Comparison

Spark vs Keelo

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

Head to head
About

Spark

Features
Read full description

Introducing Spark, the ultimate app for efficient and engaging studying! Designed to help learners of all ages, Spark makes mastering any subject easier through its customizable flashcards, interactive tests, and more. Key Features of Spark: Spaced Repetition Flashcards: Spark uses proven spaced repetition techniques to enhance your memory retention. Flashcards are shown at optimal intervals based on your progress, helping you remember information for the long term and making your study sessions more effective. AI-Generated Incorrect Answers: Make your flashcard sets even more valuable! Use AI to generate incorrect answers for your tests, enhancing learning by challenging you to distinguish between right and wrong responses, simulating real exam conditions. Interactive Tests: Personalize your study sessions with interactive tests. Spark’s quizzes are tailored to your flashcards, allowing you to assess your knowledge, track progress, and focus on areas that need improvement, ensuring you're fully prepared for exams. Match Game: Reinforce your learning with Spark’s fun match game! This feature lets you pair terms with definitions, making studying feel like a game while solidifying your knowledge. *Custom Printing Options: Whether you prefer digital flashcards or like to study with printed versions, Spark offers flexible printing options. Print your flashcards in a 3x5 format or opt for a layout of six flashcards per page, perfect for quick reviews or group study sessions. You can even print entire sets of terms and definitions for comprehensive study or create and print tests with answer keys to hand out to your students, making classroom preparation a breeze. Spark combines the power of spaced repetition, AI-driven features, and interactive learning tools like quizzes and games, turning traditional studying into a modern, efficient, and fun experience. Whether you’re preparing for an exam, revising key concepts, or just brushing up on knowledge, Spark is your all-in-one study companion. Achieve your study goals with Spark and make learning smarter, faster, and more effective! *Must have "Premium" subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Keelo

Features
Read full description

Keelo turns the words and expressions you don't know into ready-to-study Anki flashcards β€” no manual card-writing required. How it works 1. Capture a word or expression you just ran into β€” in either language you're learning. 2. Keelo's AI drafts a complete flashcard: translation, definition, example sentences, a cloze sentence, grammar notes, and pronunciation. 3. Review and edit the draft, save it to a deck, then export straight to Anki. Built for real studying, not another app to juggle Keelo doesn't reinvent spaced repetition β€” it feeds the tool you (or millions of learners) already trust. Export any deck as a ready-to-import .apkg file and open it in Anki Desktop, AnkiDroid, or AnkiMobile. Every field maps automatically; nothing to configure. Your AI key, your control Keelo uses your own API key from Claude (Anthropic) or GPT (OpenAI) β€” whichever you already have. Your key is stored only on your device, sent directly with each card request, and never saved, logged, or seen by Keelo's servers beyond that single request. No Keelo subscription, no markup on AI usage β€” you pay your provider directly, at their rates. Organize your way Create as many decks as you like, one per language pair or topic. Swipe to delete, edit any card after the fact, and track your daily capture streak. Available in English, Portuguese, Spanish, French, and German, with more languages on the way. Keelo is currently in beta β€” features are actively evolving based on real study habits, and we'd love your feedback.

Screenshots

Spark4 screens
Keelo4 screens

Verdict

The call

The clearest difference is in-app purchases: Keelo at none against Spark's 2. On price, ads, 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. Spark sells 2 in-app purchases, starting at $0.99 per month. Keelo asks for nothing beyond the download.

Scorecard1 real difference Β· 5 level
Spark versus Keelo: the parameters behind the verdict, then further details
ParameterSparkKeelo
PriceFreeFree
Update frequencyEvery 3 daysβ€”
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0.013.0 β€” better
Further details β€” not scored
Size63 MB26 MB
Age rating4+4+
DeveloperJNRA Legacy, LLCThiago Dias

In-app purchases

2 purchases

Spark

Subscriptions2
  • Spark Premium Monthly$0.991 Month
  • Spark Premium Annual$9.991 Year
None

Keelo

No in-app purchases

Questions

Is Spark free?
Spark is free to download, with in-app purchases available.
Is Keelo free?
Keelo is free to download, with no in-app purchases.
Do Spark or Keelo have ads?
Neither Spark nor Keelo shows ads.

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