Comparison

Nautlius vs Speech AI Coach

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

Head to head
About

Nautlius

This app provides a comprehensive suite of tools for STEM education and professional use. It offers engineering calculators, unit conversions, property lookups, and simulation capabilities. Students and professionals can utilize it for quick calculations and data analysis.

Highlights
  • Engineering calculators
  • Free body diagrams
  • Property lookup tables
  • Experiment simulations
  • Unit conversion
Features
Read full description

Nautilus is an engineering and STEM toolbox for students and professionals. Features: - Engineering Calculators: Choose from hundreds of equations and subjects for quick calculations - Free Body Diagrams: Quickly copy and paste free body diagrams with calculated values - Property Lookup: Easily find values from tables and properties - Simulations: Run your own simulations for various experiments - Unit Conversion: Convert between hundreds of units Nautilus does not contain any subscriptions or in-app purchases.

About

Speech AI Coach

Enhance your speaking skills with guided lessons and exercises. Reduce filler words, improve clarity, and build confidence for everyday conversations and presentations. Get personalized feedback to track your progress.

Highlights
  • Guided speaking lessons
  • Daily speaking practice
  • Filler word awareness training
  • Clarity and pacing exercises
  • Confidence-building drills
  • Presentation and interview practice
  • Progress tracking
Features
Read full description

Speak more clearly. Sound more confident. Communicate better every day. Speech Coach helps you improve the way you speak with guided lessons, speaking exercises, and feedback designed for real-life communication. Whether you want to reduce filler words, speak with more clarity, prepare for presentations, or feel more confident in conversations, Speech Coach gives you practical tools to build better speaking habits step by step. What you can improve • Clearer pronunciation and articulation • Better pacing and speaking rhythm • Fewer filler words like “um” and “uh” • Stronger confidence in conversations • More effective presentation and interview skills • Better tone, delivery, and verbal presence How it works Practice with short daily exercises, complete guided speaking lessons, and get feedback that helps you understand how you sound and where to improve. Train with real-world scenarios like small talk, meetings, interviews, and presentations. Inside the app • Daily speaking practice • Guided speech and conversation lessons • Filler word awareness training • Clarity and pacing exercises • Confidence-building speaking drills • Presentation and interview practice • Progress tracking and performance insights Built for real situations Speech Coach is made for students, professionals, job seekers, creators, and anyone who wants to speak more naturally and confidently in everyday life. Subscription & Pricing Some features and content require a subscription. Free features are available with optional in-app purchases for full access to all lessons, exercises, and advanced feedback tools. Start speaking with more clarity, confidence, and control. Developed by Fastemy - Fast and Fun Education Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Nautlius4 screens
Speech AI Coach4 screens

Verdict

The call

The clearest difference is in-app purchases: Nautlius at none against Speech AI Coach's 5. Speech AI Coach's advantage is ratings volume (28 vs 2). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Speech AI Coach sells 5 in-app purchases, starting at $4.99 per month. Nautlius asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Nautlius against 4.9 for Speech AI Coach. That said, the two scores are not equally well evidenced: Speech AI Coach has 28 ratings behind it against 2, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Nautlius versus Speech AI Coach: the parameters behind the verdict, then further details
ParameterNautliusSpeech AI Coach
PriceFreeFree
Rating5.0 (2 ratings) — better4.9 (28 ratings)
Positive reviews—75.0% of reviews
Number of ratings228 — better
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.6 — better
Further details — not scored
Size13 MB23 MB
Age rating4+4+
DeveloperTroy HustedAbdullah YILMAZ

Customer experience

Nautlius

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Speech AI Coach

All ratings27 ratings
Positive96.3%
Neutral3.7%
Negative0.0%
Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Nautlius

No in-app purchases

5 purchases

Speech AI Coach

Subscriptions4
  • Speech AI Coach Premium Monthly$4.991 Month
  • Speech AI Coach Premium Yearly1 Month trial$39.991 Year
  • Speech AI Coach Premium Yearly7 Days trial$39.991 Year
Show 1 more
  • Speech AI Coach Premium Yearly$39.991 Year
One-time1
  • Speech AI Coach Premium Lifetime$89.99

Questions

Is Nautlius free?
Nautlius is free to download, with no in-app purchases.
Is Speech AI Coach free?
Speech AI Coach is free to download, with in-app purchases available.
Which has better reviews, Nautlius or Speech AI Coach?
Nautlius is rated higher. Nautlius averages 5.0 out of 5 from 2 ratings, while Speech AI Coach averages 4.9 from 28 ratings.
Do Nautlius or Speech AI Coach have ads?
Neither Nautlius nor Speech AI Coach shows ads.

Other comparisons