Comparison

Richta vs Grim Reader

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

Head to head
About

Richta

This application performs complex time-speed-distance calculations for road rallies, essential for participants in events sanctioned by organizations like the SCCA. It provides the necessary tools for accurate rally navigation and timing.

Highlights
  • Time-speed-distance calculations
  • Road rally navigation
  • SCCA sanctioned event support
  • Accurate timing tools
Read full description

The Richta Rally Calculator is a software program which is intended to perform the calculations necessary for time-speed-distance road rallies, such as those sanctioned by the Sports Car Club of America.

About

Grim Reader

Organize and enrich your personal library of e-books, comics, and audiobooks. This app allows you to manage your collection locally or via your own servers, adding details like covers and author information. Enjoy a seamless reading and listening experience across all your content.

Highlights
  • Library management for e-books, comics, and audiobooks
  • Enrich library with online book and author data
  • Supports local files and personal servers (WebDAV, OPDS)
  • Cross-device reading and listening progress tracking
  • Organize by author, series, and genre
  • Mark favorites
Features
Read full description

Your books. Your library. Your way. Privacy By Design. Made in the EU. Grim Reader is a modern reader and library manager for e-books, comics and audiobooks. Keep your collection on your device, connect to your own servers, and turn even a simple collection of files into a rich, beautifully organised library. A library that feels alive Browse your collection by books, authors, series and more. See covers, reading progress and detailed information at a glance, continue where you left off, mark favourites and quickly find what you want to read next. Grim Reader is designed for both iPhone and iPad, with an interface that adapts to the device you are using. Enrich your books Missing a cover, description or other information? Grim Reader can help enrich your library using online book and author sources. Depending on the available information, Grim Reader can help you find and add details such as: • Covers and book descriptions • Authors and author information • Series information • Publisher and publication details • ISBN and other identifiers • Genres, categories and tags • Additional book metadata You remain in control and can review and edit your library information. More than e-books Grim Reader brings different types of reading together in one library: • Read e-books • Browse and read comics • Listen to audiobooks • Keep track of reading progress • Continue reading or listening across your library • Organise books by author and series • Mark books and authors as favourites Your files, your servers You don’t need to hand your library over to a commercial book platform. Grim Reader can work with books stored locally and supports personal libraries through WebDAV and OPDS, as well as the optional Grimmory server. This makes Grim Reader equally useful for a small collection on your iPhone or iPad and for a large self-hosted library. Made for readers Grim Reader focuses on your books rather than a store. There are no books to sell you and no ecosystem you need to buy into. Build the library you want, enrich it, organise it and enjoy reading it. Grim Reader — your library belongs to you.

Screenshots

Richta1 screens
Grim Reader3 screens

Verdict

The call

The clearest difference is price: Grim Reader at Free against Richta's $9.99. Grim Reader also leads on update cadence (every 3 weeks vs every 5 months) and ratings volume (3 vs 1). Richta's advantage is iOS requirement (12.0 vs 17.0). On rating, ads, in-app purchases and device support 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

Grim Reader is free to download; Richta costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Richta against 5.0 for Grim Reader. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Richta ships an update every 5 months, Grim Reader every 3 weeks. The most recent releases landed on September 13, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 4 level
Richta versus Grim Reader: the parameters behind the verdict, then further details
ParameterRichtaGrim Reader
Price$9.99Free — better
Rating5.0 (1 ratings)5.0 (3 ratings)
Number of ratings13 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size1 MB15 MB
Age rating4+4+
DeveloperDavid BiretaMaarten de Kreij

Customer experience

Richta

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

Grim Reader

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Richta

No in-app purchases

None

Grim Reader

No in-app purchases

Questions

Is Richta free?
Richta costs $9.99, with no in-app purchases.
Is Grim Reader free?
Grim Reader is free to download, with no in-app purchases.
Which has better reviews, Richta or Grim Reader?
Richta and Grim Reader are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Richta or Grim Reader have ads?
Neither Richta nor Grim Reader shows ads.
Which is updated more often, Richta or Grim Reader?
Richta ships an update every 5 months, and Grim Reader every 3 weeks. Most recently, Richta was updated on September 13, 2026 and Grim Reader on September 24, 2026.

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