VIIO vs SoBrief
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
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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/
SoBrief
Access over 73,000 book summaries in over 40 languages, with AI-powered recommendations and audio playback. Discover your next read in minutes and enjoy a distraction-free learning experience.
- AI-powered book discovery
- Massive library of summaries
- Audio book summaries
- Personalized recommendations
- Multilingual summaries (40+ languages)
- Scan book barcodes for summaries
- Request book summaries
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SoBrief is the #1 AI-powered book summary app with the largest catalog, using AI to help you discover your next reads and finish any book in just 10 minutes with instant access to 73,530 book summaries in over 40 languages. MAIN FEATURES: - Swipe to Discover: Our viral "Tinder for books" feature uses AI to personalize book recommendations, making discovery fun and addictive. - Massive Library: Bestsellers, classics, niche titles, ebooks, and exclusive content across Business, Self-Help, Romance, Thriller, Psychology, History, Science, Philosophy, Biographies, and more. - Audio Book Summaries: Listen to narrated summaries anytime, anywhere—in your preferred language. A perfect microlearning app experience. - AI-Powered Book Recommendations: Let AI find perfect books based on your reading taste and preferences. - Search & Discover: Effortlessly find specific summaries or discover exciting new titles with intuitive search and personalized recommendations. - Scan Books Instantly: Scan any book barcode to get its summary immediately. - Requests: Seamlessly request books to summarize if not in our catalog. - Multilingual Access: Summaries available in 40+ languages: Spanish, Chinese Simplified, French, German, Japanese, Portuguese, Italian, Korean, Russian, Dutch, Arabic, Polish, Hindi, Vietnamese, Swedish, Greek, Turkish, Thai, Czech, Romanian, Hungarian, Ukrainian, Indonesian, Danish, Finnish, Bulgarian, Hebrew, Norwegian, Croatian, Catalan, Slovak, Lithuanian, Slovenian, Serbian, Estonian, Latvian, Persian, Malayalam, Tamil, and Urdu. EFFORTLESS LEARNING EXPERIENCE: - Absorb key ideas quickly, ideal for busy lives and daily microlearning. - Enjoy an ad-free, distraction-free learning environment. HOW SOBRIEF WORKS: - Download SoBrief and explore tens of thousands of summaries. - Add interactive widgets for continuous, effortless learning. - Listen to or read summaries in multiple languages at your convenience. - Unlock knowledge effortlessly and transform daily moments into growth, insight, and inspiration. Download SoBrief today. Terms of Use: https://sobrief.com/terms Privacy Policy: https://sobrief.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: VIIO at 68% against SoBrief's 16%. VIIO also leads on rating (4.7 vs 4.4) and update cadence (fortnightly vs every 6 weeks). On price, ads, in-app purchases and monetization model 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 SoBrief sells 7 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
VIIO holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 1.2K and 360 respectively. Written reviews point the same way: 68% of VIIO's written reviews are positive against 16% of SoBrief's.
VIIO ships an update fortnightly, SoBrief every 6 weeks. Both last shipped on September 24, 2026.
| Parameter | VIIO | SoBrief |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.2K ratings) — better | 4.4 (360 ratings) |
| Positive reviews | 68.4% of reviews — better | 16.2% of reviews |
| Number of ratings | 1.2K — better | 360 |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.5 |
| Further details — not scored | ||
| Size | 124 MB | 15 MB |
| Age rating | 4+ | 17+ |
| Developer | Otonye Bestman | Audiblogs, Inc. |
Customer experience
VIIO
SoBrief
User reviews
VIIO
From 1.2K App Store ratingsWhat we love
- 💡 Useful for reading and comprehension
- 👍 Easy to use and navigate
- 🚀 Efficient text-to-speech functionality
- 👍 Helpful for neurodiverse users
Room to improve
- 🐛 Frequent crashes and stability issues
- 🔒 Concerns about paid subscription model
- 🔋 Complaints about character/word limits in free version
- 👎 Robotic or unnatural-sounding voices
SoBrief
From 360 App Store ratingsWhat we love
- 👍 Great concept
- 👍 Love the idea
- 👍 Appreciated for catching up on books
- 👍 Allows accelerated reading
- 👍 Summaries are good and informative
Room to improve
- 😞 App crashes frequently
- 😞 Technical issues
- 😞 Low-quality AI summaries
- 😞 Extortionate fees/pricing
- 😞 App not working
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
SoBrief
Reported bugs
25 issues- App crashed and stopped working
- App not working
- App crashes frequently
- Delete account button not functional
- Refuse to remove my data
Show 20 moreShow fewer
- Delete account button doesn't work
- App keeps crashing on the first sentence
- Not functional
- Every time I try to read a summary it says I need to sign up again
- Doesn't show saved books, interests, etc.
- Cannot access materials
- Doesn't seem to be a way to access 10 free summaries
- Paid plan still doesn't work
- Issue after issue since signing up
- App doesn't function as supposed to
- Telling me that I haven't signed up and I'm still using the free account
- AI person told me that only paying customers can speak to someone
- The 'tinder' style book recommendation engine has worked LITERALLY ONCE
- Received nothing except for the title error since then
- Half of the features are either underbaked or just straight not there
- Language I needed wasn't even available
- Selecting other languages often leads to a blank screen with just a small 'not found' message
- App is full of bugs
- Thinks you don't have an account when you do
- A lot of books that aren't summarized yet
Requested features
5 requests- Allow users to see how the app works before paying
- Upload GoodReads history
- Include Spanish in languages section
- Better book recommendation engine
- More human-written summaries
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
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- 50,000 human characters$3.99
- 100,000 human characters$5.99
- 200,000 human characters$10.99
SoBrief
- SoBrief Pro (Monthly)3 Days trial$9.991 Month
- SoBrief Pro (Monthly)$9.991 Month
- SoBrief Pro (Yearly)$29.991 Year
Show 2 moreShow fewer
- SoBrief Pro (Yearly)3 Days trial$44.991 Year
- SoBrief Pro (Yearly)$44.991 Year
- SoBrief Pro (Lifetime)$59.99
- SoBrief Pro (Lifetime)$79.99









