# Logeion

> Simultaneous lookup for Greek and Latin words in multiple classical dictionaries. (iPhone/iPad app by The University of Chicago.)

- Source: https://appshunter.io/ios/app/logeion/id727860177 (this page in markdown: same URL + `.md`)
- Developer: [The University of Chicago](https://appshunter.io/developer/373835814)
- Category: Reference, Education
- Price: Free
- Rating: 4.40/5 from 71 App Store ratings · 64 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 628 MB
- Languages: American English
- Released: 2013-10-24
- Data updated: 2026-08-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/logeion/id727860177/reviews.md

## What is Logeion?

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)

## Key features

- Simultaneous Greek and Latin word lookup
- Multiple classical dictionaries
- Frequency and collocation data
- Corpus examples
- Draws from Greek and Latin textbooks

## Recent user reviews (10 of 64)

All indexed reviews: https://appshunter.io/ios/app/logeion/id727860177/reviews.md

### 5/5 — It works!

*2026-02-02*

And this app is great.

### 5/5 — Terrific app

*2025-10-12, version 3.3*

Very well suited to iPad reading. Naturally Attikos should be downloaded alongside it.

### 5/5 — Hoc mihi placet

*2025-02-19*

Bonus Latin dictionarium

### 5/5 — complete

*2025-01-27*

contains liddell-scott and lewis-short dictionaries, in a robust professional app.  and IT’S FREE!  as a classicist, I can’t imagine better;  as a man, I can’t understand a negative review of this resource.

### 5/5 — Amazing

*2024-06-27*

Great source of information, if someone can explain the frequency rank what does it mean? 

Thank you

### 5/5 — Finally an update!

*2024-01-06*

You guys are the best! Thanks for the update! I highly recommend this app, I use it all the time to look up Greek words.

### 5/5 — Thank you for keeping updated!

*2024-01-05*

Thank you for the recent update making Logeion usable again! It’s the best platform for accessing Classics dictionaries on iOS. I really enjoy offline access for reading on the go, the dual functionality for Latin and Greek, and the choice of dictionaries.

### 5/5 — THANK YOU FOR THE UPDATE

*2024-01-05, version 3.1*

🙏

### 1/5 — App crashes before opening

*2023-12-11*

The developer advises many of us to report the crash in the app, but for me, the app does not open. It starts, then crashes.  There’s no way for me to enter the information requested because the app does not open. I’m using the latest IOS

**Developer response:** hi, just to let you know that there is also a website: logeion.uchicago.edu. Never mind, though, the new version is now up in the app store. Thank you for your patience. Please report any further problems you encounter.

### 1/5 — Needs updating

*2023-11-19*

This was a great app but now it crashes on the lastest IOS. Please update!

**Developer response:** Hi, Please use Logeion problem reports to get a sneak preview of the update, like those who reported it to us directly.

## Frequently asked questions about Logeion

### What does the Logeion app do?

Logeion provides simultaneous lookup for Greek and Latin words across multiple classical dictionaries. It also offers frequency information, collocation data, and examples from the Perseus Digital Library corpus for frequently used words.

### What dictionaries and textbooks are included?

The app includes lexicons such as Liddell and Scott's Greek-English Lexicon, DGE, Slater's Lexicon to Pindar, Lewis and Short's Latin-English Lexicon, and the Dictionary of Medieval Latin from British Sources. It also draws data from various Greek and Latin textbooks like Wheelock's Latin and Reading Greek.

### Is Logeion free to use?

Yes, Logeion is a free application. It does not have any in-app purchases or advertisements, making it fully accessible for users.

### Who is the target audience for Logeion?

This app is designed for students, researchers, and anyone studying classical languages like Greek and Latin. It is particularly useful for those who need to consult multiple dictionaries and reference materials efficiently.

### What kind of information can I find for words?

For each word, you can find its entry in various classical dictionaries. For frequent words, the app also provides information on word frequency, common collocations, and example sentences drawn from a corpus of classical texts.

## Version history (last 5 releases)

### 3.3 — 2024-01-14

• Bug fixes and performance improvements.
• Added Brill-Montanari for the letter lambda.

### 3.2 — 2024-01-07

Fixed bug that omitted uppercase Latin words from search results

### 3.1 — 2024-01-02

Minor bug fixes and improvements

### 3.0 — 2024-01-01

• Fixed bugs caused by incompatibility with the latest version of iOS
• Added support to adhere to system appearance (dark mode) and text size settings
• Added Bailly 2020, Greek-French; Pape Greek-German; Cunliffe's Homeric Lexicon; Abbott-Smith's NT Lexicon; Gaffiot 2016 Latin-French; Lexicon Magnum Latino-Sinicum.
• Added additional textbooks
• For bibliographical details on the above, see https://logeion.uchicago.edu/about

### 2.0 — 2016-08-19

This app has been updated by Apple to display the Apple Watch app icon.

• Simplified user interface for easier navigation.
• Added support for Slide Over and Split View Multitasking.
• Added recent searches above the word wheel.
• Added DMLBS, the Dictionary of Medieval Latin from British Sources, courtesy of the British Academy, as well as the first installments of the new Greek Dutch dictionary.
• Added lexicon on the Aeneid by Frieze (rev. Dennison), thanks to Christopher Francese at Dickinson College.
• Sentences from the Basic Latin Vocabulary have been translated into English.

Full bibliographic information and further information can be found by clicking the info button at the bottom of the word wheel. As always, please report problems through our “Report a Problem” link, which can also be found there.

## Apps similar to Logeion

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Pocket Greek Dictionary](https://appshunter.io/ios/app/pocket-greek-dictionary/id6446715748) | 5.0 (2) | Free | Reference |
| [Latin English Dictionary](https://appshunter.io/ios/app/latin-english-dictionary/id1330315483) | 4.1 (665) | Free | Reference |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*