Sylvi vs ImproviseThis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sylvi
Practice foreign languages with AI penpals who provide tutor-level feedback on every message. Learn essential phrases, build vocabulary, and stay motivated with friends. Offers a free trial before subscription.
- AI penpals for language practice
- Real-time message correction and explanation
- Vocabulary building and memorization tools
- Practice with friends
- Streak preservation
- Flashcards and leaderboard
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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
ImproviseThis
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Unlock your improvisation skills with a simple, powerful daily tool designed for every musician. ImproviseThis gives you a fresh set of 3 to 8 notes each time you practice, challenging your creativity and strengthening your musical instincts. Whether you play piano, guitar, saxophone, violin, or sing, this app helps you build real improvisation fluency—one melody at a time.
Screenshots
Verdict
The clearest difference is in-app purchases: ImproviseThis at none against Sylvi's 25. Sylvi's advantage is iOS requirement (16.4 vs 18.0). On price, ads 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
Both are free to download. Sylvi sells 24 in-app purchases, starting at $2.99 per month. ImproviseThis asks for nothing beyond the download.
| Parameter | Sylvi | ImproviseThis |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (320 ratings) — better | — |
| Positive reviews | 82.8% of reviews | — |
| Number of ratings | 320 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 135 MB | 26 MB |
| Age rating | +12 | 4+ |
| Developer | Sylvi Ltd | Marcelo Palacios |
Bugs and 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
ImproviseThis
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sylvi
- Sylvi Lite (Monthly)7 Days trial$2.991 Month
- Sylvi Lite (Monthly)$2.991 Month
- Sylvi Pro (Monthly)$6.991 Month
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- Sylvi Pro (Monthly)7 Days trial$6.991 Month
- Sylvi Lite (Monthly)$6.991 Month
- Monthly14 Days trial$9.991 Month
- Monthly7 Days trial$13.991 Month
- Sylvi Pro (Monthly)$14.991 Month
- Monthly7 Days trial$19.991 Month
- 3 months14 Days trial$19.993 Months
- Sylvi Lite (Annual)14 Days trial$23.991 Year
- Sylvi Lite (Annual)$23.991 Year
- Monthly7 Days trial$24.991 Month
- Sylvi Lite (Annual)$35.991 Year
- 3 months14 Days trial$39.993 Months
- 3 months7 Days trial$39.993 Months
- Annual14 Days trial$49.901 Year
- Annual7 Days trial$59.991 Year
- Sylvi Pro (Annual)14 Days trial$59.991 Year
- Sylvi Pro (Annual)$59.991 Year
- Sylvi Pro (Annual)$79.991 Year
- Annual14 Days trial$83.901 Year
- Annual7 Days trial$89.991 Year
- Annual7 Days trial$129.991 Year
ImproviseThis
No in-app purchases









