Comparison

Hachi vs Cool Mate

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

Head to head
About

Hachi

Features
Read full description

AI for kids. Made by parents. Hachi is here to help with life's big (and little) questions - because no one has all the answers. By sparking your child's curiosity, Hachi creates opportunities for fun, parent-led conversations and real-world learning beyond the screen. 1-WEEK FREE TRIAL A subscription is needed to access the app. Select between our monthly or annual plans and enjoy a 1-week free trial, with the flexibility to cancel anytime! Monthly Plan: Ask up to 1,000 questions each month. This plan renews monthly and offers full access. Annual Plan: Enjoy the same access as the Monthly Plan, asking up to 1,000 questions each month, plus save with a discounted rate by subscribing for the whole year! FEATURES Simple & Fun An easy-to-use, educational, and safe space for kids to engage with AI. Voice Controlled No typing required. Just ask out loud and Hachi will answer. Keep Your Data No registrations, no data tracking, no ads. Just fun. Parental Controls On-device logs and flags for parents to review. Safe Introduction to AI Give kids a fun, safe, and age-appropriate introduction to AI. Monitor Usage Monitor your child's questions and flagged topics. Set Limits Set limits for the max number of questions allowed per day. Customise Colours Choose your child's favourite Hachi colour. END-USER LICENSE AGREEMENT (EULA) https://hachi.bot/eula/

About

Cool Mate

Features
Read full description

Ever watched a movie in English and missed half the dialogue? Cool Mate fixes that. We pull the keywords, phrases, and idioms straight from popular TV shows and movies. You learn them first through bite-sized challenges. Then, when you hit play on your favorite show, nothing slips past you. HOW IT WORKS 1. We break down real scenes into the words and phrases that matter 2. You see a word or phrase. Know it? Don't? That's simple. 3. Our AI-powered algorithm, built on the Leitner spaced repetition system, schedules your reviews automatically 4. Words you struggle with come back more often. Words you know get spaced out further. 5. You keep going until every word reaches mastery The result? You stop guessing and start understanding. WHY IT WORKS Traditional apps teach you "the cat is on the table." Real conversations sound nothing like that. Cool Mate teaches you what native speakers actually say, the way they actually say it. Slang, idioms, fast speech, all of it. FEATURES - Real clips from popular entertainment - Word-by-word subtitle breakdowns - AI-powered spaced repetition adapted to your memory - Track your streaks, accuracy, and mastery - Apple Watch companion app - 12 source languages supported Stop missing the good parts. Start understanding all of them. Subscription Plans: - Pro Monthly, $9.99 per month, auto-renewing - Pro Yearly, $49.99 per year, auto-renewing - Pro Lifetime, $99.99 one-time purchase Monthly and Yearly renew automatically unless canceled at least 24 hours before the end of the current period. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yocoolmate.com/privacy

Screenshots

Hachi4 screens
Cool Mate4 screens

Verdict

The call

The clearest difference is update cadence: Hachi at every 3 days against Cool Mate's every 2 weeks. Cool Mate's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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. Hachi sells 2 in-app purchases, starting at $0.99 per month and Cool Mate sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hachi ships an update every 3 days, Cool Mate every 2 weeks. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

Scorecard2 real differences ยท 4 level
Hachi versus Cool Mate: the parameters behind the verdict, then further details
ParameterHachiCool Mate
PriceFreeFree
Update frequencyEvery 3 days โ€” betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Mac, Apple Watch โ€” better
Requires iOS17.0.016.4 โ€” better
Further details โ€” not scored
Size17 MB84 MB
Age rating4+12+
DeveloperEveryday Digital (Pty) LtdSARA TORKAMANI

In-app purchases

2 purchases

Hachi

Subscriptions2
  • Monthly Plan7 Days trial$0.991 Month
  • Annual Plan7 Days trial$9.991 Year
3 purchases

Cool Mate

Subscriptions2
  • Monthly$9.991 Month
  • Yearly$49.991 Year
One-time1
  • Lifetime$99.99

Questions

Is Hachi free?
Hachi is free to download, with in-app purchases available.
Is Cool Mate free?
Cool Mate is free to download, with in-app purchases available.
Do Hachi or Cool Mate have ads?
Neither Hachi nor Cool Mate shows ads.
Which is updated more often, Hachi or Cool Mate?
Hachi ships an update every 3 days, and Cool Mate every 2 weeks. Most recently, Hachi was updated on October 30, 2026 and Cool Mate on November 9, 2026.

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