Comparison

Flashcards by NKO vs Audio Flash

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

Head to head
About

Flashcards by NKO

Create and share rich flashcards with images, or download millions from a vast library. Engage with study games and a Spaced Repetition System to enhance learning and track progress.

Highlights
  • Create rich text flashcards with images
  • Download millions of pre-made flashcards
  • Engaging study and testing games
  • Spaced Repetition System (SRS)
  • Class management tools for teachers
  • Share decks via folders, email, or iTunes
  • Offline text-to-speech support
Features
Read full description

Flashcards by NKO is an engaging educational solution for students and teachers worldwide. Looking for a powerful and easy-to-use flashcards app to help you study? This app allows you to create rich text formatted flashcards with pictures and download millions of flashcards on hundreds of subjects created by both experts and novices. Matching, True/False, Memory, Spelling, Q-Battle, Word Search, Flow, Flappy Dog, Dig It Up, 2048, Ninja, Bingo, Q-Battle LMP, Blocks, and Letters games add more fun to your studying. Don't be surprised to find yourself playing games, getting badges and beating highscores of your friends or classmates rather than simply flipping flash cards... :) Not enough? Loci will turn your cards into a 3D Memory Palace that exploits a memory technique of ancient Greeks and memory champions. Moreover you will immerse ing an augment reality realm in Defender game All tools and games are connected to a sophisticated Spaced Repetition System (SRS) that tracks your progress and keep you organized. - 2.5 millions downloads - used in classrooms and schools worldwide. FROM TEACHERS: "I saw a big improvement in the most recent test scores which, I believe, can be partially attributed to their use of the Flashcards app." "everything you ever wanted to do with flashcards and then some. Supports individualized and differentiated learning in the classroom." "I'm a high school English teacher who loves your app! I kept seeing my students using it, and I checked the app store a couple of times looking for it. I finally took a good look, and I realized they were creating fabulous decks beyond what I was seeing in the bare apps available. The features of your app are rich and so intuitive!" APP FEATURES - Create your own flash cards with rich text formatting and images - Download millions of flashcards made by other users - Organize your cards into folders - Share your decks with friends using shared (automatically synchronized) folders, email or iTunes. - Keep track of your progress for each deck and each card - Spaced Repetition System - Manual and Slide show modes - Linear/Adaptive/Shuffle mode to enhance retention - 5 tools (Review, Explore, Quiz, Listen, and Collage). - 16 studying/testing games (Matching, Memory, True/False, Spelling, Words, Q-Battle, Flow, Flappy, Dig It Up, Ninja, 2048, Bingo, Q-Battle MP, Blocks, Letters, Loci) - 6 built-in keyboards (rich text formatting, fast edit, maths symbols, chemistry symbols, Fonts, and Greek letters) and support of custom keyboards. - Combine or split decks - Sorting flashcards - Import decks in txt, csv, or tsv formats - a drawing tool - 36 built-in text-to-speech voices that work offline + 40+ additional voices from iSpeech. - color coding - no distracting ads FOR TEACHERS: - the only flashcard app with a full-fledged class management system - classes, leaderboards, a lot of games! - students' folders for personalized learning - teacher's messages - statistics in detail: who reviewed what, when, for how long, what tools and games are used. Printable reports. - multiplayer games --------------------- In addition to the life-time Individual Edition, Teacher Pro, and Educational Editions, the application also offers Individual Edition auto-renewal Subscriptions for 1 month ($1.99/month in the U.S. App Store) and 1 year ($9.99/year in the U.S. App Store). Payment will be charged to iTunes Account at confirmation of purchase. Auto-renewal Subscriptions automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. The 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. You can read about our Privacy Policy (http://nkoapps.com/privacy) and Terms of Use (https://nkoapps.com/terms_of_use) on our website.

About

Audio Flash

This app offers a hands-free, audio-only flashcard experience for efficient studying. It supports Anki imports, spaced repetition, and voice recognition for answering. Ideal for learning languages, medical terms, or vocabulary without screen time.

