Comparison

Poly Flashcards vs Understood In Spanish

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

Head to head
About

Poly Flashcards

Features
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Remember more. Use what you learn. Turn your notes into flashcards, your audio into useful vocabulary, and everyday conversations into personal language practice. Poly brings creation, listening, speaking and spaced repetition together in one focused app. Learn a language, prepare for an exam, build professional knowledge or explore a new interest. Start with your own material and make it yours. A POWERFUL CORE, FREE Create unlimited decks and flashcards. Organize them into folders, edit your cards, import existing material and study with Smart Review. No Poly account or subscription is required for the core experience. REMEMBER MORE, EVERY DAY Smart Review uses FSRS spaced repetition to choose what needs attention next. Study one deck, a folder or your whole library. Focus on due cards, difficult material or new cards, and use Catch-Up when your backlog grows. Undo a mistaken rating and pause cards that need a rethink. TURN NOTES AND PICTURES INTO CARDS Paste structured notes or scan a page, then check and edit the cards before saving. Create two-way cards and fill-in-the-blank questions. Hide labels on diagrams and photos for visual recall. Keep useful images, audio and language details with your cards. LEARN FROM WHAT YOU HEAR Import an audio lesson and add or create a timed transcript. Jump to a sentence, repeat a difficult line and look up words in context. Save useful words or complete sentences as flashcards with their original audio clips. Listen, record and replay yourself with shadowing practice. PRACTISE EVERY SIDE OF A LANGUAGE Understand, Recall, Listen, Dictation, Type and Speak train different skills from the same material. Check typed answers, choose how strictly to handle accents and compare spoken answers with recognized text. Add readings, pronunciation and grammar to support your learning. MAKE LANGUAGE PERSONAL Build a Language Island: a bilingual script for introducing yourself, ordering food or talking about your life. Write or import sentence pairs, choose recall pauses and preview the first two pairs with device voices. AI+ creates the complete professional audio for repeated listening and practice. CREATE WITH OPTIONAL AI+ Build editable flashcards from a focused prompt, or enrich a word with examples, grammar and natural phrases. Explore due-word conversations, optional sound coaching and Card Doctor suggestions for troublesome cards. AI+ also includes professional speech and all Pro features. Check AI-generated facts and translations before studying. BRING YOUR LEARNING WITH YOU Import and export supported Anki packages, CSV and Quizlet text. Keep a complete Poly backup. Study saved material offline, use iPad handwriting and larger layouts, or transfer supported short text cards and audio to Apple Watch for quick sessions away from your phone. SEE YOUR PROGRESS GROW Follow your reviews, streaks and language activity. Build a routine with reminders and use your progress to choose what to practise next. Pro Lifetime adds iCloud sync and advanced retention, mastery and workload insights. CHOOSE WHAT WORKS FOR YOU The core app is free. Pro is an optional lifetime purchase. AI+ is an optional monthly or annual subscription with usage allowances. New AI requests and online downloads require a connection; speech recognition availability varies by device and language. Privacy Policy: https://getpoly.dev/privacy Terms: https://getpoly.dev/terms

