52
BU Score
Solid
Christella VoiceUp Complete
✍️ BU Analytics Review
“
Christella VoiceUp Complete is an iOS app from Speechtools Ltd in the Education category, currently rated 5.0★ across 2 ratings. Initial signal reads as no scraped reviews yet — judgment based on metadata only.
Our BU Score puts it at 52 — Solid (established niche player). For a Education app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (5.0★)METRIC | +$2,200 | |
| Established app (6y old)METRIC | +$800 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (2 ratings)METRIC | −$300 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 86 MB🔞 12+📱 iOS 17.0+🔖 v5.1.3🔄 updated 6mo ago🌐 EN📂 Education💰 Paid🚀 Launched 2019 (6y old)
📝 About this app
Christella Antoni is a Consultant Speech & Language Therapist with over 20 years experience and is the UK's leading expert in transgender voice modification. Christella Voiceup will teach you how to feminize your voice.
VoiceUp Complete contains the complete voice feminization course as 3 separate stages and pitch analysis and graph so you can track your pitch change over time.
With 10 minutes of daily practice, Christella VoiceUp will help you feminize your voice!
The complete voice feminization course contains over 2 hours of voice therapy training in 3 stages - beginners, intermediate and advanced. Each stage contains five separate lessons which cover the fundamental aspects of voice and speech feminization. These involve modification of your resonance, pitch, intonation and vowel length. The final lesson of each stage combines these skills to help you develop control sustaining your feminized voice.
All exercises are demonstrated by Christella and provide a consistent voice model with clear explanations. The exercises are based on Christella's successful treatment model and gradually increase in length and complexity as you progress through each stage to ensure that you will securely acquire voice feminization skills.
Reviews
=======
"I love it !!!! This is the best app ever !!! - I would thoroughly recommend it - and it has been very helpful"
"So incredibly happy with this app. I have terrible anxiety and discomfort around my voice and having someone give clear instructions and lessons completely anonymously is a lifesaver. "
"Creates an amazing feeling that anything is achievable with the right guide and support. Thank you so much for making this App available for everyone"
"If you can’t / dont want to access voice therapy face to face for whatever reason, or you’re looking to supplement your face to face therapy – I’d definitely recommend it!"
"Not cheap but worth it as really good and really is life changing when what comes out your mouth match your mind and body"
"I'm using this app as a speech pathologist with my transgender clients. The techniques are extremely effective, easy to do, and my client's voice is becoming more feminine. Thank you Christella for developing this fantastic app."
VoiceUp Complete contains the complete voice feminization course as 3 separate stages and pitch analysis and graph so you can track your pitch change over time.
With 10 minutes of daily practice, Christella VoiceUp will help you feminize your voice!
The complete voice feminization course contains over 2 hours of voice therapy training in 3 stages - beginners, intermediate and advanced. Each stage contains five separate lessons which cover the fundamental aspects of voice and speech feminization. These involve modification of your resonance, pitch, intonation and vowel length. The final lesson of each stage combines these skills to help you develop control sustaining your feminized voice.
All exercises are demonstrated by Christella and provide a consistent voice model with clear explanations. The exercises are based on Christella's successful treatment model and gradually increase in length and complexity as you progress through each stage to ensure that you will securely acquire voice feminization skills.
Reviews
=======
"I love it !!!! This is the best app ever !!! - I would thoroughly recommend it - and it has been very helpful"
"So incredibly happy with this app. I have terrible anxiety and discomfort around my voice and having someone give clear instructions and lessons completely anonymously is a lifesaver. "
"Creates an amazing feeling that anything is achievable with the right guide and support. Thank you so much for making this App available for everyone"
"If you can’t / dont want to access voice therapy face to face for whatever reason, or you’re looking to supplement your face to face therapy – I’d definitely recommend it!"
"Not cheap but worth it as really good and really is life changing when what comes out your mouth match your mind and body"
"I'm using this app as a speech pathologist with my transgender clients. The techniques are extremely effective, easy to do, and my client's voice is becoming more feminine. Thank you Christella for developing this fantastic app."
🆕 What's New · v5.1.3
Bug fixes and performance enhancements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Christella VoiceUp Complete
- Developer
- Speechtools Ltd
- Bundle ID
- co.speechtools.ChristellaMTFComplete
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 12+
- Languages
- EN
Company
- Website
- www.christellaantoni.co.uk
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $86/mo
- Top-grossing rank
- Outside top 99 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth2 ratings+100% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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