# Build vs arduinoSG90

The clearest difference is update cadence: arduinoSG90 at daily against Build's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Build ships an update fortnightly, arduinoSG90 daily. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Build | arduinoSG90 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/build-a-math/id1521174530/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Free | — |
| Size | 1 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Weiran Ye](https://appshunter.io/developer/481592104) | [YASUYUKI INUKAI](https://appshunter.io/developer/689779927) |

## What reviewers say

### Build

[App page](https://appshunter.io/ios/app/build-a-math/id1521174530)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### arduinoSG90

[App page](https://appshunter.io/ios/app/arduinosg90/id6482847820)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Build free?

Build is free to download, with no in-app purchases.

### Is arduinoSG90 free?

arduinoSG90 is free to download, with no in-app purchases.

### Do Build or arduinoSG90 have ads?

Neither Build nor arduinoSG90 shows ads.

### Which is updated more often, Build or arduinoSG90?

Build ships an update fortnightly, and arduinoSG90 daily. Most recently, Build was updated on October 1, 2026 and arduinoSG90 on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*