# OttoPilot vs 建築電卓

The clearest difference is ads: OttoPilot at none against 建築電卓's shown. OttoPilot also leads on iOS requirement (15.6 vs 17.0). 建築電卓's advantage is update cadence (every 5 days vs every 5 weeks). On price, 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.

OttoPilot ships an update every 5 weeks, 建築電卓 every 5 days. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OttoPilot | 建築電卓 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (36 ratings)](https://appshunter.io/ios/app/ottopilot/id6449269013/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 14.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 51 MB | 4 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Cartizan Technology Co., Ltd.](https://appshunter.io/developer/1434040269) | [tasuku nayuki](https://appshunter.io/developer/1896779740) |

## What reviewers say

### OttoPilot

[App page](https://appshunter.io/ios/app/ottopilot/id6449269013)

Enhance your driving with this app, offering a new experience through intuitive guidance and feedback. Access product information, after-sales service, and purchase links directly from your device while on the go.

**Highlights:** Intuitive user guidance, Driving feedback, Product introduction, After-sales service, Product purchase link, Product description

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 建築電卓

[App page](https://appshunter.io/ios/app/id6809843490)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OttoPilot free?

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

### Is 建築電卓 free?

建築電卓 is free to download, with no in-app purchases.

### Do OttoPilot or 建築電卓 have ads?

建築電卓 shows ads; OttoPilot does not.

### Which is updated more often, OttoPilot or 建築電卓?

OttoPilot ships an update every 5 weeks, and 建築電卓 every 5 days. Most recently, OttoPilot was updated on October 22, 2026 and 建築電卓 on October 10, 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.*