Comparison

PDF Voice Reader vs Biological Decoding

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

Head to head
About

PDF Voice Reader

Convert documents like PDFs and Word files into natural-sounding audio. Listen on the go with background playback, customize your listening experience with adjustable speed and voices, and visually track spoken text with color highlighting. Supports cloud sync, translation, and scanning of paper documents.

Highlights
  • Background audio playback
  • Adjustable speech speed and voice
  • Color highlighting of spoken text
  • Cloud storage integration
  • Text translation
  • Document scanning to audio
  • Web content to speech
Features
Read full description

Give Your Eyes a Rest – Let Your Documents Speak! Tired of screen fatigue? PDF Voice Reader – Docs Aloud turns your PDFs, Word files, and more into natural-sounding audio, so you can listen anytime, anywhere. Perfect for studying, commuting, or simply giving your eyes a well-deserved break. Key Features: • Listen on the go – Supports background playback for multitasking • Customizable experience – Adjust speed, voice, and skip headers/footers • Color Highlighting – Visually track spoken text with customizable colors! Perfect for following along, studying, or improving comprehension as words light up in sync with the audio. • Seamless cloud sync – Works with iCloud, Dropbox, Google Drive & more • Smart tools – Bookmarking, text translation, and multiple voice options • Accessibility-friendly – Ideal for students, professionals, and visually impaired users • Scan & Listen – Turn paper documents and books into audio with built-in scanning • Web-to-Speech – Listen to articles, blogs, and online content directly from websites! Just paste the URL, and the app will read it aloud. Following formats are supported: • PDF. • Microsoft Documents. • Rich Text Format. • Plain Text. Transform reading into listening—download PDF Voice Reader today! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Biological Decoding

Explore the emotional conflicts linked to behaviors, diseases, and bodily systems. Access a comprehensive catalog of decodings researched by experts. New content is added periodically to expand your understanding.

Highlights
  • Find conflicts associated with behaviors
  • Discover meanings related to diseases
  • Decode organ and body system conflicts
  • Access researched decodings
  • Periodic updates with new content
Features
Read full description

Biological Decoding allows you to quickly and easily find the conflicts associated with behaviors and diseases as well as the conflicting meaning related to each organ and system of the body. It contains decodings compiled and researched by Enrique Bouron and other recognized researchers New decodings are added and updated periodically. To make an in-app purchase of Biological Decoding subscription, open the app. In the decoding details tap GET YOUR SUBSCRIPTION. Subscriptions begin at from $3.99 a month in the US, and can vary by region. With a Biological Decoding subscription you have access to all conflicts associated with behaviors and diseases as well as the conflicting meaning related to each organ and system of the body. Subscriptions purchased from the app will be charged to your iTunes account and will automatically renew within 24 hours prior to the end of the current subscription period, unless auto-renewal is disabled beforehand. To manage your subscriptions or to disable auto-renewal, after purchase, go to your iTunes account settings. A subscription cannot be cancelled during the active subscription period. Any unused portion of a free trial period, if offered, will be forfeited where applicable. Terms of use: https://www.biologiatotal.com/app/about/terms?culture=en Privacy Policy: https://www.biologiatotal.com/app/about/privacy?culture=en

Screenshots

PDF Voice Reader4 screens
Biological Decoding4 screens

Verdict

The call

The clearest difference is rating: PDF Voice Reader at 4.1 against Biological Decoding's 3.0. PDF Voice Reader also leads on ratings volume (955 vs 6). Biological Decoding's advantage is ads (none vs shown) and iOS requirement (8.0 vs 26). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDF Voice Reader sells 16 in-app purchases, starting at $4.99 per month and Biological Decoding sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF Voice Reader holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: PDF Voice Reader has 955 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 22% of PDF Voice Reader's written reviews are positive against 17% of Biological Decoding's.

Scorecard4 real differences · 6 level
PDF Voice Reader versus Biological Decoding: the parameters behind the verdict, then further details
ParameterPDF Voice ReaderBiological Decoding
PriceFreeFree
Rating4.1 (955 ratings) — better3.0 (6 ratings)
Positive reviews22.0% of reviews — better16.7% of reviews
Number of ratings955 — better6
Update frequencyEvery 3 weeks—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS268.0 — better
Further details — not scored
Size41 MB78 MB
Age rating4+17+
DeveloperStorchHumberto Calixto

Customer experience

PDF Voice Reader

All ratings944 ratings
Positive76.2%
Neutral5.3%
Negative18.5%
Written reviews328 reviews
Positive22.0%
Neutral9.8%
Negative68.3%

Biological Decoding

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews12 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Bugs and requests

PDF Voice Reader

Reported bugs

4 issues
  • App crashes frequently
  • Paid version not working as expected
  • Issues with syncing across devices
  • Reading position not saved properly

Requested features

4 requests
  • Allow selecting reading start position
  • Add more voice options and customization
  • Improve page navigation and bookmarking
  • Provide better customer support

Biological Decoding

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

PDF Voice Reader

Subscriptions2
  • Monthly$4.991 Month
  • Yearly$24.991 Year
One-time14
  • English US$4.99
  • English UK$4.99
  • English Irish$4.99
Show 11 more
  • Czech$4.99
  • Portuguese Br$4.99
  • Russian$4.99
  • Spanish Mex$4.99
  • Spanish$4.99
  • English AU$4.99
  • French$4.99
  • Chinese$4.99
  • Italian$4.99
  • Portuguese$4.99
  • PDF Voice Reader Pro$49.99
2 purchases

Biological Decoding

Subscriptions2
  • Complete catalog$3.991 Month
  • Complete catalog$39.991 Year

Questions

Is PDF Voice Reader free?
PDF Voice Reader is free to download, with in-app purchases available.
Is Biological Decoding free?
Biological Decoding is free to download, with in-app purchases available.
Which has better reviews, PDF Voice Reader or Biological Decoding?
PDF Voice Reader is rated higher. PDF Voice Reader averages 4.1 out of 5 from 955 ratings, while Biological Decoding averages 3.0 from 6 ratings.
Do PDF Voice Reader or Biological Decoding have ads?
PDF Voice Reader shows ads; Biological Decoding does not.

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