Comparison

MioCards vs RoxyPenguin Vocabulary Builder

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

Head to head
About

MioCards

Master foreign languages with intelligent flashcards. This app uses spaced repetition to help you remember vocabulary, offers pre-made sets, and allows custom creation using AI or text input. Study offline and track your progress with daily reminders.

Highlights
  • Spaced repetition algorithm (FSRS)
  • Pre-made and AI-generated sets
  • Import words from text or links
  • AI-assisted card creation
  • Offline study mode
  • Audio pronunciation
  • Progress tracking
Features
Read full description

MioCards helps you learn foreign words and remember them by heart. Pick a ready-made set or create your own for any language pair, then study with flashcards. The app schedules each card with FSRS, a modern spaced-repetition algorithm, so you review a word exactly when you are about to forget it. WHAT YOU GET • Ready-made sets – 100 sets per language for Spanish, German and Dutch, from A1 to C1, 100 words each with example sentences. Add a whole set in one tap. • Sets for any language pair – pick the language you learn and the language you know. • Quick manual cards – a word, a translation, done. • AI-generated sets – describe a topic and get a ready set of cards to review and edit before saving. Your topic is sent for generation only after you agree to it. • New words from any text – paste text or a link, or take a photo, and MioCards finds the words you don't know yet and builds a set. Share text or a link to MioCards from any other app. • Fill a card with AI – type a word, pick its meaning, and AI adds the translation and an example. • Spaced repetition – FSRS picks what to review today; answer Repeat, Hard, Normal or Easy. • Both directions – study word → translation and translation → word. • Audio – hear the pronunciation of every word, on one or both sides of the card. • Daily reminder – a notification at the time you choose. • Progress – streaks and a review calendar. • Archive – hide sets and cards you no longer need, restore them any time. • iPhone and iPad – sets and cards side by side on iPad. • Works offline – everything is saved on your device first and synced to your account when you are online. FREE AND PRO MioCards is free with up to 500 active cards and a monthly allowance of AI cards. MioCards Pro (monthly or yearly, with a 7-day free trial on the yearly plan) adds more AI cards, HD voice for the cards you type and an unlimited library. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage them in App Store settings. PRIVACY MioCards creates an anonymous account for you; no e-mail or password is required. You can delete the account and all its data from Settings at any time. Download MioCards and add your first set today. Privacy policy: https://miocards.online/privacy/ Terms of Use: https://miocards.online/terms/ Support: https://miocards.online/support/

About

RoxyPenguin Vocabulary Builder

Learn and retain hundreds of words effortlessly through fun mobile games. Add custom words, play engaging levels, and track your progress with intelligent learning algorithms. Enjoy a personalized dictionary and pronunciation guides.

Highlights
  • Add custom words and translations
  • Play fun mobile games with unlockable levels
  • Learn words in the background via algorithms
  • Track daily and long-term progress
  • Support for over 50 languages
  • Text-to-Voice for pronunciation
  • Data Backup
Features
Read full description

If you want to learn and remember forever hundreds of words without applying any mental effort, then download RoxyPenguin now! Our way of memorizing words is extremely efficient and fun. Try it yourself! HOW DOES IT WORK? 1. Add words to your dictionary easily and effortlessly: - choose from suggested words - choose from suggested translations or - add custom words - add custom translations 2. Play fun mobile games: - real mobile games with beautiful graphics and great gameplay - unlock new levels by learning 3. Learn your words while you play: - just have fun while playing the game - learning happens in the background: algorithms make sure you learn new words efficiently and repeat what you have already learned only when it's needed learned when it's needed - stick with learning for a longer period (because of the addictiveness of the game), thus, learn more 4. Track your progress: - see your daily goals and daily progress - track your progress with time ---------- ALL FEATURES: - Up to 50 supported languages (as your mother tongue and\or language to learn): English, Spanish, French, German, Portuguese, Italian, Arabic, Belarusian, Bulgarian, Croatian, Catalan, Czech, Danish, Dutch, Esperanto, Estonian, Persian, Finnish, Greek, Hebrew, Hungarian, Hindi, Icelandic, Indonesian, Irish (Gaelic), Latin, Latvian, Lithuanian, Macedonian, Norwegian, Polish, Romanian, Russian, Serbian, Slovak, Slovenian, Swedish, Swahili, Tagalog(Filipino/Pilipino), Turkish, Ukrainian, Vietnamese, Welsh, Japanese, Korean, Malay, Thai, Chinese, Kazakh, Azerbaijani. - Fun mobile game - 20+ exciting game levels - Personal dictionary - Custom translations - New words suggestions - Beautiful and informative dashboard - Daily reminders of words you're learning - Widget with quick access to the main features - Configurable comprehensive learning algorithms - Text-to-Voice - to hear the correct pronunciation - Multiple control modes within the game - Cool stickers with idioms about languages for iMessage - Data Backup ---------- The BASIC version is ABSOLUTELY FREE! But, it HAS the following limitations (which are absolutely enough for your daily learning routine): - only 15 new words suggestions per day, per dictionary - maximum of 5 minutes of learning (playing games) per day - only 1 game theme The FREE version HAS NO limitations on: - number of dictionaries you can add - number of words you can add and learn In a FREE version, you can watch ADS to temporarily lift those limitations. ---------- The PREMIUM version offers a much more efficient and enjoyable learning experience. It has all the features available in the Free version but, also, has the following advantages: - 1 Basic + 20 Premium game levels - Unlimited practice (playing game) time - Unlimited new words suggestions - Better and faster translations - Data backup - Constant updates --------- FREE PREMIUM TRIAL: - each new user gets 3 days of free Premium Trial period ---------- To get the PREMIUM version you have to buy a PREMIUM SUBSCRIPTION. Payment information: Available subscriptions: - 1 Month - 3 Months - 12 Months - Payment will be charged to your 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 - No cancellation of the current subscription is allowed during the active subscription period --------- You can reach us here: Website: http://roxypenguin.com/ Email: roxypenguinapp@gmail.com Privacy Policy: http://roxypenguin.com/terms/privacy_policy.html Terms of Use: http://roxypenguin.com/terms/terms_and_conditions.html

