Chairo vs Number Knights
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Chairo
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Access the key features of Chairo from the palm of your hand with the Chairo Christian School app, developed in partnership with Digistorm and Schoolbox. Receive instant and important information from your school community, receive real-time alerts and experience seamless collaboration between teachers, parents and students. Key features of the Chairo Christian School app: Notifications: notifications are synced with Schoolbox to ensure that you receive targeted and important push notifications that matter to you Messages: messages allow parents, teachers and students to communicate personally, in groups or to receive targeted communications from Chairo Christian School Calendar: the Calendar provides parents, teachers and students a personalised view of what's coming up for the day or in the future. Students can also receive reminders when the due date for their work is approaching Due Work: this module allows students and their parents to know and be reminded when their school work is due News: news provides the school community with the latest information on what's happening at Chairo Christian School Timetable: the timetable feature pulls information dynamically from Schoolbox so that teachers and students always know where they need to be Settings allows you to manage the frequency and type of notifications that you receive from Chairo Christian School. Developed by Digistorm - Software for Smarter Schools.
Number Knights
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Number Knights turns math practice into a genuine action RPG. Kids solve real problems โ addition, subtraction, multiplication, fractions, algebra, and more โ to swing swords, cast spells, and defeat bosses. Wrong answers teach: the game shows the strategy (count-on, repeated addition, number lines) before the next attempt. No game-overs, no shame, just learning. REAL RPG โ REAL MATH Choose from 6 hero classes: warrior, mage, ranger, thief, paladin, or necromancer. Level up, grow a skill tree, and explore an open world with procedurally generated maps, boss battles, town NPCs, shops, and five chapters of story in "The Shattered Ledger". Loot with rarity tiers keeps every run exciting. CURRICULUM THAT GROWS WITH YOUR CHILD Number Knights covers the full elementary math journey: - Counting and comparison (pre-K) - Shapes, even/odd, patterns (K) - Place value and all four operations (grades 1-3) - Times tables and fractions (grades 3-4) - Word problems (grades 2-5) - Optional algebra โ solve for x (unlockable at any level) PARENT AND TEACHER CONTROLS A grown-ups-only gate lets adults configure exactly which question types appear. Start a kindergartner on counting, jump a gifted learner straight to algebra, or pin a third-grader to multiplication. A per-topic report card shows where each child is strong and where more practice helps. PRACTICE DOJO Endless monster waves scaled to any topic. Kids pick one skill โ say, 7x tables โ and the Dojo throws harder and harder problems while dropping better and better loot. Pure drilling made irresistible. ADAPTIVE DIFFICULTY Problems scale with player level and shift automatically toward the operations each child finds hardest. No manual tuning needed. DESIGNED FOR YOUNG LEARNERS - Voice narration reads every problem aloud (perfect for pre-readers) - Encouraging failure design: die in battle, revive in town โ no data lost - Bright, age-appropriate art; no ads; no social features - Ages 4-11 (pre-K through elementary) WHAT'S INCLUDED Free trial: full starter campaign โ town, grove, dungeon, and the first wilds. Unlock the complete world (all chapters, all zones, full skill trees) with a subscription or one-time lifetime purchase. Plans available: monthly, yearly, or lifetime โ no ads, no surprise charges. Privacy: no personal data collected from children. Compliant with COPPA and Apple's Kids Category guidelines. Support: info@ace-games.com Privacy Policy: https://www.ace-games.com/policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Chairo at none against Number Knights's 3. Chairo also leads on iOS requirement (13.0 vs 15.0). Number Knights's advantage is update cadence (every 2 days vs every 2 months). On price, ads and device support 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
Both are free to download. Number Knights sells 3 in-app purchases, starting at $1.99 per month. Chairo asks for nothing beyond the download.
Chairo ships an update every 2 months, Number Knights every 2 days. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.
| Parameter | Chairo | Number Knights |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 28 MB | 101 MB |
| Age rating | 4+ | 9+ |
| Developer | WARRAGUL DISTRICT PARENT CONTROLLED CHRISTIAN SCHOOL ASSOCIATION INC | Ace-Games |
In-app purchases
Chairo
No in-app purchases
Number Knights
- English$1.991 Month
- English$12.991 Year
- English$19.99
Questions
Is Chairo free?
Is Number Knights free?
Do Chairo or Number Knights have ads?
Which is updated more often, Chairo or Number Knights?
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