Comparison

Protanopia vs Home Library Manager

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

Head to head
About

Protanopia

Experience a digital comic with a distinctive visual style blending 2D animation, 3D, and gaming aesthetics. This app offers an innovative approach to modern digital storytelling.

Highlights
  • Unique visual style
  • 2D animation elements
  • 3D graphics
  • Gaming aesthetics
  • Modern digital comic format
Features
Read full description

Featuring a unique style that combines elements from 2D animation, 3D, comics and games, Protanopia is an experimental take on what a modern digital comic can be.

About

Home Library Manager

Easily manage your personal book collection by scanning barcodes, adding detailed descriptions, and organizing them into smart collections. Track your reading progress and sync your library across all your devices.

Highlights
  • Barcode scanning for quick book entry
  • Detailed book information fields
  • Smart collections based on various parameters
  • Reading status and page tracking
  • iCloud sync across iOS devices
  • Home screen widgets for reading progress
Features
Read full description

Leto is a simple and beautiful book management app that helps you to easily keep track of the books you are currently reading, would like to read or already have. EASILY ADD BOOKS BY SCANNING THEIR BARCODE Adding books to Leto is super easy and fast. Just by scanning its barcode, the book cover, title, author and number of pages will be automatically added. You can also import your book collection from other sources such as Goodreads or Calibre. ADD RICH DESCRIPTIONS TO YOUR BOOKS When you add a new book, Leto allows you to specify a wide variety of details for a better description of the book. The available parameters range from the title and author of the work, to the genre, the original language of the text, whether it is written in verse or prose, identifiers such as ISBN and Thema codes, and even its dimensions and weight. It will not be necessary for you to include all that information at first, but you will have it at your disposal if you wish. ORGANIZE YOUR BOOKS IN SMART COLLECTIONS Leto allows you to create smart book collections based on a wide variety of parameters, so that you can have your books grouped according to the criteria that you consider the most appropriate. Specifically, you can keep your library organized by creating collections based on author, language, read-status, publisher, genre, and so on. KEEP TRACK OF THE BOOKS YOU ARE READING AND ITS CURRENT PAGE Each book you add to Leto has a read-status, which can be: “To Read”, “Reading”, “Finished” or “Left Unfinished”. Leto automatically creates different book collections based on their status so that you can have them well organized. In addition, you can keep track of your reading progress by indicating the current page of the books in question. SEAMLESSLY SYNC YOUR LIBRARY ACROSS DEVICES With Leto, you can keep all your books stored in iCloud and synced seamlessly across all of your iOS devices so you can access your library from your, iPhone and iPad. WIDGETS Widgets are a great way to keep track of the books you are reading. Add to your Home Screen as many widgets as you like, each one displaying a different book. Widgets makes it easy for you to see your progress at a glance and entice you to read more.

Screenshots

Protanopia4 screens
Home Library Manager4 screens

Verdict

The call

The clearest difference is in-app purchases: Protanopia at none against Home Library Manager's 1. Protanopia also leads on review sentiment (97% vs 78%) and iOS requirement (11.0 vs 18.4). Home Library Manager's advantage is update cadence (fortnightly vs every 5 months). On price, rating, ratings volume and ads 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. Home Library Manager sells 1 one-off in-app purchase. Protanopia asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Protanopia holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 323 and 172 respectively. Written reviews point the same way: 97% of Protanopia's written reviews are positive against 78% of Home Library Manager's.

UpkeepUpdate frequency

Protanopia ships an update every 5 months, Home Library Manager fortnightly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Protanopia versus Home Library Manager: the parameters behind the verdict, then further details
ParameterProtanopiaHome Library Manager
PriceFreeFree
Rating4.8 (323 ratings) — better4.6 (172 ratings)
Positive reviews97.1% of reviews — better77.9% of reviews
Number of ratings323 — better172
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.4
Further details — not scored
Size171 MB23 MB
Age rating12+4+
DeveloperPLASTIEKAlejandro Garcia Fernandez

Customer experience

Protanopia

All ratings323 ratings
Positive94.1%
Neutral0.6%
Negative5.3%
Written reviews206 reviews
Positive97.1%
Neutral0.5%
Negative2.4%

Home Library Manager

All ratings172 ratings
Positive89.0%
Neutral7.0%
Negative4.1%
Written reviews68 reviews
Positive77.9%
Neutral10.3%
Negative11.8%

User reviews

Protanopia

From 323 App Store ratings

What we love

  • 🎨 Unique visual style
  • 👍 Engaging interactive experience
  • 💡 Innovative comic format
  • 🚀 Smooth animation and transitions

Room to improve

  • 🕰️ Wish the comic was longer
  • 🔍 Navigation and controls could be improved

Home Library Manager

From 172 App Store ratings

What we love

  • 👍 Simple and objective
  • ✨ Aesthetically perfect
  • 👍 Minimalist but functional
  • 👍 Easy to use
  • 👍 Catalan language support

Room to improve

  • 🐛 Difficulty exporting data
  • 🐛 Incomplete book metadata
  • 🐛 Issues saving certain data
  • 🐛 Edit feature doesn't save changes
  • 🐛 Clumsy interface

Bugs and requests

Protanopia

Reported bugs

2 issues
  • Occasional freezing or issues with zooming
  • Compatibility problems on older devices

Requested features

3 requests
  • Add background music or sound effects
  • Expand the comic into a longer story
  • Improve navigation and controls

Home Library Manager

Reported bugs

8 issues
  • Unable to export since last update
  • Difficulty in saving certain data
  • Edit feature doesn’t save changes
  • App returns to home screen without saving
  • Widget not working
Show 3 more
  • Manual add books doesn't save title
  • Page marker feature won't save changes
  • Login screen freezes

Requested features

24 requests
  • Add rating system (1-5 stars)
  • Add start and end date for reading
  • More configurable default settings
  • Mac app
  • Accent color customization
Show 19 more
  • Ability to sort books by author last name
  • Support for CSV import from Calibre
  • Batch update book metadata online
  • More diversified search engines for book covers
  • Increased search support for Chinese books
  • Ability to manually order books within collections
  • More options for 'status' and filters
  • Distinction between 'want to read' and 'to be purchased'
  • Ability to sort library by TBR, to be purchased, not finished, etc.
  • Add date of finishing and rating
  • Add custom categories (e.g., cookbook, photography)
  • Add wish list section
  • Ability to add own fields for multiple formats (e.g., audiobooks, ebooks)
  • Add ability to rate books
  • Book dictionary/web option for easy adding
  • Star ratings with notes section
  • Ability to sort books A-Z and Z-A
  • Sort by author
  • Create barcodes or QR codes for lent books

In-app purchases

None

Protanopia

No in-app purchases

1 purchases

Home Library Manager

One-time1
  • Leto (Full Version)Free

Questions

Is Protanopia free?
Protanopia is free to download, with no in-app purchases.
Is Home Library Manager free?
Home Library Manager is free to download, with in-app purchases available.
Which has better reviews, Protanopia or Home Library Manager?
Protanopia is rated higher. Protanopia averages 4.8 out of 5 from 323 ratings, while Home Library Manager averages 4.6 from 172 ratings.
Do Protanopia or Home Library Manager have ads?
Neither Protanopia nor Home Library Manager shows ads.
Which is updated more often, Protanopia or Home Library Manager?
Protanopia ships an update every 5 months, and Home Library Manager fortnightly. Most recently, Protanopia was updated on October 24, 2026 and Home Library Manager on October 27, 2026.

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