Screenshots

MioCards4 screens
RoxyPenguin Vocabulary Builder4 screens

Verdict

The call

The clearest difference is review sentiment: RoxyPenguin Vocabulary Builder at 76% against MioCards's 33%. RoxyPenguin Vocabulary Builder also leads on ratings volume (4 vs 1). MioCards's advantage is ads (none vs shown) and rating (5.0 vs 4.8). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MioCards sells 6 in-app purchases, starting at $5.99 per month and RoxyPenguin Vocabulary Builder sells 9 in-app purchases, starting at $3.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

MioCards holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 33% of MioCards's written reviews are positive against 76% of RoxyPenguin Vocabulary Builder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

MioCards ships an update monthly, RoxyPenguin Vocabulary Builder every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
MioCards versus RoxyPenguin Vocabulary Builder: the parameters behind the verdict, then further details
ParameterMioCardsRoxyPenguin Vocabulary Builder
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (4 ratings)
Positive reviews33.3% of reviews76.5% of reviews — better
Number of ratings14 — better
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better16.1
Further details — not scored
Size97 MB156 MB
Age rating4+4+
DeveloperSmirnov YurySerhiy Krynytskyy

Customer experience

MioCards

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive33.3%
Neutral9.5%
Negative57.1%

RoxyPenguin Vocabulary Builder

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews17 reviews
Positive76.5%
Neutral11.8%
Negative11.8%

In-app purchases

6 purchases

MioCards

Subscriptions3
  • MioCards Pro Monthly1 Month trial$5.991 Month
  • MioCards Pro Monthly$5.991 Month
  • MioCards Pro Yearly7 Days trial$39.991 Year
One-time3
  • 100 AI cards$0.99
  • 300 AI cards$2.99
  • 1,000 AI cards$6.99
9 purchases

RoxyPenguin Vocabulary Builder

Subscriptions9
  • Premium 3 Months Subscription$3.993 Months
  • Premium Monthly Subscription7 Days trial$4.991 Month
  • Premium 3 Months Subscription$4.993 Months
Show 6 more
  • Premium 6 Months Subscription$6.496 Months
  • Premium Monthly Subscription$6.991 Month
  • Premium 3 Months Subscription7 Days trial$9.993 Months
  • Premium Yearly Subscription$9.991 Year
  • Premium 6 Months Subscription$17.996 Months
  • Premium Yearly Subscription7 Days trial$29.991 Year

Questions

Is MioCards free?
MioCards is free to download, with in-app purchases available.
Is RoxyPenguin Vocabulary Builder free?
RoxyPenguin Vocabulary Builder is free to download, with in-app purchases available.
Which has better reviews, MioCards or RoxyPenguin Vocabulary Builder?
MioCards is rated higher. MioCards averages 5.0 out of 5 from 1 ratings, while RoxyPenguin Vocabulary Builder averages 4.8 from 4 ratings.
Do MioCards or RoxyPenguin Vocabulary Builder have ads?
RoxyPenguin Vocabulary Builder shows ads; MioCards does not.
Which is updated more often, MioCards or RoxyPenguin Vocabulary Builder?
MioCards ships an update monthly, and RoxyPenguin Vocabulary Builder every 2 months. Most recently, MioCards was updated on November 6, 2026 and RoxyPenguin Vocabulary Builder on November 2, 2026.

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