About

Understood In Spanish

Features
Read full description

Understood In Spanish is a complete Spanish course, A1 to C2, with real grammar explanations, speaking practice and typed answers. Every lesson is free, and every explanation is in your own language. EVERY LESSON IS FREE • 280 lessons across 70 units, from complete beginner (A1) to C2 • No hearts, no energy bars, no lessons locked behind a payment • The free version shows ads: a banner on the Learn and Review screens, and now and then a full-screen ad after you finish a lesson, review, quiz, drill, story, conversation or dialogue. Never during one. LEARN THROUGH YOUR OWN LANGUAGE Explanations, hints and translations are in the language you choose: 33 languages, including English, Chinese, Hindi, Arabic, Portuguese, Russian, Japanese, Korean, French and German. The Spanish you learn is the same in every language. REAL GRAMMAR, EXPLAINED • A plain-language explanation opens every lesson: why the words behave that way, not just what to tap • Ser vs estar, the subjunctive, por vs para: the hard things get the space they need • A searchable grammar library you can come back to any time • Read aloud: hear an explanation in your language, on phones that have a voice for it SPEAK IT, TYPE IT, HEAR IT • Speaking exercises use your phone's speech recognition and show you what they heard. They are always optional. • Typed answers, not only multiple choice, with a keyboard bar for accents • Every Spanish word and sentence is spoken by your phone's built-in voice PRACTICE THAT STICKS • Smart Review brings each word back just before you would forget it (spaced repetition based on SM-2) • Fix Your Misses turns the exercises you got wrong into a short session • Daily Workout: up to twelve items, once a day, from your due words and recent mistakes • 12 dialogues: two people talk, each in their own voice; tap any word for its meaning, then answer questions • 24 graded stories: tap any word for its meaning and audio • 18 conversations that correct you and explain why • Conjugation Gym: 64 verbs, seven tenses, drills and Fill the chart • Over 1,200 words and phrases • Flashcards for every unit, plus cards and quizzes you build yourself • A 164-phrase phrasebook for travel, food, work and small talk WORKS OFFLINE The whole course ships inside the app. No account, no sign-up. Lessons, stories and review work without a connection. Audio needs a Spanish voice on your phone, and speaking practice works offline only where your phone can recognize Spanish on the device. YOUR PROGRESS STAYS ON YOUR PHONE Streaks, XP, a 14-day chart and an achievement wall. There is no account and no server of ours: your progress is stored on your phone, and we never receive it. Export a backup file and import it on another phone or tablet, iPhone or Android; importing merges and never deletes. PRIVACY The app goes online only for ads in the free version (Google AdMob), for purchases through Apple and, on some phones, for speech recognition. The app never records or keeps your voice; depending on your phone, Apple may process the audio to recognize it. HOW THE COURSE IS MADE The course was written by AI and checked with automated tests and AI review, not by a human linguist. Translations other than English are machine-generated. PRO (OPTIONAL SUBSCRIPTION) Pro removes the ads. Nothing else is locked behind it: every lesson is free for everyone. • Pro Monthly: $0.99 a month • Pro Yearly: $5.99 a year Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically at the same price unless you cancel at least 24 hours before the end of the current period. Manage or cancel anytime in Settings › your name › Subscriptions. Prices shown are US pricing; your local price appears in the app. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Poly Flashcards4 screens
Understood In Spanish4 screens

Verdict

The call

The clearest difference is ads: Poly Flashcards at none against Understood In Spanish's shown. On price, update cadence, 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

Both are free to download. Poly Flashcards sells 3 in-app purchases, starting at $4.99 per month and Understood In Spanish sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Poly Flashcards ships an update every 5 days, Understood In Spanish weekly. Both last shipped on October 31, 2026.

Scorecard1 real difference · 7 level
Poly Flashcards versus Understood In Spanish: the parameters behind the verdict, then further details
ParameterPoly FlashcardsUnderstood In Spanish
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 days — betterWeekly
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size26 MB99 MB
Age rating4+4+
DeveloperColin KellyOlivia Renee Studio, LLC

In-app purchases

3 purchases

Poly Flashcards

Subscriptions2
  • Poly AI+ Monthly$4.991 Month
  • Poly AI+ Annual$44.991 Year
One-time1
  • Poly Pro Lifetime$3.99
2 purchases

Understood In Spanish

Subscriptions2
  • Pro Monthly$0.991 Month
  • Pro Yearly$5.991 Year

Questions

Is Poly Flashcards free?
Poly Flashcards is free to download, with in-app purchases available.
Is Understood In Spanish free?
Understood In Spanish is free to download, with in-app purchases available.
Do Poly Flashcards or Understood In Spanish have ads?
Understood In Spanish shows ads; Poly Flashcards does not.
Which is updated more often, Poly Flashcards or Understood In Spanish?
Poly Flashcards ships an update every 5 days, and Understood In Spanish weekly. Most recently, Poly Flashcards was updated on October 31, 2026 and Understood In Spanish on October 31, 2026.

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