Comparison

Fluego vs Flash Stack

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

Head to head
About

Fluego

Master languages and vocabulary with intelligent flashcards that adapt to your learning style. Utilize spaced repetition for efficient memorization and study with a distraction-free, offline experience. Create your own study decks or choose from thousands of pre-made options.

Highlights
  • Spaced repetition learning
  • Multiple review modes
  • Custom deck creation
  • Import from CSV/camera
  • Offline functionality
  • Progress tracking
  • iCloud sync
Features
Read full description

Master any language with smart flashcards that adapt to how you learn. Fluego uses spaced repetition to show you the right cards at the right time — so you remember more and study less. No account required, no internet needed, no distractions. LEARN YOUR WAY • 6 review modes: Classic, Quiz, Letters, Typing, Match, and Memory • Flip cards, type answers, or match pairs — whatever works for you • Track your streak and watch your mastery grow 5,000+ FREE CARDS • 23 starter decks in up to 20 languages • Beginner, Intermediate, and Advanced levels • Themed decks: Food, Travel, Emotions, Sports, and many more BUILD YOUR OWN • Create custom decks with descriptions on both sides • Import from CSV or scan a page with your camera • Import photos from your library STAY ON TRACK • Daily streak with activity heatmap • Review reminders and Word of the Day notifications • Home Screen widgets for streak and daily word • Accuracy trends and session history DESIGNED FOR FOCUS • Clean, minimal interface with no ads • 12 accent color themes and dark mode • Works completely offline • Syncs across your devices with iCloud • Your data stays private — on your device and in your iCloud Whether you're preparing for an exam, learning a new language, or building vocabulary — Fluego makes every study session count. ---------------------------- Terms of Use: https://tersacore.com/fluego/terms Privacy Policy: https://tersacore.com/fluego/privacy

About

Flash Stack

Features
Read full description

Flash Stack helps you build simple flashcard decks, review what is due, and keep track of your progress without clutter. It is especially useful for GCSE revision, A Level revision, mock exam prep, and steady day-to-day study. Create custom decks for topics, formulas, essay plans, key quotes, definitions, case studies, dates, vocabulary, and revision cards for the subjects you actually study. Add cards one at a time, bulk import larger sets, or export a deck when you want to back it up or move it elsewhere. Study sessions focus on the cards that are ready for review. Reveal each answer, rate how well you remembered it, and Flash Stack schedules the next review using the SM-2 spaced repetition approach. Features: - Create unlimited custom decks - Add and edit question-and-answer cards - Bulk import cards from text, CSV, TSV, or JSON files - Export decks as JSON - Review due cards in focused study sessions - Rate cards as Again, Hard, Good, or Easy - Track review activity, retention, streaks, and upcoming workload - Set an optional daily reminder - Built with support for VoiceOver, Dynamic Type, and Reduce Motion - Clear labels, spoken summaries, and accessible study controls - Works without an account Whether you are preparing for GCSE mocks, A Level papers, class tests, or personal study goals, Flash Stack is designed for quick daily revision. Use it for science facts, maths formulas, history dates, English quotes, languages vocabulary, and other exam content you need to remember properly.

Screenshots

Fluego4 screens
Flash Stack4 screens

Verdict

The call

The clearest difference is iOS requirement: Flash Stack at 18.6 against Fluego's 26.2. On price, update cadence, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fluego ships an update every 5 days, Flash Stack every 3 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 8 level
Fluego versus Flash Stack: the parameters behind the verdict, then further details
ParameterFluegoFlash Stack
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 daysEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.218.6 — better
Further details — not scored
Size32 MB8 MB
Age rating4+4+
DeveloperPawel WiszenkoReuben Enterprises Ltd

In-app purchases

None

Fluego

No in-app purchases

None

Flash Stack

No in-app purchases

Questions

Is Fluego free?
Fluego is free to download, with no in-app purchases.
Is Flash Stack free?
Flash Stack is free to download, with no in-app purchases.
Do Fluego or Flash Stack have ads?
Neither Fluego nor Flash Stack shows ads.
Which is updated more often, Fluego or Flash Stack?
Fluego ships an update every 5 days, and Flash Stack every 3 days. Most recently, Fluego was updated on October 28, 2026 and Flash Stack on October 25, 2026.

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