English Shadowing vs Linear Regression Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
English Shadowing
Practice speaking a new language like a native using real YouTube videos. This app uses the shadowing method to help you improve pronunciation, rhythm, and intonation through instant AI feedback. It's designed for busy individuals to build fluency in just minutes a day.
- Shadowing method training
- Record and compare your voice
- Instant AI pronunciation analysis
- Career-focused practice scenarios
- Level-based lessons
- Progress tracking
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Start speaking like a native. Speak Pro turns real YouTube videos into your personal speaking practice studio. Using the proven shadowing method trusted by interpreters and polyglots, you'll finally bridge the gap between knowing a language and actually speaking it. Shadowing isn't just repetition — it's how your brain learns fluency naturally. Watch native speakers, repeat what they say in real-time, and train your mouth to move at native speed. It's the secret behind confident, natural speech. Perfect for language learning, career prep, or mastering English, Spanish, German, French, Japanese, and more. Real Content, Real Progress: Practice with TED Talks, interviews, and everyday conversations — not scripted textbooks. Every speaking practice session uses authentic voices and real-world phrases. AI Feedback That Feels Like a Tutor: Record yourself, then instantly compare. Speak Pro highlights exactly where your pronunciation, rhythm, and intonation need work — so every language learning session makes you better. Built for Busy Lives Just 10-15 minutes of shadowing daily builds real fluency. Practice during your commute, lunch break, or before bed. Features That Accelerate Fluency: - Shadowing Method Training – Repeat after native speakers - Record & Compare – Hear exactly how you sound vs. natives - Instant Analysis – Get an instant feedback - Career-Focused Practice – Master workplace conversations, presentations, meetings - Level-Based Lessons – From beginner phrases to advanced storytelling - Progress Tracking – Watch your speaking practice time and streaks grow Perfect For: - Professionals prepping for English-speaking roles - Students studying abroad or taking exams - Travelers wanting confident conversations - Anyone tired of "knowing" but not speaking Languages Available: English • Spanish • German • French • Dutch • Japanese • Italian • Chinese • Korean • Arabic • Portuguese Start Your Fluency Journey Today! Download Speak Pro and transform how you learn languages. With proven shadowing techniques and instant feedback, you'll speak naturally in weeks—not years. Privacy Policy: https://www.notion.so/Privacy-Policy-for-Speak-Pro-20c5deb0a10c80aab219eabc39774fa3 Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support Email: support@speakpro.app
Linear Regression Lab
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Linear Regression Lab é um aplicativo educacional interativo para o ensino do conceito estatístico de regressão linear, voltado a estudantes da área da saúde, pesquisadores e educadores em métodos quantitativos. COMO FUNCIONA A liga é composta por 7 rounds. Em cada um, você recebe um dataset clínico simulado e deve ajustar manualmente uma reta de regressão sobre os pontos do gráfico. Quanto mais próxima sua reta estiver da solução ótima dos Mínimos Quadrados Ordinários (OLS), maior a sua pontuação. Há ainda um bônus por velocidade — finalizar antes do tempo máximo aumenta a recompensa. Entre os rounds, um quiz traz questões teóricas sobre os conceitos fundamentais — coeficientes, resíduos, coeficiente de determinação, correlação, outliers e limitações do modelo linear. CONTEÚDO COBERTO - Reta de regressão e o método dos mínimos quadrados (OLS) - Coeficientes β₀ (intercepto) e β₁ (inclinação) - Resíduos e o cálculo do RSS (Soma dos Quadrados dos Resíduos) - Coeficiente de determinação R² - Coeficiente de correlação r de Pearson - Influência de outliers sobre o ajuste - Visualização da paisagem RSS via heatmap interativo - Correlação versus causalidade - Limitações do modelo linear DATASETS CLÍNICOS DIDÁTICOS Cada round apresenta um cenário clinicamente plausível, mas TODOS OS DADOS SÃO SIMULADOS para fins didáticos. Os 7 cenários cobrem áreas variadas: - Sono e cognição (neurologia) - Exercício e glicemia (endocrinologia) - IMC e pressão arterial (cardiologia) - Estresse e cortisol (medicina ocupacional) - Vitamina D e depressão (psiquiatria) - Frequência respiratória e SpO₂ (medicina interna) - Dose e redução da pressão arterial (farmacologia) RECURSOS - Scatter plot interativo com reta arrastável em tempo real - Heatmap da paisagem RSS para visualizar o espaço dos parâmetros - Estatísticas ao vivo: β
Screenshots
Verdict
The clearest difference is in-app purchases: Linear Regression Lab at none against English Shadowing's 2. Linear Regression Lab also leads on update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement 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. English Shadowing sells 2 in-app purchases, starting at $7.99 per month. Linear Regression Lab asks for nothing beyond the download.
English Shadowing ships an update weekly, Linear Regression Lab every 3 days. The most recent releases landed on October 28, 2026 and October 14, 2026 respectively.
| Parameter | English Shadowing | Linear Regression Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (117 ratings) — better | — |
| Positive reviews | 72.2% of reviews | — |
| Number of ratings | 117 — better | — |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 43 MB | 11 MB |
| Age rating | 9+ | 12+ |
| Developer | Konstantin Simakov | Henrique Alvarenga da Silva |
In-app purchases
English Shadowing
- 1 Month Pro$7.991 Month
- 1 Year Pro$49.991 Year
Linear Regression Lab
No in-app purchases
Questions
Is English Shadowing free?
Is Linear Regression Lab free?
Do English Shadowing or Linear Regression Lab have ads?
Which is updated more often, English Shadowing or Linear Regression Lab?
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