Grammaticus vs Logeion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grammaticus
Access and search three classic Greek and Latin grammars offline. Find specific sections instantly, bookmark favorites, and view citations. Ideal for students and scholars of ancient languages.
- Offline access to Smyth, Allen & Greenough, and Goodwin grammars
- Full-text search in English, Greek, and Latin
- Jump to sections by number
- Bookmark favorite sections
- Searchable citation history
- View cited passages online
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Grammaticus gives you iOS-native versions of three of the most indispensable grammars for the study of Greek and Latin—Smyth's Greek Grammar, Allen and Greenough's New Latin Grammar, and Goodwin's Syntax of the Moods and Tenses of the Greek Verb—and augments them with powerful tools for searching and navigation. With Grammaticus, you get the full texts of these three works, as they appear on the Perseus Project website, along with the following features: * Browse the table of contents for each work, or enter any section's number to jump to it instantly—no Internet connection required! * Full-text search capabilities in English, Greek and Latin: search for "ablative absolute" to find all sections discussing the ablative absolute, or find every word beginning with γιγν- or ending in -ibus. * Want to see all citations of a particular author? You can search for citations by author or work, and then view the cited passages as they appear on the Perseus website (this last feature requires an Internet connection). * Do you find yourself returning to the same few sections again and again? Grammaticus lets you bookmark specific sections for quick access, and it keeps a history of the sections you've visited. The texts in Grammaticus are in the public domain, but they would not be available in their current form without the extraordinary efforts of the Perseus Digital Library and its editor-in-chief Gregory Crane. If you like this app, please consider donating to Perseus: http://www.perseus.tufts.edu/hopper/help/support.jsp
Logeion
Access multiple classical dictionaries for Greek and Latin words in one application. Provides frequency, collocation, and corpus examples for common terms. Includes a variety of authoritative lexicons and textbook data.
- Simultaneous Greek and Latin word lookup
- Multiple classical dictionaries
- Frequency and collocation data
- Corpus examples
- Draws from Greek and Latin textbooks
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Use one app to look up any Greek or Latin word: Logeion was developed at the University of Chicago to provide simultaneous lookup of entries in many classical dictionaries. In addition, for frequent words, some frequency and collocation information is given plus examples from the corpus at perseus.uchicago.edu. • Liddell and Scott's Greek-English Lexicon (1940) • DGE (Diccionario Griego–Español). In progress; up to έξαυος. • Slater's Lexicon to Pindar (1969) • Woordenboek Grieks/Nederlands (in progress). • Lewis and Short, Latin-English Lexicon (1879) • The Dictionary of Medieval Latin from British Sources, ed. R. E. Latham, D. R. Howlett, & R. K. Ashdowne (London: British Academy, 1975-2013) The app draws data from the following Greek and Latin textbooks. • Frieze (rev. Dennison) Vergil’s Aeneid Books I-XII, with an Introduction, Notes, and Vocabulary • Greek: An Intensive Course, by Hardy Hansen and Gerald M. Quinn • Reading Greek: Grammar and Exercises, by Joint Association of Classical Teachers • Learn to Read Greek, by Andrew Keller and Stephanie Russell • Learn to Read Latin, by Andrew Keller and Stephanie Russell • Introduction to Attic Greek (2nd edition), by Donald Mastronarde • Wheelock's Latin, by Frederic M. Wheelock and Richard A. Lafleur • Basiswoordenlijst Latijn [Basic Latin Vocabulary], by J.K.L. Babeliowsky, D. den Hengst, W. Holtland, W. van Lakwijk, J.Th.K. Marcelis, H. Pinkster, J.J.L. Smolenaars, Staatsuitgeverij (NEW: English translations of the example sentences)
Screenshots
Verdict
The clearest difference is update cadence: Logeion at every 5 weeks against Grammaticus's every 27 months. Logeion also leads on ratings volume (71 vs 14). Grammaticus's advantage is rating (4.7 vs 4.4) and review sentiment (100% vs 86%). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Grammaticus holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Logeion has 71 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 100% of Grammaticus's written reviews are positive against 86% of Logeion's.
Grammaticus ships an update every 27 months, Logeion every 5 weeks. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.
| Parameter | Grammaticus | Logeion |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (14 ratings) — better | 4.4 (71 ratings) |
| Positive reviews | 100.0% of reviews — better | 85.9% of reviews |
| Number of ratings | 14 | 71 — better |
| Update frequency | Every 27 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 628 MB |
| Age rating | 4+ | 4+ |
| Developer | Adrian Packel | The University of Chicago |
Customer experience
Grammaticus
Logeion
In-app purchases
Grammaticus
No in-app purchases
Logeion
No in-app purchases




