Comparison

GrammarEasy vs Synapse

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

Head to head
About

GrammarEasy

Features
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Can't always check your child's English essays โ€” or not confident enough to spot every mistake? GrammarEasy gives your child instant, accurate feedback on every essay, so you don't have to. Designed for primary school students aged 8โ€“16, GrammarEasy checks grammar, spelling, punctuation, and vocabulary in seconds. Every mistake comes with a clear, plain-language explanation your child can actually understand โ€” not just a red mark. โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” HOW IT HELPS YOUR CHILD โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” Instant Grammar Check (Free) Checks grammar, spelling, punctuation, and vocabulary the moment you tap. Works offline โ€” no internet needed. AI Deep Check (Premium) Our AI goes deeper than standard checking โ€” it catches tense inconsistencies, awkward phrasing, and vocabulary choices that rule-based tools miss. Explanations are in plain language, so your child understands what to fix and why. Up to 20 checks per week, included with Premium. Essay History (Premium) Every checked essay is saved. Review past results anytime to see what errors were flagged and how writing has improved. Progress Insights See your child's error breakdown by type โ€” grammar, spelling, punctuation, vocabulary โ€” and spot recurring mistakes before the next exam. โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” PERFECT FOR PARENTS WHO โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” - Aren't confident checking English essays themselves - Want their child to get feedback beyond just "wrong" - Are looking for an affordable alternative to English tutors - Want to track whether their child's writing is actually improving โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” AI EXPLANATIONS IN CHINESE โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” Set your device language to Traditional or Simplified Chinese and AI Deep Check explanations are automatically written in Chinese โ€” so your child understands the feedback even better. Payment is charged to your Apple ID at confirmation of purchase. Subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in App Store account settings. Privacy Policy: https://grammareasy.app/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Synapse

Features
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Study anything. Remember everything. Synapse is a fast, native flashcard app for learning anything โ€” built around proven spaced repetition, so it shows you each card right before you'd forget it and you remember more in less time. Create your own decks or import the ones you already use, sketch with Apple Pencil, and get private AI coaching that knows exactly where you're struggling. WHY SYNAPSE โ€ข Modern spaced repetition โ€” Synapse uses FSRS, a modern open-source memory model, to schedule each card just before you'd forget it. Grade every card Again, Hard, Good, or Easy and Synapse handles the rest. Prefer the classic SM-2 algorithm? Switch any time in Settings. โ€ข Bring your own decks โ€” Import the .apkg flashcard decks you already own. Synapse rebuilds the subject and chapter hierarchy and renders images, LaTeX, and cloze deletions. โ€ข Apple Pencil scratchpad โ€” Work physics and chemistry problems right beside the card. The scratchpad clears between cards, so your reasoning stays with the question it belongs to. โ€ข Insightful analytics โ€” See your reviews over time, filter by range, and tap any subject to drill in. Spot the topics slipping before they cost you points. โ€ข Resource library โ€” Keep your PDFs, notes, and reference docs in nested folders right next to your decks, and read them without leaving the app. โ€ข iCloud sync โ€” Study on iPad at home and review on iPhone between classes. Your decks and progress sync automatically through your private iCloud โ€” no account to create. STUDY ANYTHING Synapse started as an MCAT tool and still excels at it โ€” but you can build decks for whatever you need to learn: med-school boards, anatomy, pharmacology, histology, nursing, the bar exam, the GRE, languages like Spanish, music theory, and more. If it fits on a flashcard, you can learn it here. A STUDY COACH THAT RUNS ON YOUR DEVICE Synapse uses Apple Intelligence to turn your own study data into real guidance โ€” what to review next, which subjects are slipping, and how your progress looks. Ask it anything about your decks. โ€ข Grounded in your data โ€” it only talks about your real subjects and progress; it won't invent topics or facts. โ€ข Private by design โ€” the model runs on-device. Your study history never leaves your iPhone or iPad. No servers, no accounts. โ€ข Works offline โ€” coaching is right there during a study session. PRIVATE BY DEFAULT No ads. No tracking. No account. Your decks, cards, and progress live on your device and sync through your own private iCloud โ€” we never see them. FREE TO START Use Synapse free with up to 5 card reviews a day and unlimited cards โ€” every feature included. Upgrade to Synapse Premium for unlimited daily reviews: โ€ข Monthly โ€” $4.99/month, cancel anytime โ€ข Annual โ€” $49.99/year (save 17%), cancel anytime โ€ข Lifetime โ€” $89.99 one-time purchase Payment is charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. The lifetime unlock is a one-time purchase. Privacy Policy: https://synapse.roitechllc.com/privacy Terms of Use: https://synapse.roitechllc.com/terms Download Synapse and study smarter. โ€” Synapse is not affiliated with, or endorsed by, Anki or the Association of American Medical Colleges. MCAT is a registered trademark of the AAMC.

Screenshots

GrammarEasy4 screens
Synapse4 screens

Verdict

The call

GrammarEasy and Synapse are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. GrammarEasy sells 3 in-app purchases, starting at $0.99 per 7 days and Synapse sells 2 in-app purchases, starting at $79.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

GrammarEasy ships an update fortnightly, Synapse every 3 weeks. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

ScorecardNo meaningful differences
GrammarEasy versus Synapse: the parameters behind the verdict, then further details
ParameterGrammarEasySynapse
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details โ€” not scored
Size2 MB8 MB
Age rating4+4+
DeveloperYu Ngon NgRoi Rozenthal

In-app purchases

3 purchases

GrammarEasy

Subscriptions3
  • Premium (Weekly)$0.997 Days
  • Premium(6 Months )$17.996 Months
  • Premium(Annual)$29.991 Year
2 purchases

Synapse

Subscriptions1
  • Synapse Premium7 Days trial$79.991 Year
One-time1
  • Synapse Premium โ€” Lifetime$99.99

Questions

Is GrammarEasy free?
GrammarEasy is free to download, with in-app purchases available.
Is Synapse free?
Synapse is free to download, with in-app purchases available.
Do GrammarEasy or Synapse have ads?
Neither GrammarEasy nor Synapse shows ads.
Which is updated more often, GrammarEasy or Synapse?
GrammarEasy ships an update fortnightly, and Synapse every 3 weeks. Most recently, GrammarEasy was updated on October 7, 2026 and Synapse on October 5, 2026.

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