# eMaaS+行動服務 vs Otrol

eMaaS+行動服務 and Otrol are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

eMaaS+行動服務 ships an update monthly, Otrol every 2 months. The most recent releases landed on June 3, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | eMaaS+行動服務 | Otrol |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 13 MB | 38 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Etrovision Technology](https://appshunter.io/developer/557101954) | [DoubleVision Technology Co., Ltd.](https://appshunter.io/developer/1146786618) |

## What reviewers say

### eMaaS+行動服務

[App page](https://appshunter.io/ios/app/emaas-plus/id1530161705)

Find parking availability and pay monthly fees at convenience stores. Discover tourist spots and access ferry, flight, and bus schedules. Features include car rental navigation and keyless entry via Bluetooth.

**Highlights:** Parking availability search, Monthly parking fee payment, Tourist attraction discovery, Ferry, flight, and bus schedules, Car rental navigation, Bluetooth car door control

**In-app purchases:** none


### Otrol

[App page](https://appshunter.io/ios/app/otrol-csc/id1558995591)

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

**In-app purchases:** none


## Frequently asked questions

### Is eMaaS+行動服務 free?

eMaaS+行動服務 is free to download, with no in-app purchases.

### Is Otrol free?

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

### Do eMaaS+行動服務 or Otrol have ads?

Neither eMaaS+行動服務 nor Otrol shows ads.

### Which is updated more often, eMaaS+行動服務 or Otrol?

eMaaS+行動服務 ships an update monthly, and Otrol every 2 months. Most recently, eMaaS+行動服務 was updated on June 3, 2026 and Otrol on September 14, 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.*