Comparison

LingoDeer Plus vs Day Genius

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

Head to head
About

LingoDeer Plus

This app offers a fun, gamified approach to practicing Japanese, Korean, Spanish, French, Chinese, and German. It features 7 engaging games designed to improve specific language skills with culture-specific content relevant to proficiency exams up to B1 CEFR.

Highlights
  • 7 gamified language practice exercises
  • Culture-specific content for exams (up to B1 CEFR)
  • Professionally curated word lists (3000+ words per language)
  • Native speaker audio recordings in HD
  • Quick Review mode for weak items
  • Offline download for all content
Features
Read full description

LingoDeer Plus is a gamified practice app for language learners of Japanese, Korean, Spanish, French, Chinese and German, developed by the same team behind the popular language course app LingoDeer. It currently features 7 games that help you improve specific language skills, such as the use of fixed expressions or prepositions and more. So start practicing! The main features of LingoDeer Plus: ※ Culture specific contents that are also relevant to proficiency exams (up to B1 in CEFR) ※ 7 cute deer-themed games that will keep practicing a language a pure joy ※ Professionally curated word lists with around 3000 words for each language ※ Every single word or sentence is recorded in HD with native voice actors/actresses ※ Review weak items in Quick Review mode ※ Test out levels to skip to your current level ※ Feel supported with options to turn on or off romanisation while learning Japanese, Korean, Chinese ※ The ability to download everything to your device and play offline ~~~~ Words from the LingoDeer team ~~~~ Hi deer! To develop LingoDeer Plus, every member of our team has started learning a third (or fourth) language so that we can again put ourselves in your shoes. With the goal to eliminate painful and tedious drills, we decided to keep every session under 90 seconds and introduce a cute mission with each exercise.  To make sure the content you will practice with is practical and level appropriate, we handpicked culture-specific vocabulary and crafted sentences that are also relevant to the exams you guys are preparing for. Our mission is to help language learners like you progress efficiently and happily anywhere and anytime by using our original, pedagogically sound content in the most fun format possible.  Thank you for your continued support! PLEASE NOTE: You will need a subscription (aside from LingoDeer) in order to access all levels and features in LingoDeer Plus. LingoDeer Plus pricing: - Monthly subscription for $8.99 - Quarterly Subscription for $17.99 - Annual subscription for $35.99 (saves 50%) About subscriptions: - The above prices are for U.S. customers. Pricing in other countries may vary, and changes may be converted to your local currency depending on your country of residence. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Support: Found a bug in LingoDeer Plus? Send us a bug report in Feedback in the app or - Email: support@lingodeer.com - Support Url: https://www.facebook.com/lingodeer - Terms of Use: https://www.lingodeer.com/terms-conditions-html - Privacy Policy: https://www.lingodeer.com/privacypolicy-html

About

Day Genius

Learn to calculate the weekday for any date without a calendar or phone. This app teaches a step-by-step method with interactive drills and games to master the skill. Unlock advanced features with a one-time purchase.

Highlights
  • Step-by-step weekday calculation method
  • Interactive drills and flashcards
  • Two engaging practice games
  • Progress tracking and weak-spot identification
  • Reference tables for calculations
  • Support for historical calendar rules
Features
Read full description

July 20, 1969? Sunday. July 4, 1776? Thursday. Your birthday? Work it out in your head, no calendar, no phone. It looks like a party trick. It's a method, and Day Genius teaches it one small step at a time. HOW IT WORKS Every month has a code. Add it to the day of the month and a code for the year, then take out the sevens. What's left is the weekday. 1. Day numbers — 0 = Sunday through 6 = Saturday 2. Take out the sevens — turn any total into a day number 3. Month codes — twelve values, each with a memory hook 4. Combine & find the weekday — your first real answer 5. Year code — turn any year into its code 6. Leap-year rule — a small fix for January and February 7. Century shift — any century, not just your own 8. Full date — everything together, on real dates Master a step with three drills at 90% or better and the next one opens. The first four steps are free; a one-time purchase, not a subscription, unlocks steps 5–8. THE MONTH CODES YOU ALREADY KNOW Learned month codes as January = 6? Keep them. The Month codes step offers the classic list (January = 0, the default) or the alternate list, every code one lower, with twelve memory hooks of its own. Year codes come matched, and every lesson, check, flashcard, drill, game, Reference table and widget follows your choice. Switch anytime. THREE WAYS TO PRACTICE Check yourself — untimed questions that show the reasoning, let you pick again, and record nothing. Flashcards — a deck for every step. Tap to flip, retire what sticks, and the rest come back around. Full date adds Famous dates: twelve dates from 1776 to 2001, with what happened on the back. Drills — timed and recorded, with no time limit: the path to mastery. DRILLS THAT FIND YOUR WEAK SPOTS Day Genius notices the months, years and centuries you miss or answer slowly, and mixes them back into later drills. Progress shows mastery, streak, speed trend and skill breakdown, plus a one-tap weak-spot drill and an optional daily reminder. TWO GAMES Speed Round — ten random dates against the clock, with a full breakdown afterward. Date Drop — dates fall, and you drag each into its weekday bucket before it lands. Catch them early for bonus points and in a row for combos. CORRECT BACK TO YEAR 1 Day Genius follows the calendar Britain and its colonies actually used. They skipped September 3–13, 1752, and before that every fourth year was a leap year, century years included. The Before 1752 bonus lesson shows how to work out older dates; countries that switched at other times can differ. An independent algorithm cross-checks the engine across thousands of dates. THE REFERENCE Every table behind the method, each opening as you master its step; tables for steps 5–8 also need the unlock. Check any date is open from the first launch: pick a date and it names the weekday. Unlock and master the Year code step, and it shows the full calculation too. Pick the 1900s or the 2000s as your home century, and the tables, examples and drills follow it. WIDGETS Date of the Day hands you a fresh date to solve, Code Cards keeps a code in front of you, and Practice Streak keeps the chain going. The last two fit the Lock Screen too. BUILT TO BE READ AND HEARD VoiceOver support throughout, and Dynamic Type including the accessibility sizes. With VoiceOver or Reduce Motion on, Date Drop switches to a calm, button-based mode: no falling, no dragging. FREE TO START, ONE PURCHASE FOR THE REST The first four steps are free, decks and checks included, and they're enough to find a weekday once you're given the year code. A one-time purchase, not a subscription, unlocks steps 5–8 and their decks, Famous dates included. Both games, the Before 1752 bonus lesson and the rest of the Reference open with it as you master the steps they use. PRIVATE BY DESIGN No account. No ads. No personal data collected. Your progress stays on your device, and purchases are handled by Apple.

