quazzl AI

Reported bugs

14 issues
  • Special offer for 3 days in a row not working
  • App not working properly
  • Cannot enter homepage
  • Accidental purchase of subscription
  • Refund request refused
Show 9 more
  • Developer claiming user wrote 5-star review initially
  • Developer ignoring emails and Instagram messages
  • Crash when clicking words to translate
  • Small stories crash after a few clicks
  • App keeps asking for name
  • App crashes from second chapter onwards when clicking paragraph translation
  • AI generated stories spit out gibberish English
  • Severe crashing
  • App is busted

Requested features

22 requests
  • Add way to contact developers
  • Fix issue with special offer for 3 days in a row
  • Make iPad-native version
  • Add ability to tap word and create flashcard
  • Improve voice to sound more native
Show 17 more
  • Add more languages in the future
  • Add male and female voice options
  • Add Cantonese pronunciation
  • Add word book to record words
  • Allow clicking on individual words for definition and pronunciation
  • Select one word for specific translation within sentence translation
  • Have voice speak out entire story without clicking sentences
  • Ability to stop and start story from any word
  • Option to delete unneeded AI stories
  • Add tools for full learning experience
  • Save unfamiliar words and review them
  • Track commonly used words for language learning levels
  • Add notification for moving to next level
  • Increase voice options and custom interface
  • Add "log in with email" option
  • Improve onboarding process
  • Fix app asking for name repeatedly

In-app purchases

6 purchases

Singing Lessons

Subscriptions5
  • Weekly Plan$7.997 Days
  • 12-Month Plan$10.991 Year
  • Quarterly$13.993 Months
Show 2 more
  • 6-Month Plan$16.996 Months
  • 12-Month Plan$21.991 Year
One-time1
  • Lifetime Subscription$39.99
3 purchases

Quazzl AI

Subscriptions2
  • Monthly Subscription$6.001 Month
  • Annual Subscription7 Days trial$60.001 Year
One-time1
  • Lebensdauer$199.99

Questions

Is Singing Lessons free?
Singing Lessons is free to download, with in-app purchases available.
Is Quazzl AI free?
Quazzl AI is free to download, with in-app purchases available.
Which has better reviews, Singing Lessons or Quazzl AI?
Quazzl AI is rated higher. Singing Lessons averages 4.4 out of 5 from 194 ratings, while Quazzl AI averages 4.7 from 95 ratings.
Do Singing Lessons or Quazzl AI have ads?
Singing Lessons shows ads; Quazzl AI does not.
Which is updated more often, Singing Lessons or Quazzl AI?
Singing Lessons ships an update fortnightly, and Quazzl AI every 2 days. Most recently, Singing Lessons was updated on November 4, 2026 and Quazzl AI on November 4, 2026.

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