Warble vs Sylvi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Warble
Discover songs perfectly suited to your vocal range and type. This app offers a vast library of music with unique filtering options to quickly find your next performance piece. Ideal for singers of all levels looking to simplify their song selection process.
- Search by voice type
- Search by voice range
- Unlimited filters
- Unlimited favorites
- Extensive song library
- New songs added weekly
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Love to sing? Need help finding a song? Warble has got you covered! Simply enter your voice type or voice range and BAM! Warble has done the work for you! With over 5000 songs (and new songs added every week!) you are sure to find the perfect song to suit your voice. Warble's unique filtering functions make finding the right song super quick and easy! No more hours spent on YouTube or Spotify looking for the perfect song to sing for your next big audition or karaoke night. Whether you are a beginner or a professional, Warble makes song searching simple. NEW SONGS ADDED EVERY WEEK! BASIC FEATURES: *Search by Voice Type *Limited use of filters *Limited use of favourites *Profile page PREMIUM FEATURES: *Search by Voice Type *Search by Voice Range *Unlimited filters *Unlimited favourites *Profile page Follow Warble on Twitter: https://twitter.com/Warble_App
Sylvi
Practice foreign languages with AI penpals that offer real-time, tutor-level feedback on every message. Build vocabulary, track progress, and connect with friends to improve your conversational fluency. Offers a variety of languages and accents.
- AI-powered language practice
- Tutor-level feedback on messages
- Customizable AI penpal accents
- Vocabulary building and testing
- Practice with friends
- Streak tracking
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AI penpals that feel like native friends. Tutor-level feedback on every single message. That's Sylvi. You can even pick a penpal with the exact accent you want to have. French (France and Canada) Spanish (Spain, Mexico, Colombia, Puerto Rico, etc) German Italian Portuguese (Portugal and Brazil) English (UK, US, Australia) More languages coming soon - follow our journey on @sylvi_app Too shy to talk to a native speaker? Practice with AI penpals who know you well enough to ask about your day. Every message you send is corrected and explained in real time - not just flagged, but actually taught, so when the real moment comes, you're ready for it. - Learn the phrases you need, for the life you lead Build your vocabulary by saving words important to you. Test yourself daily to memorise them. - Stay accountable with friends Practice with your friends regardless of what language they're learning or what level they're at. "I've used a lot of different language apps... but Sylvi has been the one I've been having the most success with growth-wise. At least from what my tutor tells me." Can't bear to lose your streak? We won't tell. If you've got a streak you can't bear to lose, message us at support@sylvi.ai and we'll transfer it straight to Sylvi. Try us free for 1 week, then pick a subscription that works for you. "I know grammar. I know all of these vocabularies, but you're kind of stuck in the middle of like - how do I become comprehensible? Then I found Sylvi" - Amira, UK "I could say, 'I'm going to the cinema today'. Then if I do Sylvi tomorrow, my penpal will come back and say, 'so what film did you see at the cinema?'. I love the continuity. It's so clever." - James, US
Screenshots
Verdict
The clearest difference is rating: Sylvi at 4.7 against Warble's 3.3. Sylvi also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price, review sentiment, 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
Both are free to download. Warble sells 4 in-app purchases, starting at $3.49 per month and Sylvi sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Sylvi holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Sylvi has 343 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 89% of Warble's written reviews are positive against 83% of Sylvi's, so the app with the better star average is not the one people write more warmly about.
Warble ships an update every 2 months, Sylvi every 3 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.
| Parameter | Warble | Sylvi |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (4 ratings) | 4.7 (343 ratings) — better |
| Positive reviews | 88.9% of reviews — better | 83.2% of reviews |
| Number of ratings | 4 | 343 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 51 MB | 143 MB |
| Age rating | 4+ | 12+ |
| Developer | Rowland Brache | Sylvi Ltd |
Customer experience
Warble
Sylvi
Bugs and requests
Warble
Not enough reviews yet to summarise bugs or requests.
Sylvi
Reported bugs
3 issues- Frequent app crashes
- Subscription issues
- Inconsistent user experience
Requested features
5 requests- Expand language options
- Improve free version features
- Implement more personalized learning
- Add more advanced conversation scenarios
- Improve speech recognition accuracy
In-app purchases
Warble
- Warble Subscriptions$3.491 Month
- Warble Subscriptions$5.993 Months
- Warble Subscriptions$9.996 Months
Show 1 moreShow fewer
- Warble Subscriptions3 Days trial$14.991 Year
Sylvi
- Sylvi Lite (Monthly)7 Days trial$2.991 Month
- Monthly7 Days trial$13.991 Month
- Monthly7 Days trial$19.991 Month
Show 7 moreShow fewer
- Monthly7 Days trial$24.991 Month
- 3 months14 Days trial$39.993 Months
- 3 months7 Days trial$39.993 Months
- Annual7 Days trial$59.991 Year
- Annual14 Days trial$83.901 Year
- Annual7 Days trial$89.991 Year
- Annual7 Days trial$129.991 Year









