Comparison

Flashcards by NKO vs FlashSRS

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

FlashSRS

Features
Read full description

Study vocabulary and prepare for exams with offline flashcards that schedule your next review. Create your own cards, import supported .apkg decks or explore ready-to-study Pro packs. READY-TO-STUDY PACKS WITH PRO • Vocabulary in 9 languages: English, French, Mandarin Chinese, Spanish, German, Japanese, Korean, Italian and Portuguese. • Choose 1,000, 2,000, 3,000 or 5,000-word sets. Smaller sets are subsets of the larger ones. Meanings are in Vietnamese or English. • Science: periodic table. • Geography: country flags and capitals. • Medical study: anatomy, physiology, pathology, pharmacology, microbiology and immunology, biochemistry and genetics. A DAILY STUDY HABIT Try to recall, reveal the answer, then rate how well you remembered. Spaced repetition schedules another review. Build a streak, set a daily goal, use optional reminders and check your progress in a study calendar. Add a Home Screen widget or review with the Apple Watch companion. YOUR COLLECTION, ON YOUR DEVICE Create and edit basic or cloze cards. Search your collection, import and export supported .apkg files, and make local backups. Study offline without an account. Remote server synchronization is not offered in this version. TRY FLASHSRS, THEN CHOOSE PRO The free allowance covers a total of 30 distinct personal or sample cards; it does not reset each day. Pro unlocks continued study, built-in packs, advanced deck scheduling and detailed statistics. Monthly and Lifetime include the same Pro features. Choose a monthly auto-renewable subscription or a one-time Lifetime purchase. Eligible monthly subscribers may receive the trial displayed by Apple. Local prices, trial eligibility and renewal terms are shown before purchase. Restore Purchases is available in the app. Support: https://mathhero.space/support/flashsrs/ Privacy Policy: https://mathhero.space/legal/flashsrs/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Flashcards by NKO4 screens
FlashSRS4 screens

Verdict

The call

The clearest difference is update cadence: FlashSRS at every 9 days against Flashcards by NKO's every 4 weeks. On price, ads, 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. Flashcards by NKO sells 13 in-app purchases, starting at $1.99 per month and FlashSRS sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Flashcards by NKO ships an update every 4 weeks, FlashSRS every 9 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Flashcards by NKO versus FlashSRS: the parameters behind the verdict, then further details
ParameterFlashcards by NKOFlashSRS
PriceFreeFree
Rating4.9 (2.1K ratings) — better—
Positive reviews93.8% of reviews—
Number of ratings2.1K — better—
Update frequencyEvery 4 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS1717.0
Further details — not scored
Size84 MB10 MB
Age rating4+4+
DeveloperNKO Ventures, LLCManh Nguyen

In-app purchases

13 purchases

Flashcards by NKO

Subscriptions2
  • Individual Edition1 Month trial$1.991 Month
  • Individual Edition$14.991 Year
One-time11
  • AbstractFree
  • CatsFree
  • SpringFree
Show 8 more
  • Winter$0.99
  • Vintage$2.99
  • Back to School$2.99
  • Server Space$19.99
  • Teacher Pro 100 (for 3 months)$39.99
  • Individual Edition$99.99
  • Teacher Pro 100$99.99
  • Teacher Pro$199.99
2 purchases

FlashSRS

Subscriptions1
  • FlashSRS Pro Monthly3 Days trial$1.991 Month
One-time1
  • FlashSRS Pro Lifetime$9.99

Questions

Is Flashcards by NKO free?
Flashcards by NKO is free to download, with in-app purchases available.
Is FlashSRS free?
FlashSRS is free to download, with in-app purchases available.
Do Flashcards by NKO or FlashSRS have ads?
Neither Flashcards by NKO nor FlashSRS shows ads.
Which is updated more often, Flashcards by NKO or FlashSRS?
Flashcards by NKO ships an update every 4 weeks, and FlashSRS every 9 days. Most recently, Flashcards by NKO was updated on October 29, 2026 and FlashSRS on October 31, 2026.

Other comparisons