Comparison

Sawti vs Der Kestner

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

Head to head
About

Sawti

This app uses the Wirth method to teach singing through interactive exercises. It offers real-time pitch feedback and adapts to your voice range, guiding beginners to become confident singers. Earn a certificate upon completion of all levels.

Highlights
  • Real-time pitch monitoring
  • Adaptive exercises
  • Interactive 'hit-the-bar' concept
  • Rehearsal room for technique practice
  • Completion certificate
  • Nine learning levels
Features
Read full description

FIND YOUR VOICE NOW AND HAVE FUN DOING IT ! Everyone can learn to sing and hit the notes. This app, based on the Wirth method, shows you how. Exciting and fun exercises on nine levels await you. The first four levels are free of charge. With Sawti, you'll not only overcome your fears and become a confident singer, but you'll also receive a certificate when you complete your learning journey. Take the Sawti app in your pocket and practice anytime, anywhere! Sawti is designed to properly guide beginners and help them get quick results on their way to successful singing. The exercises are tailored to your voice, so you'll always feel comfortable on the path to real singing. Learning to sing is easy: we use the familiar "hit the bars" concept, where the little ball moves with the pitch of your voice - in real time! Make sure you hit the bars to successfully complete an exercise. You'll start with single notes, followed by simple phrases and songs, and rhythm exercises. You will learn to sing these songs: * Frère Jacques * Bingo * Joy to the gods * Alphabet Song * Bell yodel * When you're happy and you know it * That sounds so lovely * I like the flowers * My Bonnie lies over the ocean * Old MacDonald had a farm Sawti means "My Voice" in Arabic and was originally developed to help hundreds of young female music teachers in Jordan, where vocal training is not readily available. It is the first and only app based on the "Wirth Method", the pedagogical concept of Prof. Gerald Wirth, artistic director of the Vienna Boys Choir. THE GREAT FEATURES OF SAWTI * Immediate monitoring of the pitch: visual feedback in real time * Customization: exercises adapt to your pitch range so you see fast results on your way to successful singing. * Easy-to-understand and fun "hit-the-bar concept": the ball moves with the pitch of your voice - the better you hit the bars, the more points you get. * Rehearsal room: try different singing techniques to help you hit the bars. Don't worry if your pitch is off - you don't get points in the rehearsal room! * Certificate: Complete all levels and exercises and get a reward. * No login/registration required WHO IS SAWTI FOR? * For all people who want to sing better * Kindergarten teachers * Elementary school teachers * Music school teachers * choir singers * karaoke singers * Parents * children EDUCATIONAL CONCEPT The Wirth Method is a general music education based on singing, especially choral singing. It combines the best practices of traditional music teaching and develops them further by defining specific content and elements that are essential for the highest standards. These are taught through a series of support pillars, using appropriate tools for each teaching situation. ABOUT PROF. GERALD WIRTH Gerald Wirth received his initial musical training as a member of the Vienna Boys Choir and at Anton Bruckner University in Linz, Austria, where he studied voice, oboe and piano. He became artistic director of the Vienna Boys Choir in 2001 and its president in 2013. From 1986 to 1989, Wirth was choir director with the Vienna Boys' Choir and led one of its four touring choirs. Between 1989 and 1991, he was chorus director of the Salzburg Opera. In Canada, he was artistic director of the Calgary Boys' Choir and musical director of the Calgary Civic Symphony. Wirth has conducted choirs and orchestras around the world, and he can make virtually anyone and anything sing. Wirth's first love is the human voice.

About

Der Kestner

This app is a comprehensive dictionary for German Sign Language (DGS), offering over 29,000 terms and 400 sign videos. It includes learning tools, custom list creation, and image editing for educational materials. Accessible across devices with regular updates.

