# SD Master vs EcoOne

The clearest difference is update cadence: EcoOne at weekly against SD Master's every 2 months. SD Master's advantage is iOS requirement (9.0 vs 15.5). 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.

SD Master ships an update every 2 months, EcoOne weekly. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SD Master | EcoOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (5 ratings)](https://appshunter.io/ios/app/ecoone/id1519364288/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 28 MB | 99 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Zhumang Information Technology Co., Ltd.](https://appshunter.io/developer/1578234346) | [Ecotek Technological](https://appshunter.io/developer/1457553351) |

## What reviewers say

### SD Master

[App page](https://appshunter.io/ios/app/sd-master/id1491447628)

**Features:** macOS Compatibility

**In-app purchases:** none


### EcoOne

[App page](https://appshunter.io/ios/app/ecoone/id1519364288)

This app serves as a smart information hub for Ecopark residents and visitors. It provides updates, helps navigate the bus system, allows personal information management, and facilitates electronic bill payments.

**Highlights:** Smart information board, Merchant discovery, Bus route and schedule lookup, Real-time bus tracking, Personal information management, Electronic bill payments

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

**In-app purchases:** none


## Frequently asked questions

### Is SD Master free?

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

### Is EcoOne free?

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

### Do SD Master or EcoOne have ads?

Neither SD Master nor EcoOne shows ads.

### Which is updated more often, SD Master or EcoOne?

SD Master ships an update every 2 months, and EcoOne weekly. Most recently, SD Master was updated on September 18, 2026 and EcoOne on September 17, 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.*