Highlights
  • Hands-free audio flashcards
  • Anki deck import
  • Spaced repetition (FSRS)
  • Voice recognition for answers
  • Text-to-speech for flashcards
  • Screen-free learning
Features
Read full description

Audio Flash transforms you studying with hands-free, audio-only flashcards. Study while walking, exercising, or doing household tasks - no screen required. KEY FEATURES: Anki Import - Convert existing Anki decks instantly Spaced Repetition - FSRS algorithm optimizes your review schedule Voice Recognition - Speak your answers for instant feedback Text-to-Speech - Natural audio for all your flashcards Screen-Free Learning - Study anywhere, anytime Perfect for language learning, medical studies, vocabulary building, and any subject where you want to maximize study time without eye strain. Whether you're taking a walk, at the gym, or doing chores, Audio Flash lets you learn continuously. Transform everyday activities into productive study sessions with audio flashcards that work the way your brain does. Enjoy studying your first deck for free. Upgrade to the Essential plan to study up to 5 decks on your device. Upgrade to Unlimited to enjoy endless studying. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Flashcards by NKO4 screens
Audio Flash4 screens

Verdict

The call

The clearest difference is ratings volume: Flashcards by NKO at 2.1K against Audio Flash's 8. Audio Flash's advantage is update cadence (every 10 days vs every 4 weeks). On price, rating, review sentiment and ads 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. Flashcards by NKO sells 10 in-app purchases, starting at $1.99 per month and Audio Flash sells 2 in-app purchases, starting at $0.99 per month. 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 Flashcards by NKO against 5.0 for Audio Flash. That said, the two scores are not equally well evidenced: Flashcards by NKO has 2.1K ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 94% of Flashcards by NKO's written reviews are positive against 100% of Audio Flash's.

UpkeepUpdate frequency

Flashcards by NKO ships an update every 4 weeks, Audio Flash every 10 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Flashcards by NKO versus Audio Flash: the parameters behind the verdict, then further details
ParameterFlashcards by NKOAudio Flash
PriceFreeFree
Rating4.9 (2.1K ratings)5.0 (8 ratings) — better
Positive reviews93.8% of reviews100.0% of reviews — better
Number of ratings2.1K — better8
Update frequencyEvery 4 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17 — better18.0
Further details — not scored
Size84 MB5 MB
Age rating4+4+
DeveloperNKO Ventures, LLCTim Cronshaw

Customer experience

Flashcards by NKO

All ratings2,039 ratings
Positive96.7%
Neutral1.2%
Negative2.1%
Written reviews341 reviews
Positive93.8%
Neutral2.1%
Negative4.1%

Audio Flash

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Flashcards by NKO

Subscriptions2
  • Individual Edition1 Month trial$1.991 Month
  • Individual Edition$14.991 Year
One-time8
  • AbstractFree
  • CatsFree
  • SpringFree
Show 5 more
  • Winter$0.99
  • Vintage$2.99
  • Back to School$2.99
  • Individual Edition$99.99
  • Teacher Pro 100$99.99
2 purchases

Audio Flash

Subscriptions2
  • Essential Access$0.991 Month
  • Unlimited Access$1.991 Month

Questions

Is Flashcards by NKO free?
Flashcards by NKO is free to download, with in-app purchases available.
Is Audio Flash free?
Audio Flash is free to download, with in-app purchases available.
Which has better reviews, Flashcards by NKO or Audio Flash?
Audio Flash is rated higher. Flashcards by NKO averages 4.9 out of 5 from 2.1K ratings, while Audio Flash averages 5.0 from 8 ratings.
Do Flashcards by NKO or Audio Flash have ads?
Neither Flashcards by NKO nor Audio Flash shows ads.
Which is updated more often, Flashcards by NKO or Audio Flash?
Flashcards by NKO ships an update every 4 weeks, and Audio Flash every 10 days. Most recently, Flashcards by NKO was updated on November 1, 2026 and Audio Flash on October 30, 2026.

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