Comparison

Space Decks vs GG Flash

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

Head to head
About

Space Decks

This app uses spaced repetition to help you memorize information for the long term. It supports importing existing flashcard decks and offers a clean, distraction-free study interface with full offline capabilities.

Highlights
  • Spaced repetition scheduling
  • Import .apkg flashcard decks
  • Supports basic, reversed, and cloze cards
  • Native audio, image, and video support
  • Clean, distraction-free interface
  • Full offline support
  • Dark mode support
Features
Read full description

Space Decks is a focused spaced-repetition flashcard app for iOS, built for learners who care about long-term retention and a clean studying experience. It is designed to feel simple on the surface while offering deep compatibility with professional-grade flashcard decks. • Spaced repetition scheduling designed for efficient memory reinforcement • Import full .apkg flashcard decks used by popular desktop tools • Cards render exactly as defined by their original templates • Supports basic cards, reversed cards, and cloze deletions • Conditional fields and advanced template logic are fully respected • Type-in-the-answer cards work as expected • Deck-specific styling and layouts are preserved • Native support for audio, images, and video • Automatic media playback during reviews • Sequential audio playback for language and listening decks • Replay and control media without leaving the study flow • Clean, distraction-free study interface • Familiar four-button grading system • Smooth transitions and fast card loading • Full offline support • Dark mode support • Older cards remain fully supported • Imported decks and manually created cards work together seamlessly • Safe data model that evolves without breaking existing collections • No accounts required • No tracking or analytics • No advertisements • All data stays on your device Space Decks is built by an independent developer and actively maintained with a strong focus on correctness, performance, and learning science. Future updates are planned to include mathematical notation support, advanced scheduling options, filtered decks, and optional syncing features. Space Decks is for learners who want a serious study tool that stays out of the way and lets the learning happen.

About

GG Flash

Features
Read full description

THE ANKI EXPERIENCE — FREE FOR IOS — IMPORT ANY ANKI DECKS The flashcard app Anki users wish Anki was. Beautiful. iOS-native. Built on the same spaced repetition science used by med students, polyglots, and Ivy League grinders to remember 10× longer. • Import any .apkg file in seconds — your existing Anki decks just work • Browse AnkiWeb's shared library directly in the app • 200,000+ ready-made decks: languages, medicine, law, kanji, history, code SPACED REPETITION THAT ACTUALLY WORKS • Again · Hard · Good · Easy — proven scheduling • Watch your retention climb to 90%+ • Card maturity tracking: New → Learning → Young → Mature • Forget nothing. Ever. BUILT FOR THE WAY YOUR BRAIN WORKS • Audio playback, phonetics, images, example sentences • Search, filter, browse every card you own • Light, dark, system themes — beautiful at 2am • Bury siblings, daily limits, intelligent due queue STREAKS THAT MAKE STUDYING UNSKIPPABLE • 30-day progress chart, cards/day average • Personal best streak tracking • Daily goal slider — 30 cards to 500 • The streak you don't want to break WHO USES GG FLASH • Med students prepping USMLE, MCAT • Polyglots learning Japanese, Mandarin, Spanish • Law students drilling cases • Anyone tired of clunky 2007 interfaces FREE. FULLY UNLOCKED. NO SUBSCRIPTION. Every feature included. No trial, no upgrade, no catch. Built by a learner, for learners who refuse to forget. Stop cramming. Start remembering. TERMS & PRIVACY • Privacy Policy: https://ginesga.github.io/ggflash-site/privacy.html • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Space Decks4 screens
GG Flash4 screens

Verdict

The call

The clearest difference is update cadence: Space Decks at every 5 days against GG Flash's every 2 months. Space Decks also leads on iOS requirement (17.6 vs 26.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Space Decks ships an update every 5 days, GG Flash every 2 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Space Decks versus GG Flash: the parameters behind the verdict, then further details
ParameterSpace DecksGG Flash
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.6 — better26.0
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperDor PascalGINES GARCIA LOPEZ

In-app purchases

None

Space Decks

No in-app purchases

None

GG Flash

No in-app purchases

Questions

Is Space Decks free?
Space Decks is free to download, with no in-app purchases.
Is GG Flash free?
GG Flash is free to download, with no in-app purchases.
Do Space Decks or GG Flash have ads?
Neither Space Decks nor GG Flash shows ads.
Which is updated more often, Space Decks or GG Flash?
Space Decks ships an update every 5 days, and GG Flash every 2 months. Most recently, Space Decks was updated on October 30, 2026 and GG Flash on November 5, 2026.

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