Comparison

Stacks vs SayThis

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

Head to head
About

Stacks

Create flashcards from your own experiences and conversations. This app uses spaced repetition to help you remember vocabulary longer with less study. It supports over 100 languages and offers offline study capabilities.

Highlights
  • Create cards from stories and conversations
  • Spaced repetition system (FSRS)
  • Offline study mode
  • Automatic translations
  • Supports over 100 languages
  • Romanization for select scripts
  • Clean, minimal interface
Features
Read full description

Your stories are better. Life's too short to cram from borrowed lists. Stacks turns trips and conversations into cards, then spaced-repetition (FSRS) handles the science. Episodic memory meets spaced repetition. Dream team. Benefits: β€’ Keep momentum anywhere – Study offline on flights, trains, or dead zones. β€’ Stay in sync across devices – Your progress follows you automatically. β€’ Focus without distractions – No ads, just learning. β€’ Create cards in seconds – Automatic translations speed up card creation. β€’ Learn with clearer meanings – Premium DeepL translations offer high accuracy and context. β€’ Remember longer with less study – FSRS schedules reviews at the right time. β€’ Learn the language you care about – Supports over 100 languages. β€’ Crack non-Latin scripts faster – Romanization for select languages like Japanese, Arabic, Russian, and Hindi. β€’ Feel calm while you study – A clean, minimal interface that gets out of the way. Free and Plus Create up to 40 cards for free. Upgrade to Stacks Plus for unlimited cards, DeepL translations, spaced repetition customisation, and more. Perfect for language learners, students, and polyglots who want to study offline, master vocabulary, and remember more with flashcards. Privacy Policy: https://www.thestacksapp.com/privacy Terms of Service: https://www.thestacksapp.com/terms-of-service EUSA: https://www.apple.com/legal/internet-services/itunes/dev/minterms/

About

SayThis

Features
Read full description

Know what you want to sayβ€”but not how to say it naturally in Korean? SayThis turns the exact moment you are facing into a Korean lesson made for you. Type a situation like β€œorder an iced coffee,” β€œintroduce myself to a coworker,” or β€œask for directions,” and learn a phrase you can actually use. Stop memorizing random textbook sentences. Learn Korean for your life. KOREAN FOR THE MOMENT β€’ Create useful phrases from any everyday situation β€’ Get a clear English meaning and easy-to-follow romanization β€’ Understand how the expression works and when Koreans use it β€’ Choose polite, casual, or business speech for the right tone β€’ Adjust lesson detail from beginner to advanced HEAR IT. FOLLOW IT. SAY IT. β€’ Listen to Korean phrases with text-to-speech β€’ Follow pronunciation and rhythm guidance β€’ See the phrase used in natural example conversations β€’ Learn the key words that make each expression useful BUILD A FOUNDATION New to Korean? Start with guided Hangul lessons covering consonants, vowels, and common sound patterns. Then move from reading the alphabet to practicing complete phrases for real situations. KEEP THE KOREAN YOU NEED β€’ Save personalized lessons to your library β€’ Favorite expressions you want to use again β€’ Reinforce them with quick review MADE FOR REAL LIFE Use SayThis to prepare for cafΓ©s, restaurants, travel, shopping, work, social situations, and the conversations that matter to you. Every prompt becomes a lesson built around your goalβ€”not a generic phrase list. AI-generated lessons may contain mistakes. Use SayThis as a learning aid and confirm important language with a qualified speaker. Your next Korean conversation starts with what you want to say. Privacy Policy: https://scarlet-cloth-638.notion.site/Privacy-Policy-Terms-of-Service-3d4d6639ea4d80d8be05c88075081330?pvs=141 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stacks4 screens
SayThis4 screens

Verdict

The call

The clearest difference is ads: Stacks at none against SayThis's shown. SayThis's advantage is update cadence (daily vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Stacks sells 2 in-app purchases, starting at $9.99 per 3 months and SayThis sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stacks ships an update every 3 months, SayThis daily. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

Scorecard2 real differences Β· 6 level
Stacks versus SayThis: the parameters behind the verdict, then further details
ParameterStacksSayThis
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 3 monthsDaily β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
MonetizationFreemiumβ€”
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.0 β€” better
Further details β€” not scored
Size77 MB42 MB
Age rating4+4+
DeveloperLewis HoyEveronx

In-app purchases

2 purchases

Stacks

Subscriptions2
  • Stacks+ Quarterly$9.993 Months
  • Stacks+ Yearly$27.991 Year
2 purchases

SayThis

Subscriptions1
  • SayThis Plus$6.991 Month
One-time1
  • 100 Credits$3.99

Questions

Is Stacks free?
Stacks is free to download, with in-app purchases available.
Is SayThis free?
SayThis is free to download, with in-app purchases available.
Do Stacks or SayThis have ads?
SayThis shows ads; Stacks does not.
Which is updated more often, Stacks or SayThis?
Stacks ships an update every 3 months, and SayThis daily. Most recently, Stacks was updated on October 16, 2026 and SayThis on October 9, 2026.

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