Highlights
  • Extensive DGS vocabulary with over 29,000 terms
  • 400+ sign language videos
  • Vocabulary trainer and custom list creation
  • Image editor for creating educational materials
  • Search and filter functions
  • Cross-device accessibility (app and web)
Features
Read full description

Willkommen beim Kestner, dem Wörterbuch der Deutschen Gebärdensprache (DGS)! Mit über 30.000 verschiedenen Begriffen und 500 DGS-Sätzen als Gebärdenvideo begleitet dich der Kestner und hilft dir dabei, dich in nahezu jeder Situation mit Gebärden auszudrücken. Dieses weltweit größte Wörterbuch der DGS bietet nicht nur einen umfassenden Wortschatz, sondern auch eine Vielzahl von hilfreichen Funktionen, die dir ein besseres Verständnis und eine leichtere Kommunikation in der Deutschen Gebärdensprache ermöglichen. Lerne in einem umfangreichen Vokabeltrainer spielerisch die Deutsche Gebärdensprache kennen, erstelle und teile eigene Gebärdenlisten und schaffe dir Merkhilfen und Arbeitsblätter. So wird Gebärden lernen einfach und effektiv! Die Gebärden im Kestner sind in über 100 Rubriken gegliedert. Eine Suchfunktion und viele Filter erleichtern dir das Finden der Gebärdenvideos. Falls ein gesuchter Begriff nicht als Gebärde im Kestner enthalten ist, werden dir Synonyme Gebärden vorgeschlagen. Zu über 3500 Begriffen zeigt dir der Kestner zusätzlich vorgefertigte Gebärdenbilder mit Bewegungspfeilen. Durch einen integrierten Bild-Editor kannst du direkt im Kestner Standbilder der Gebärdenvideos erstellen und diese mit Pfeilen und vielen verschiedenen Elementen aufbereiten. Die Gebärdenbilder kannst du dann in Druckvorlagen einfügen und so mit dem Kestner Arbeitsblätter und Unterrichtsmaterialien erstellen. In Gebärdenbildern und Druckvorlagen kannst du die ca. 3500 Symbolbilder der Mulberry Symbolsammlung einfügen. Die Gebärdenbilder und Druckvorlagen kannst du ausdrucken oder herunterladen. Den Kestner kannst du mit deinen persönlichen Login-Daten auf allen Geräten als App und Web-Version nutzen. Durch regelmäßige Updates und Aktualisierungen bleibt der Kestner immer auf dem neuesten Stand. Lade dir den Kestner noch heute als App herunter und registriere dich kostenlos und unverbindlich. Unsere Demo-Version bietet dir Zugriff auf über 300 Gebärden und ein paar erste DGS-Sätze, die es kaum erwarten können, von dir gebärdet zu werden! Wir wünschen dir tolle Erfahrungen beim Entdecken des Kestners und einer der schönsten Sprachen der Welt! Herzlichst dein Verlag Karin Kestner -------------------------------- Impressum: https://www.kestner.app/privacy/imprint Datenschutz / privacy policy: https://www.kestner.app/privacy AGB: https://www.kestner.app/privacy/agb Namensnennung: https://www.kestner.app/third-party Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sawti4 screens
Der Kestner4 screens

Verdict

The call

The clearest difference is in-app purchases: Sawti at none against Der Kestner's 9. Der Kestner's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads, monetization model 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. Der Kestner sells 8 in-app purchases, starting at $3.99 per month. Sawti asks for nothing beyond the download.

UpkeepUpdate frequency

Sawti ships an update every 4 months, Der Kestner every 3 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Sawti versus Der Kestner: the parameters behind the verdict, then further details
ParameterSawtiDer Kestner
PriceFreeFree
Rating4.7 (7 ratings) — better—
Positive reviews—73.3% of reviews
Number of ratings7 — better—
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size206 MB86 MB
Age rating4+4+
Developerphonicscore GmbHVerlag Karin Kestner GmbH

In-app purchases

None

Sawti

No in-app purchases

8 purchases

Der Kestner

Subscriptions8
  • Basis2 variants$3.991 Month
  • Premium$6.991 Month
  • Für Familien$11.991 Month
Show 5 more
  • Veraltetes Abo$14.991 Month
  • Stufe 5$39.991 Month
  • Basis$44.901 Year
  • Premium$69.901 Year
  • Für Familien$119.991 Year

Questions

Is Sawti free?
Sawti is free to download, with no in-app purchases.
Is Der Kestner free?
Der Kestner is free to download, with in-app purchases available.
Do Sawti or Der Kestner have ads?
Neither Sawti nor Der Kestner shows ads.
Which is updated more often, Sawti or Der Kestner?
Sawti ships an update every 4 months, and Der Kestner every 3 weeks. Most recently, Sawti was updated on October 25, 2026 and Der Kestner on October 30, 2026.

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