Comparison

VIIO vs Deletrazo

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

Head to head
About

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.

Highlights
  • Text-to-speech conversion
  • Read aloud from documents and PDFs
  • Copy text for audio playback
  • Adjustable reading speed
  • Customizable voice options
  • Highlighting important sections
Features
Read 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/

About

Deletrazo

Features
Read full description

Deletrazo no te dice que fallaste. Te dice por qué. Cuando un alumno escribe «vaca» con b, la mayoría de las apps marcan una cruz roja y pasan a la siguiente palabra. Deletrazo explica la regla que se saltó, y por eso el error no se repite la semana que viene. Pensado para hablantes de herencia de 3.º a 8.º grado: niños que hablan español en casa y aprenden a escribirlo en la escuela. Ese alumno no necesita vocabulario — ya conoce la palabra. Necesita la ortografía: la tilde, la b y la v, la h que no suena, la ll y la y. • Dictado con teclado adaptado al español, con ñ, tildes y diéresis al alcance • Explicación de la regla en cada fallo, no solo la corrección • Modo concurso, con el reglamento real de un spelling bee • Modo dislexia, con tipografía y espaciado adaptados • Funciona sin conexión Sin cuentas. Sin anuncios. Sin publicidad ni rastreo. Del alumno no pedimos nombre real, ni correo, ni fecha de nacimiento. Si su maestra le da un código de clase, elige un apodo para que ella pueda seguir su progreso. Nada más.

Screenshots

VIIO4 screens
Deletrazo4 screens

Verdict

The call

The clearest difference is in-app purchases: Deletrazo at none against VIIO's 10. Deletrazo also leads on update cadence (every 4 days vs fortnightly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. VIIO sells 10 in-app purchases, starting at $2.99 per month. Deletrazo asks for nothing beyond the download.

UpkeepUpdate frequency

VIIO ships an update fortnightly, Deletrazo every 4 days. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
VIIO versus Deletrazo: the parameters behind the verdict, then further details
ParameterVIIODeletrazo
PriceFreeFree
Rating4.7 (1.2K ratings) — better—
Positive reviews68.4% of reviews—
Number of ratings1.2K — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size124 MB23 MB
Age rating4+4+
DeveloperOtonye BestmanCabizz Group Corp

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

Deletrazo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

VIIO

Subscriptions4
  • Plus plan7 Days trial$2.991 Month
  • HD plan7 Days trial$6.991 Month
  • Human plan$16.991 Month
Show 1 more
  • HD yearly plan7 Days trial$59.991 Year
One-time6
  • 50,000 characters$0.99
  • 100,000 characters$1.99
  • 200,000 characters$2.99
Show 3 more
  • 50,000 human characters$3.99
  • 100,000 human characters$5.99
  • 200,000 human characters$10.99
None

Deletrazo

No in-app purchases

Questions

Is VIIO free?
VIIO is free to download, with in-app purchases available.
Is Deletrazo free?
Deletrazo is free to download, with no in-app purchases.
Do VIIO or Deletrazo have ads?
Neither VIIO nor Deletrazo shows ads.
Which is updated more often, VIIO or Deletrazo?
VIIO ships an update fortnightly, and Deletrazo every 4 days. Most recently, VIIO was updated on September 24, 2026 and Deletrazo on September 13, 2026.

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