Comparison

Kid Math vs InterestOS

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

Head to head
About

Kid Math

Features
Read full description

Math Sheet Maker helps parents and teachers easily create printable math worksheets for elementary students – right from your smartphone. * Key Features: Create exercises for addition, subtraction, multiplication, division, or a mix of operations Generate "find the operator" challenges to sharpen problem-solving skills Fully customizable layout: choose between vertical or horizontal format Set number of rows and columns, as well as the minimum and maximum values for operands Instantly generate a printable PDF – with real-time preview Print directly from the app if your phone is connected to a printer via Wi-Fi Export or share PDF files via email, chat apps, cloud storage, and more Automatically save and manage your worksheet history for easy access later * Whether you're a teacher preparing homework or a parent supporting your child’s learning, Math Sheet Maker gives you the tools to create focused, flexible, and fun math practice anytime.

About

InterestOS

Personalized, printable learning packs for K-5 students based on their interests. Generates stories, worksheets, and parent guides aligned with academic standards. Offers a free trial and subscription for monthly packs.

Highlights
  • Personalized learning packs
  • Printable stories and worksheets
  • Parent guides for easy teaching
  • Aligned with academic standards
  • Kid-friendly artwork
  • Progress tracking
Features
Read full description

InterestOS turns what your child already loves — dinosaurs, soccer, space, horses — into personalized lessons they’ll actually want to sit down for. Fill them in right on your iPhone or iPad, or print them out. Tell us your child’s name, grade, and a few interests. InterestOS picks an official grade-level standard and writes a complete learning pack around it in seconds: • A STORY starring their interests, written at their reading level • A WORKSHEET on a real K–5 skill, aligned to official standards — tap it in or print it • A PARENT GUIDE so you can teach it in a few minutes — no prep • Original, kid-friendly artwork you can print in color, black & white, or as a coloring page PRINT IT, OR TAP IT IN Every worksheet can be printed — or completed right on your iPhone or iPad. Your child taps and types their answers and each one checks itself instantly, with gentle encouragement instead of red X's. When they finish, you see exactly what they answered and what they missed. It all happens on the device: no internet, no AI, nothing about your child sent anywhere. Every pack is built on real academic standards — the full Common Core (Reading, Writing, Math, Language), the Next Generation Science Standards, and California History–Social Science. You choose the subject and skill; we handle the rest. WHY PARENTS LOVE IT • Personalized to your child, not a generic worksheet • Hand over the iPad, or print at home and go — the couch, the kitchen table, the car • Follows your child’s grade, from Kindergarten through 5th • A simple “journey” view tracks skills practiced and completed PARENT-FIRST AND PRIVATE BY DESIGN • No child login and no child chat — a parent runs everything • We only use a first name/nickname, grade, reading level, and interests to make a pack. Never an address, school, birthday, or photos. • Brand-name interests are converted to safe, generic themes before anything is generated, so packs stay original and age-appropriate. SUBJECTS Reading · Writing · Math · Spelling & Vocabulary · Science · Social Studies TRY IT FREE Make 2 personalized packs free, no card required. Printing, layout edits, and fixing a pack are always free. INTERESTOS PREMIUM Unlimited fresh, AI-personalized packs — as many as your family wants. InterestOS Premium is a monthly auto-renewing subscription — $6.99/month after a 7-day free trial. • A payment method is required to start the free trial. You are not charged during the 7 days; billing begins only after the trial ends, unless you cancel first. • Payment is charged to your Apple ID when the free trial ends and at the start of each renewal period. • The subscription renews automatically unless canceled at least 24 hours before the end of the current period. • Manage or turn off auto-renew anytime in your App Store account settings. Terms of Use: https://interest-os.com/terms.html Privacy Policy: https://interest-os.com/privacy.html

Screenshots

Kid Math4 screens
InterestOS4 screens

Verdict

The call

The clearest difference is update cadence: InterestOS at weekly against Kid Math's every 3 weeks. Kid Math's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support 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. Kid Math sells 4 one-off in-app purchases and InterestOS sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kid Math ships an update every 3 weeks, InterestOS weekly. The most recent releases landed on September 29, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Kid Math versus InterestOS: the parameters behind the verdict, then further details
ParameterKid MathInterestOS
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size42 MB13 MB
Age rating4+4+
DeveloperTuyen NguyenJAKE ROBERT CRAYCRAFT

In-app purchases

4 purchases

Kid Math

One-time4
  • 30 credits$0.99
  • 70 credits$1.99
  • 180 credits$4.99
Show 1 more
  • 400 credits$9.99
1 purchases

InterestOS

Subscriptions1
  • InterestOS Premium14 Days trial$9.991 Month

Questions

Is Kid Math free?
Kid Math is free to download, with in-app purchases available.
Is InterestOS free?
InterestOS is free to download, with in-app purchases available.
Do Kid Math or InterestOS have ads?
Neither Kid Math nor InterestOS shows ads.
Which is updated more often, Kid Math or InterestOS?
Kid Math ships an update every 3 weeks, and InterestOS weekly. Most recently, Kid Math was updated on September 29, 2026 and InterestOS on October 31, 2026.

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