Kid Math vs InterestOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kid Math
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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.
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.
- Personalized learning packs
- Printable stories and worksheets
- Parent guides for easy teaching
- Aligned with academic standards
- Kid-friendly artwork
- Progress tracking
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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
Verdict
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
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.
Kid Math ships an update every 3 weeks, InterestOS weekly. The most recent releases landed on September 29, 2026 and October 31, 2026 respectively.
| Parameter | Kid Math | InterestOS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 42 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Tuyen Nguyen | JAKE ROBERT CRAYCRAFT |
In-app purchases
Kid Math
- 30 credits$0.99
- 70 credits$1.99
- 180 credits$4.99
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- 400 credits$9.99
InterestOS
- InterestOS Premium14 Days trial$9.991 Month
Questions
Is Kid Math free?
Is InterestOS free?
Do Kid Math or InterestOS have ads?
Which is updated more often, Kid Math or InterestOS?
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