Comparison

Graph Theory Book vs Lima DRM

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

Head to head
About

Graph Theory Book

Access and read all eBook editions of a comprehensive graph theory textbook. Enjoy high-quality, searchable PDFs with active cross-references. An optional upgrade allows for PDF annotations.

Highlights
  • Downloadable eBook editions
  • Multiple language support
  • Searchable PDF format
  • Active cross-references
  • Optional PDF annotation upgrade
  • Read-only eBook
Features
Read full description

This app can download and display all the eBook editions of the Springer Graduate Text 173, Graph Theory, by Reinhard Diestel. The book is currently available in English, German, Chinese, Japanese and Russian. On iPhones, all books can be downloaded for free. On iPads, the purchase of any edition in a given language entitles you to free downloads of all other editions - past, present and future - in that language. Each eBook comes in high-quality searchable PDF; the same that was used to produce the corresponding print edition. The cross-references in the text and in the margins of the English and the German editions are active links: click on the "3.1" in a reference to Lemma 3.1 to be taken to that lemma. The eBook itself is read-only. There is a "Pro" upgrade available from within each book that allows for the usual PDF annotations, including resizable pencil comments. A Professional edition of the book, which can be annotated and printed, is available from the author's website for the book; see http://diestel-graph-theory.com/professional.html Publisher's blurb: This standard textbook of modern graph theory combines the authority of a classic with the engaging freshness of style that is the hallmark of active mathematics. It covers the core material of the subject with concise yet reliably complete proofs, while offering glimpses of more advanced methods in each field by one or two deeper results, again with proofs given in full detail. The book can be used as a reliable text for an introductory course, as a graduate text, and for self-study. From the reviews: "This outstanding book cannot be substituted with any other book on the present textbook market. It has every chance of becoming the standard textbook for graph theory." Acta Scientiarum Mathematiciarum "Deep, clear, wonderful. This is a serious book about the heart of graph theory. It has depth and integrity." Persi Diaconis & Ron Graham, SIAM Review "The book has received a very enthusiastic reception, which it amply deserves. A masterly elucidation of modern graph theory." Bulletin of the Institute of Combinatorics and its Applications "Succeeds dramatically ... a hell of a good book." MAA Reviews "A highlight of the book is what is by far the best account in print of the Seymour-Robertson theory of graph minors." Mathematika "... like listening to someone explain mathematics." Bulletin of the AMS App written by Alfred Cots Via (www.symphonicapps.com)

About

Lima DRM

Features
Read full description

The Lima DRM app is a digital document mining application, that allows users to circulate (borrow/return) digital documents and read digital content on personal devices anytime, anywhere. Main features: - Flexible search, connecting search directly to digital resource management application, easy-to-see interface, responsive searching and reading document metadata for even readers who do not have an account. - Loaning and downloading digital documents is easy for readers who already have an account - Manage personal bookshelves: reading documents, expired documents - Renew according to usage needs and return documents at any time - Support to read documents anytime, anywhere, even without an Internet connection - Various tools to exploit documents in the reading process (Bookmarks, notes, customized reading mode, ..)

Screenshots

Graph Theory Book4 screens
Lima DRM3 screens

Verdict

The call

The clearest difference is in-app purchases: Lima DRM at none against Graph Theory Book's 11. Lima DRM also leads on update cadence (every 3 weeks vs every 2 months). 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. Graph Theory Book sells 11 one-off in-app purchases. Lima DRM asks for nothing beyond the download.

UpkeepUpdate frequency

Graph Theory Book ships an update every 2 months, Lima DRM every 3 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Graph Theory Book versus Lima DRM: the parameters behind the verdict, then further details
ParameterGraph Theory BookLima DRM
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.1 — better14.0
Further details — not scored
Size7 MB84 MB
Age rating4+4+
DeveloperReinhard DiestelD&L Technology Integration And Consulting Joint Stock Company

In-app purchases

11 purchases

Graph Theory Book

One-time11
  • 1. The Basics$0.99
  • 2. Matching, Covering, and Packing$0.99
  • 3. Connectivity$0.99
Show 8 more
  • 6. Flows$0.99
  • 9. Ramsey Theory for Graphs$0.99
  • 11. Random Graphs$0.99
  • 12. Minors Trees and WQO$0.99
  • Hints for all the Exercises$9.99
  • Graph Theory$12.99
  • 图论$14.99
  • English stand-alone pro edition$32.99
None

Lima DRM

No in-app purchases

Questions

Is Graph Theory Book free?
Graph Theory Book is free to download, with in-app purchases available.
Is Lima DRM free?
Lima DRM is free to download, with no in-app purchases.
Do Graph Theory Book or Lima DRM have ads?
Neither Graph Theory Book nor Lima DRM shows ads.
Which is updated more often, Graph Theory Book or Lima DRM?
Graph Theory Book ships an update every 2 months, and Lima DRM every 3 weeks. Most recently, Graph Theory Book was updated on September 29, 2026 and Lima DRM on October 7, 2026.

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