Screenshots

LingoDeer Plus4 screens
Day Genius4 screens

Verdict

The call

The clearest difference is monetization model: Day Genius at free with in-app purchases against LingoDeer Plus's subscription. Day Genius also leads on review sentiment (100% vs 81%) and update cadence (every 2 weeks vs monthly). LingoDeer Plus's advantage is ratings volume (3.3K vs 1) and iOS requirement (10.0 vs 26.0). On price, rating, ads and in-app purchases 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. LingoDeer Plus sells 4 in-app purchases, starting at $8.99 per month and Day Genius sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for LingoDeer Plus against 5.0 for Day Genius. That said, the two scores are not equally well evidenced: LingoDeer Plus has 3.3K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 81% of LingoDeer Plus's written reviews are positive against 100% of Day Genius's.

UpkeepUpdate frequency

LingoDeer Plus ships an update monthly, Day Genius every 2 weeks. The most recent releases landed on October 18, 2026 and September 28, 2026 respectively.

Scorecard5 real differences · 5 level
LingoDeer Plus versus Day Genius: the parameters behind the verdict, then further details
ParameterLingoDeer PlusDay Genius
PriceFreeFree
Rating4.9 (3.3K ratings)5.0 (1 ratings) — better
Positive reviews80.9% of reviews100.0% of reviews — better
Number of ratings3.3K — better1
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better26.0
Further details — not scored
Size121 MB6 MB
Age rating4+4+
DeveloperLingoDeer Co, Ltd.Craig Ricks

Customer experience

LingoDeer Plus

All ratings3,337 ratings
Positive97.3%
Neutral1.6%
Negative1.1%
Written reviews283 reviews
Positive80.9%
Neutral7.8%
Negative11.3%

Day Genius

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

LingoDeer Plus

Reported bugs

2 issues
  • Frequent crashes and login issues reported by some users
  • Offline mode not functioning properly for some users

Requested features

4 requests
  • Add more languages, especially Arabic and Latin American Spanish
  • Introduce alphabet/character learning games for languages like Japanese and Chinese
  • Allow users to customize font sizes for better readability
  • Improve integration between LingoDeer and LingoDeer+ to provide a more seamless learning experience

Day Genius

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

LingoDeer Plus

Subscriptions3
  • Monthly subscription$8.991 Month
  • Quarterly subscription$19.993 Months
  • Annual subscription$53.991 Year
One-time1
  • Lifetime membership$99.99
1 purchases

Day Genius

One-time1
  • Full Method$3.99

Questions

Is LingoDeer Plus free?
LingoDeer Plus is free to download, with in-app purchases available.
Is Day Genius free?
Day Genius is free to download, with in-app purchases available.
Which has better reviews, LingoDeer Plus or Day Genius?
Day Genius is rated higher. LingoDeer Plus averages 4.9 out of 5 from 3.3K ratings, while Day Genius averages 5.0 from 1 ratings.
Do LingoDeer Plus or Day Genius have ads?
Neither LingoDeer Plus nor Day Genius shows ads.
Which is updated more often, LingoDeer Plus or Day Genius?
LingoDeer Plus ships an update monthly, and Day Genius every 2 weeks. Most recently, LingoDeer Plus was updated on October 18, 2026 and Day Genius on September 28, 2026.

Other comparisons