Comparison

Grammer Chat vs Numbat Math

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

Head to head
About

Grammer Chat

This AI-powered tool helps improve English writing by detecting and correcting grammar errors. It offers detailed explanations for each correction, suggests alternative phrasing, and allows users to save their learning insights for future reference.

Highlights
  • Instant grammar error detection
  • Real-time correction explanations
  • AI-powered sentence suggestions
  • Save learning insights
  • Personalized progress tracking
  • Intuitive user interface
Features
Read full description

AI Grammar Chat – Your Ultimate Grammar Assistant Take your English writing to the next level with AI Grammar Chat! Whether you're drafting an email, composing an essay, or simply trying to improve your grammar skills, AI Grammar Chat is here to help. Powered by advanced AI technology, the app detects grammar mistakes, offers corrections, and provides detailed explanations to help you learn from your errors. Key Features 1. Grammar Checking Made Simple Spot and correct grammar errors instantly. Just type or paste your text, and AI Grammar Chat will identify issues with grammar, punctuation, and sentence structure. 2. Real-Time Explanations Not just corrections! Get detailed explanations for every grammar rule applied, ensuring you understand the “why” behind every fix. 3. AI-Powered Suggestions Discover smarter and more polished ways to express your ideas with our AI-powered sentence suggestions. 4. Explore Similar Sentences Strengthen your basics by reviewing similar sentences for better context and usage. Perfect for learning how to phrase things differently. 5. Save Your Corrections Save your favorite corrections and insights for future reference. Build your own library of learnings to revisit anytime. 6. Personalized Grammar Insights Track your progress and focus on your common mistakes. The app highlights areas of improvement and offers tips to strengthen your writing skills. 7. Seamless and Intuitive Interface Our sleek and user-friendly design ensures that all the features are just a tap away. Whether you’re a beginner or an advanced learner, the app is intuitive and easy to navigate. Why AI Grammar Chat? - Perfect for students, professionals, and non-native speakers aiming to master English grammar. - Learn and grow as you write with in-depth grammar insights and suggestions tailored to your needs. - Improve your communication skills effortlessly, one sentence at a time. Download AI Grammar Chat today and take the first step toward mastering grammar with AI! Terms of Use: https://sites.google.com/view/aigrammarcheck/terms-of-use Privacy: https://sites.google.com/view/aigrammarcheck/privacypolicy

About

Numbat Math

This app helps students in grades 3-5 maintain their math skills over the summer break with short, engaging daily practice sessions. It focuses on areas where students struggle, offering step-by-step guidance instead of just answers.

Highlights
  • 10-minute daily math sessions
  • Adaptive learning engine
  • Human-verified math problems
  • Step-by-step guidance for errors
  • Common Core aligned curriculum
  • Parent-managed accounts
  • Progress tracking
Features
Read full description

Ten minutes of focused math a day — matched to your kid's grade and, more importantly, to what they actually struggle with. Numbat Math is a tutor in your kid's pocket. Each day they get a short, adaptive set of practice questions. When they get something wrong, our AI tutor doesn't hand them the answer — it asks the right question to nudge them toward figuring it out. (The same way the best classroom teachers do.) Built for grades 3, 4, and 5. Built by parents, for parents. WHAT YOUR KID GETS • A short daily practice session that fits into any routine. • 450+ human-verified questions across arithmetic, fractions, decimals, geometry, measurement, and word problems. • An AI tutor that explains every wrong answer in language they understand. • Streaks, XP, and badges that make showing up feel rewarding. • Difficulty that adapts — easy at first to build confidence, then ramps up as they're ready. WHAT YOU GET • A parent dashboard with the weekly numbers that matter: time on task, accuracy by topic, which skills need attention. • An optional weekly email summary delivered every Monday. • Real account controls: pause, change plan, or delete the account permanently from inside the app. WHY IT'S DIFFERENT Most "math apps" either lean on AI to generate questions on the fly (great until the AI hallucinates a wrong answer and grades your kid on it) or pile on rewards while papering over weak skills. Numbat Math takes the opposite approach: every question is human-verified before it ever reaches a kid, and the adaptive engine actively over-practices the topics your kid is weakest in — because that's where learning actually happens. PRICING • Monthly — $9.99/month (first month $4.99 for new subscribers). • Annual — $74.99/year, includes a 3-day free trial. Cancel anytime from your Apple subscriptions page. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. PRIVACY Your kid's name never leaves the device. Practice data is stored in our backend so the parent dashboard works, but it's never shared with third parties and never used to train anyone's AI model. Full policy: https://numbatmath.com/privacy.html

Screenshots

Grammer Chat4 screens
Numbat Math4 screens

Verdict

The call

The clearest difference is ads: Numbat Math at none against Grammer Chat's shown. Numbat Math also leads on update cadence (every 2 weeks vs every 3 weeks). On price, rating, ratings volume 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. Grammer Chat sells 3 in-app purchases, starting at $0.99 per 7 days and Numbat Math sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Grammer Chat against 5.0 for Numbat Math. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Grammer Chat ships an update every 3 weeks, Numbat Math every 2 weeks. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
Grammer Chat versus Numbat Math: the parameters behind the verdict, then further details
ParameterGrammer ChatNumbat Math
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings22
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size8 MB4 MB
Age rating4+4+
DeveloperGokmen AkarNumbat Math

Customer experience

Grammer Chat

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Numbat Math

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Grammer Chat

Subscriptions3
  • Weekly$0.997 Days
  • Monthly$1.991 Month
  • Quarterly$5.993 Months
3 purchases

Numbat Math

Subscriptions2
  • Monthly$9.991 Month
  • Annual3 Days trial$74.991 Year
One-time1
  • Summer Pass 2026$29.99

Questions

Is Grammer Chat free?
Grammer Chat is free to download, with in-app purchases available.
Is Numbat Math free?
Numbat Math is free to download, with in-app purchases available.
Which has better reviews, Grammer Chat or Numbat Math?
Grammer Chat and Numbat Math are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do Grammer Chat or Numbat Math have ads?
Grammer Chat shows ads; Numbat Math does not.
Which is updated more often, Grammer Chat or Numbat Math?
Grammer Chat ships an update every 3 weeks, and Numbat Math every 2 weeks. Most recently, Grammer Chat was updated on October 16, 2026 and Numbat Math on October 5, 2026.

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