Simple TTS vs Greatest Common Divisor PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple TTS
Convert text into natural-sounding speech with a variety of voices and languages. Customize speech settings and export audio files for various uses, from study aids to content creation.
- Natural sounding voices
- Versatile text input
- Multilingual support
- Customizable speech rate, pitch, and volume
- Export audio files
- Play/Stop/Pause voice control
Read full descriptionHide full description
Transform Your Words into Powerful Speech Key Features: Natural Sounding Voices: Choose from a wide selection of lifelike voices that sound just like a real person. Versatile Text Input: Copy and paste text, upload documents, or type directly in the app - SimpleTTS can handle it all. Multilingual Support: SimpleTTS speaks your language! We support a wide range of languages and accents. Customization: Adjust the speech rate, pitch, and volume to perfectly match your preferences. Export Options: Save your TTS creations as audio files, perfect for podcasts, presentations, or simply listening on the go. # Features * Play/Stop/Pause Voice * Voice Control * Unlimited Notes * Search Notes Content * Export/Import Notes * Speak Selected Text * Theme Mode Who Can Benefit from SimpleTTS:- Students: Turn textbooks into audiobooks for easier studying. Writers: Hear your stories, articles, and content come to life. Business Professionals: Make your presentations stand out with professional narration. Content Creators: Give your videos and podcasts a unique voice. Accessibility: Ensure your content is accessible to everyone, regardless of their reading ability.
Greatest Common Divisor PRO
Read full descriptionHide full description
Finish your homework instantly. Prepare for exams without stress. Complete step-by-step solutions. Enter your numbers and calculate the greatest common divisor (GCD). HOW IT WORKS Enter your numbers into the appropriate fields and get started. You'll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don't need it. Only anonymous data is collected, for example: - which features are used - how many solutions are generated This helps us improve the app. It is not possible to identify you from this data. EXTRAS - Prime factorization - Using divisors - Euclidean algorithm - Curated learning videos - Feedback for incorrect input - Manage your own solutions - App introduction CONTACT Questions and feedback are always welcome via Discord or directly in the app review.
Screenshots
Verdict
The clearest difference is price: Simple TTS at Free against Greatest Common Divisor PRO's $1.99. On update cadence, ads, in-app purchases 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
Simple TTS is free to download; Greatest Common Divisor PRO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Simple TTS ships an update every 2 months, Greatest Common Divisor PRO every 5 weeks. The most recent releases landed on October 6, 2026 and October 29, 2026 respectively.
| Parameter | Simple TTS | Greatest Common Divisor PRO |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.5 (4 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 179 MB |
| Age rating | 4+ | 4+ |
| Developer | Mew Sang Lim | Glindemann, Sennoun, Langer GbR |
In-app purchases
Simple TTS
No in-app purchases
Greatest Common Divisor PRO
No in-app purchases
Questions
Is Simple TTS free?
Is Greatest Common Divisor PRO free?
Do Simple TTS or Greatest Common Divisor PRO have ads?
Which is updated more often, Simple TTS or Greatest Common Divisor PRO?
Other comparisons















