Comparison

Respiration ID vs Plural eReader

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

Head to head
About

Respiration ID

Explore the anatomy of respiration with interactive animations and structure identification. Learn about the body, thorax, and lungs through touch-based learning and detailed text. Save and share your discoveries with the built-in drawing and screenshot tools.

Highlights
  • Interactive 3D respiratory anatomy models
  • Structure identification with text details
  • Animations of inhalation and exhalation
  • Larynx movement during breathing
  • Ribs and diaphragm interaction animation
  • Alveoli breathing animation
  • Drawing whiteboard with screenshot functionality
Features
Read full description

The Respiration ID app covers normal anatomy of respiration through animations and structure id. Structure ID is designed to teach anatomy structure by touching the part to see the name and text highlight. Detailed text is hidden or viewed at the touch of a button. All views include a drawing whiteboard feature for easy screen-print direct to the photo app to save, email or print. Body – Touch key parts of respiration for the body, head and larynx to see their names and text highlight. Animation views of inhalation and exhalation airflow for the body, head and larynx. Watch the larynx move with quiet and voiced breathing for easy understanding of this complex process. Thorax – The ribs, diaphragm & lungs are animated to show how these amazing structures work together. Front, side and back views are provided. Button shows and hides front and side rib animation. Structure ID for the muscles of respiration and key front, side, back structures are included. Lungs – Front and side animation views of the lungs and the alveoli breathing. Front, side, back lungs and alveoli structure ID. Two finger pan, zoom and rotation of all views, with easy reset button. Drawing Whiteboard feature: Drawing: freeform lines in red, blue, green or black hue. Draw and place text directly on all views. Screenshot whiteboard direct to photo app for easy email out and printing.

About

Plural eReader

Access and read your purchased digital books and content offline. This app provides interactive tools like note-taking, highlighting, and search, along with support for embedded audio and video. Enjoy a flexible reading experience with adjustable text flow.

Highlights
  • Offline reading
  • Embedded audio and video
  • Note taking
  • Highlighting
  • Search within book
  • Adjustable text flow
Features
Read full description

With Plural Publishing's eReader app, you can read your purchased Plural ebooks and digital content on the go. The app offers offline reading, embedded audio and video files, and quick access to ancillary materials. Easily switch between the original book page view and flowing text for improved navigation. Enhance your reading experience with interactive tools such as note taking, highlighting, and search inside the book capabilities.

Screenshots

Respiration ID4 screens
Plural eReader4 screens

Verdict

The call

The clearest difference is price: Plural eReader at Free against Respiration ID's $4.99. Plural eReader also leads on update cadence (every 6 months vs every 47 months) and ratings volume (14 vs 1). Respiration ID's advantage is rating (5.0 vs 1.0). On ads, in-app purchases, 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

Plural eReader is free to download; Respiration ID costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Respiration ID holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Plural eReader has 14 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Respiration ID ships an update every 47 months, Plural eReader every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Respiration ID versus Plural eReader: the parameters behind the verdict, then further details
ParameterRespiration IDPlural eReader
Price$4.99Free — better
Rating5.0 (1 ratings) — better1.0 (14 ratings)
Positive reviews—0.0% of reviews
Number of ratings114 — better
Update frequencyEvery 47 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.011.0
Further details — not scored
Size35 MB131 MB
Age rating4+4+
DeveloperBlue Tree Publishing, Inc.Plural Publishing

Customer experience

Respiration ID

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Plural eReader

All ratings12 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Respiration ID

No in-app purchases

None

Plural eReader

No in-app purchases

Questions

Is Respiration ID free?
Respiration ID costs $4.99, with no in-app purchases.
Is Plural eReader free?
Plural eReader is free to download, with no in-app purchases.
Which has better reviews, Respiration ID or Plural eReader?
Respiration ID is rated higher. Respiration ID averages 5.0 out of 5 from 1 ratings, while Plural eReader averages 1.0 from 14 ratings.
Do Respiration ID or Plural eReader have ads?
Neither Respiration ID nor Plural eReader shows ads.
Which is updated more often, Respiration ID or Plural eReader?
Respiration ID ships an update every 47 months, and Plural eReader every 6 months. Most recently, Respiration ID was updated on November 2, 2026 and Plural eReader on November 3, 2026.

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