VIIO vs Nerdmask
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VIIO
Transform written content into spoken audio with this app. Easily convert text from documents, PDFs, or copied content into a clear, audible format. Customize voice, speed, and pitch for a personalized listening experience.
- Text-to-speech conversion
- Read aloud from documents and PDFs
- Copy text for audio playback
- Adjustable reading speed
- Customizable voice options
- Highlighting important sections
Read full descriptionHide full description
Introducing VIIO, the revolutionary app that brings text to life by reading it out loud! With VIIO, you can transform any written content into an immersive audio experience, allowing you to absorb information effortlessly, whether you're on the go or simply prefer listening over reading. VIIO offers a seamless and intuitive interface, making it incredibly easy to use. Simply copy text, take pictures of documents, or upload PDF files, and VIIO will instantly convert them into crystal-clear audio. Say goodbye to tedious reading sessions and let VIIO do the work for you. Ideal for students, professionals, or anyone seeking a convenient way to understand and retain information, VIIO offers a range of powerful features. Customize the reading speed and voice to suit your preferences, and take advantage of advanced options like highlighting important sections or adjusting the voice pitch for enhanced clarity. VIIO isn't just about convenience; it's also a versatile tool for accessibility. Empower visually impaired individuals or those with reading difficulties to access a world of knowledge with ease. VIIO's text-to-speech technology is designed to provide a smooth and natural reading experience, ensuring every word is delivered with precision and accuracy. Download VIIO now and experience the future of text consumption. Embrace the power of audio and unlock a new way to understand and learn. Let VIIO be your trusted companion in transforming written content into an immersive audio journey, making knowledge accessible to all. Terms of Use - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Nerdmask
Transform your study notes into engaging audiobooks, interactive quizzes, and concise summaries using AI. This app makes learning faster, more enjoyable, and effective by allowing you to study anywhere, anytime. Challenge friends with custom quizzes and leverage AI-powered techniques for optimized learning.
- AI-powered note conversion
- Create podcasts and audiobooks from notes
- Generate quizzes and summaries
- Listen to notes anywhere
- Custom quiz creation
- Spaced repetition learning
- AI-powered study techniques
Read full descriptionHide full description
Exam tomorrow? Pass by playing. Nerdmask turns your notes into games, podcasts and exams — so studying feels like playing, and it sticks. HOW IT WORKS - Upload anything: PDFs, photos of your notes, audio, YouTube videos. - Play your material: flashcards, true/false, quizzes — earn EXP and keep your streak. - Turn any class into an AI podcast and listen anywhere. - Take AI-generated exams with instant correction. - Chat with your notes: ask anything, get answers from YOUR material. - Smart review brings questions back right before you'd forget them (spaced repetition). Over 500,000 students already study by playing. Rated 4.8 on the App Store. Download NerdMask and pass your next exam — by playing. Upgrade to NerdMask Pro for unlimited AI generations and full access to every mode. Terms: http://www.nerdmask.com/terms Privacy: http://www.nerdmask.com/privacy
Screenshots
Verdict
VIIO and Nerdmask both sit at 4.7 stars, but that hides the real split: 68% of VIIO's written reviews are positive against 29% of Nerdmask's. VIIO also leads on ratings volume (1.2K vs 198). Nerdmask's advantage is update cadence (every 2 days vs fortnightly). On price, rating, ads and in-app purchases 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. VIIO sells 10 in-app purchases, starting at $2.99 per month and Nerdmask sells 6 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for VIIO against 4.7 for Nerdmask. That said, the two scores are not equally well evidenced: VIIO has 1.2K ratings behind it against 198, so its average is the more settled of the two. Written reviews are what separate them: 68% of VIIO's written reviews are positive against 29% of Nerdmask's.
VIIO ships an update fortnightly, Nerdmask every 2 days. The most recent releases landed on September 24, 2026 and September 30, 2026 respectively.
| Parameter | VIIO | Nerdmask |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.2K ratings) | 4.7 (198 ratings) |
| Positive reviews | 68.4% of reviews — better | 28.6% of reviews |
| Number of ratings | 1.2K — better | 198 |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 124 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | Otonye Bestman | Nerdmask |
Customer experience
VIIO
Nerdmask
Bugs and requests
VIIO
Reported bugs
3 issues- App crashes after updates
- Inconsistent performance across devices
- Issues with text recognition and pronunciation
Requested features
4 requests- Ability to adjust reading speed
- Support for more languages and accents
- Improved PDF and document handling
- Integration with other reading/productivity apps
Nerdmask
Not enough reviews yet to summarise bugs or requests.
In-app purchases
VIIO
- Plus plan7 Days trial$2.991 Month
- HD plan7 Days trial$6.991 Month
- Human plan$16.991 Month
Show 1 moreShow fewer
- HD yearly plan7 Days trial$59.991 Year
- 50,000 characters$0.99
- 100,000 characters$1.99
- 200,000 characters$2.99
Show 3 moreShow fewer
- 50,000 human characters$3.99
- 100,000 human characters$5.99
- 200,000 human characters$10.99
Nerdmask
- Weekly Plan Pro$8.997 Days
- Monthly - 25% OFF$13.991 Month
- Monthly Plan Pro$18.991 Month
Show 2 moreShow fewer
- Yearly Plan Pro (20% OFF)$39.991 Year
- Yearly Plan Pro7 Days trial$99.991 Year
- Lifetime Plan$149.99
