Comparison

LEO Dictionary vs CAL Select

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

Head to head
About

LEO Dictionary

Access extensive language dictionaries with example sentences and audio pronunciations. Improve your vocabulary with a spaced repetition system and get help with language questions in community forums.

Highlights
  • Extensive multilingual dictionaries
  • Audio pronunciation
  • Vocabulary trainer with spaced repetition
  • User-created wordlists
  • Language learning forums
  • Noun and verb tables
  • Grammar and etymology
Features
Read full description

This app offers free access to LEO's dictionaries, vocab trainer and forums. Are you in need of a reliable language reference? LEO’s comprehensive dictionaries include wide-ranging vocabulary, example sentences and audio pronunciation. Or would you like to take a foreign language to the next level? Why not try our vocab trainer with its tried-and-tested spaced repetition system. In LEOs Forum kannst du dir zudem Rat zu Sprachfragen holen, die über eine reine Wörterbuchfunktion hinausgehen. Our dictionaries contain around ­ 2,944,000 entries and is being updated as you read this. * English ⇔ German (840,000 entries) * French ⇔ German (280,000 entries) * Spanish ⇔ German (261,000 entries) * Italian ⇔ German (258,000 entries) * Chinese ⇔ German (238,000 entries) * Russian ⇔ German (373,000 entries) * Portuguese ⇔ German (171,000 entries) * Polish ⇔ German (99,000 entries) * English ⇔ Spanish (232,000 entries) * Spanish ⇔ Portuguese (77,000 entries) * English ⇔ French (61,000 entries) * English ⇔ Russian (54,000 entries) With LEO you can do more than just look up the meaning of a word in a different language. LEO also provides: * noun and verb tables * real voice audio pronunciation (no speech synthesis) * definitions * grammar and etymology, as well as other information relevant to the search term(s) including * orthographically similar words * possible base forms for inflected words * links to forum discussions containing the search term(s) Vocabulary trainer Our free vorab trainer is the perfect companion to build your vocabulary – whether at school or on your holidays. All you need is a free user account and you’re good to start your learning journey. * Use our curated wordlists to practice vocabulary used in German textbooks at secondary schools * Learn words with LEO’s spaced repetition system * Create your own wordlists – be it for school, for professional contexts or for your holidays * Set your learning targets and learn at your own speed * Enhance your language skills with a sustainable approach * Collect as many words and phrases as you like – there is no word limit even in the free version of our app Forums The LEO Forum exists to provide a platform for language-related questions that are not answered in the dictionary. If you would like to get help from other users or contribute to questions yourself, you need to register a user account (free of charge). The app contains adverts which you can choose to remove by subscribing to our ad-free version. https://www.apple.com/legal/itunes/appstore/dev/stdeula You can find a detailed description of all of our services on our website https://www.leo.org

About

CAL Select

This app is a digital color specifier for professionals, allowing users to instantly apply selected colors to images. It helps decorators, sign makers, and others find exact or similar color tones from leading brands of adhesive films, saving time and providing visual confirmation on objects.

Highlights
  • Digital color specifier
  • Integrates leading adhesive film brands
  • Apply selected colors to images
  • Instant color reference numbers and RGB values
  • Find identical or similar color tones
  • Compatible with COLORCATCH NANO
Features
Read full description

« CAL Select » first universal, digital color specifier with adhesive films. Colorix’s « CAL Select » for the first time includes leading brands of self-adhesive films. Exclusive software, especially developed for decorators, sign makers, stand builders etc. brings a selected color instantly to a picture. Selected colors (except metallics) shows up instantly on the screen of an iPhone, iPad or iPod touch including its reference number and RGB values. Thanks to its exclusive software original colors can instantly be applied (text inscription, car, logo etc.) to a picture taken by an iPhone, iPad or iPod touch. « CAL Select » not only saves the professional and his clients considerable time when surching for the right color, but shows the selected color immediately on the object. The professional instantly finds a particular color within a specific series; no more time-consuming search consulting several color specifiers. « CAL Select » instantly finds the identical or a similar color tone within a color range. Additional color specifiers such as NCS and RAL may be downloaded into the App. CAL Select is compatible with COLORCATCH NANO. COLORCATCH NANO incorporates a revolutionary new technology to accurately measure the color of smooth, structured or patterned surfaces to determine the corresponding color of the preselected swatch. NANO reads and measures 50'000 pixels separately. During reading it eliminates automatically all non-dominant colors such as shade effects and dirty surfaces. Due to technical limitations, colors seen in this App may not accurately reflect paint colors. To confirm your color choices refer to your color cards.

Screenshots

LEO Dictionary4 screens
CAL Select4 screens

Verdict

The call

The clearest difference is review sentiment: LEO Dictionary at 68% against CAL Select's 0%. LEO Dictionary also leads on price (Free vs $10.99) and update cadence (every 3 weeks vs every 5 months). CAL Select's advantage is ads (none vs shown). On 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

LEO Dictionary is free to download; CAL Select costs $10.99 up front. LEO Dictionary sells 5 in-app purchases, starting at $7.49 per year and CAL Select sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

LEO Dictionary ships an update every 3 weeks, CAL Select every 5 months. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

Scorecard6 real differences · 4 level
LEO Dictionary versus CAL Select: the parameters behind the verdict, then further details
ParameterLEO DictionaryCAL Select
PriceFree — better$10.99
Rating4.0 (225 ratings) — better—
Positive reviews67.6% of reviews — better0.0% of reviews
Number of ratings225 — better—
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size40 MB53 MB
Age rating4+4+
DeveloperLEO GmbHColorix SA

Customer experience

LEO Dictionary

All ratings225 ratings
Positive72.4%
Neutral8.4%
Negative19.1%
Written reviews488 reviews
Positive67.6%
Neutral9.0%
Negative23.4%

CAL Select

Written reviews2 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

LEO Dictionary

Reported bugs

4 issues
  • Search function not working reliably
  • App crashes when switching between languages
  • Saved word lists not syncing across devices
  • Inconsistent performance on older devices

Requested features

5 requests
  • Offline dictionary functionality
  • Improved word list management and editing
  • Customizable user interface and themes
  • Enhanced verb conjugation and grammar tools
  • Seamless integration with language learning apps

CAL Select

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

LEO Dictionary

Subscriptions1
  • Ad-free annual subscription$7.491 Year
One-time4
  • Westermann Camden Town 5$8.95
  • Westermann Camden Town 6$8.95
  • Westermann Camden Town 7$8.95
Show 1 more
  • Westermann Camden Town 8$8.95
3 purchases

CAL Select

One-time3
  • RAL CLASSIC$1.99
  • RAL DESIGN$5.99
  • NCS®©$9.99

Questions

Is LEO Dictionary free?
LEO Dictionary is free to download, with in-app purchases available.
Is CAL Select free?
CAL Select costs $10.99, and also offers in-app purchases.
Do LEO Dictionary or CAL Select have ads?
LEO Dictionary shows ads; CAL Select does not.
Which is updated more often, LEO Dictionary or CAL Select?
LEO Dictionary ships an update every 3 weeks, and CAL Select every 5 months. Most recently, LEO Dictionary was updated on October 2, 2026 and CAL Select on September 28, 2026.

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