Build vs NumiKids
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Build
This app offers short, focused math drills for addition, subtraction, multiplication, and division. It provides instant feedback and tracks progress through engaging sessions designed for quick practice.
- Short, focused math practice sessions
- Master addition, subtraction, multiplication, division
- Instant feedback with haptics, color, and sound
- Smart question rotation for confidence
- Progress tracking and summaries
- Works offline, no ads, no accounts
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Turn 1–5 minutes into real math practice. Build‑A‑Math is a focused drill app for mastering addition, subtraction, multiplication, and division. Tap answers on the large on‑screen keypad, get instant feedback, and watch your progress bar fill as you work. # Why it works - Short, focused sessions (1–5 minutes) keep practice consistent and stress‑free. - Instant feedback with gentle haptics, color, and sound—celebrate correct answers and learn from mistakes. - Smart rotation of questions: a small set of problems stays in play; fast, correct solves are retired so you can move forward confidently. - Results you can feel: a cheerful summary shows Questions tried and Mastered today after each session. # Designed for real life - Pick the operations you want: +, −, ×, ÷. - Auto‑check answers as you type (single‑digit checks instantly; two‑digit checks on the second digit). - Works great in portrait or landscape on iPhone and iPad. - No ads. No accounts. Works offline. Perfect for classroom warm‑ups, brain breaks, and at‑home practice—anytime you have a minute (or five).
NumiKids
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NumiKids is a simple and focused math practice app for kids. Practice addition, subtraction, multiplication, division, time and mixed quizzes in short, focused sessions. Create local child profiles, adjust difficulty, review mistakes, track test results and export simple PDF reports. NumiKids is designed to be calm, clear and privacy-friendly: • No account required • No ads • No tracking • Data stays on your device • Works on iPhone and iPad Main features: • Addition, subtraction, multiplication and division practice • Time practice • Mixed practice mode • Test mode with results history • Mistakes saved for review • Local child profiles with avatars • Statistics and average answer time • PDF report export and sharing • Optional local reminders NumiKids helps children practise core math skills at their own pace, without distractions. Terms of Use: https://www.numikids.app/terms/
Screenshots
Verdict
The clearest difference is in-app purchases: Build at none against NumiKids's 2. On price, update cadence, ads 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. NumiKids sells 2 in-app purchases, starting at $5.99 per month. Build asks for nothing beyond the download.
Build ships an update fortnightly, NumiKids every 3 weeks. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.
| Parameter | Build | NumiKids |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18 |
| Further details — not scored | ||
| Size | 1 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Weiran Ye | Gulios |
In-app purchases
Build
No in-app purchases
NumiKids
- NumiKids Monthly3 Days trial$5.991 Month
- NumiKids Yearly3 Days trial$59.991 Year





