# Sandbox Smart — Smart Roast Coffee

> Smart coffee roaster control app with pre-set and manual roasting options. (iPhone/iPad app by Sandbox Smart Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/sandbox-smart/id1492957836 (this page in markdown: same URL + `.md`)
- Developer: [Sandbox Smart Technology Co., Ltd.](https://appshunter.io/developer/1522236498)
- Category: Food & Drink, Lifestyle
- Price: Free with in-app purchases
- Rating: 2.60/5 from 7 App Store ratings · 18 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 93 MB
- Languages: American English, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Chinese (Simplified, China), European Spanish, Thai and 2 more
- Released: 2020-02-03
- Data updated: 2026-09-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sandbox-smart/id1492957836/reviews.md

## What is Sandbox Smart?

The smart home coffee bean roaster Sandbox Smart R1 connects smartphones with Bluetooth. The app comes with pre-programmed roast settings to make different roast levels: Light/Medium/Dark Roast for users to utilize and also manual settings to adjust roast parameters: Heat/Fan-speed/Drum Rotations Control for users to enjoy the fun of roasting their own exclusive flavors.

Your coffee, your choice.

http://www.sandboxsmart.com

 Apple Terms of Use (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Bluetooth connectivity
- Pre-programmed roast settings
- Manual roast parameter adjustment
- Heat control
- Fan speed control
- Drum rotation control

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| VIP subscription | $4.99 | per month |


## Recent user reviews (10 of 18)

All indexed reviews: https://appshunter.io/ios/app/sandbox-smart/id1492957836/reviews.md

### 1/5 — can’t save my profile

*2026-02-15*

I can see profile saved message. but its not!

### 5/5 — Dear Creator

*2025-11-09*

I’m really enjoying using it.
As a dedicated Sandbox Roaster user, I’d like to share a few suggestions.

1.  Shorten feedback latency for ROR, temperature data, etc.
The current data refresh interval feels a bit long. Near-real-time updates would make precise control during roasting much easier.

2.  Release a dedicated PC software version
Adding a PC desktop app alongside the mobile version would greatly enhance the roasting experience with larger screens and more accurate input devices.

3.  Freemium model restructuring suggestion
Keep advanced profile features paid, but:
	•  Remove limits on profile comparison and storage
	•  Fully enable profile sharing
Opening core features for free in this way would boost collaboration and network effects, significantly growing the overall user base.

### 2/5 — Captive App Frustrates

*2024-12-22*

Lots of problems. Here we go. (1) Only way to use their roaster is to use the app. The stock roast profiles are meh. They make you pay for their more advanced profiles (robbery). As you learn their roaster and try to understand their more advanced paid for profiles, they purposefully do not let you see their power/fan/drum speed settings, making it harder to learn and love their machine. Makes me want to throw it out and buy a more open roaster. It’s as if they feel like they need to pay for their software developers through subscription fees when they should sell more overall devices and become a bigger share of the home roasting market. Their strategy limits adoption given bad reviews of their customers (2) The app design is poor. Some screens force landscape while others do not allow landscape. Their users want landscape on all forms, but they haven’t resolved in the years the app has been out. Editing profiles are way too hard. Trial and error is how roasters work. It should be incredibly easy to just move control points around on a touch device (it’s not). Figuring out how to get to the screens to modify the past roast profile and edit is convoluted.  Honestly, the app needs a tear down and redo it’s so poor.

### 5/5 — 良い

*2024-11-14*

レビュー見て心配になりながらも買いました。
結論、大きな問題はないと思います。
日々進化してる感じです。

### 1/5 — Buggy version 3.8.0

*2023-12-15*

Once the new version has been released, the roasting doesn’t start: it shows an hour glass in the app and nothing happens

**Developer response:** We deeply apologize for the inconvenience caused. Please contact us through the link below. We will investigate the issue and work on a solution as soon as possible.
https://www.support.sandboxsmart.com/customer-service/report-form

### 4/5 — Landscape mode pretty please?

*2023-11-19*

PLEASE PLEASE allow this app to work in landscape mode.

I use tablet in my kitchen for any smart devices and recipes. It’s mounted on a wall. I can’t use the app unless I remove the tablet and rotate it….

### 5/5 — plz, I would like to have full landscape mode support.

*2023-06-22*

I would like to have full landscape mode support.

### 2/5 — Stopの警告ない

*2022-05-14*

細かい不具合やUXに問題があるのは他の方の指摘の通りとして、Stopボタンに警告などがなくいきなり終了するので、誤タップしたらリカバリーのしようがないのに腹が立ちます。

**Developer response:** ご提案ありがとうございます。現在、停止ボタンに二重確認の提示を追加しました。

### 4/5 — A bug I found

*2022-02-28*

When I compare two graphs from my history,  green bean’s amount is on 200g. 
However, in the graph details, that info is back to normal.

### 3/5 — Make sure not to use another app when roasting

*2022-01-09*

So I got a phone call while roasting and guess what happened it disconnected from the Sandbox R1 unit and stopped mid roast.  If you have a old iphone or ipad to use as a stand alone device that wont get any interference then use it.  I had to finish my roast in a pan, still better than your ordinary off the shelf coffee but just okay.

## Frequently asked questions about Sandbox Smart

### What is Sandbox Smart?

Sandbox Smart is a mobile application designed to connect with and control the Sandbox Smart R1 smart home coffee bean roaster via Bluetooth. It allows users to select pre-programmed roast levels or manually adjust various roasting parameters.

### Does Sandbox Smart have ads?

No, Sandbox Smart does not contain advertisements. The app is free to download and use, with optional in-app purchases available for additional features or content.

### What devices does Sandbox Smart support?

Sandbox Smart is available for iPhone, iPad, and iPod devices. It is designed to work with the Sandbox Smart R1 coffee roaster.

### What is the age rating for Sandbox Smart?

Sandbox Smart has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### How often is Sandbox Smart updated?

The latest version of Sandbox Smart is 3.8.9, which was last updated on October 27, 2025. This suggests the app receives regular updates to improve functionality and compatibility.

### What are the subscription options for Sandbox Smart?

Sandbox Smart offers a VIP subscription for $4.99 per month (P1M). This subscription likely unlocks premium features or content within the app.

### What are the manual roasting controls in Sandbox Smart?

Sandbox Smart allows manual adjustment of key roasting parameters, including heat, fan speed, and drum rotation. This gives users fine-grained control over the roasting process to create unique coffee flavors.

### What is the user rating for Sandbox Smart?

Sandbox Smart currently has a rating of 2.6 stars from 7 ratings. This indicates a mixed reception from users, with potential areas for improvement.

## Version history (last 5 releases)

### 3.9.1 — 2026-06-02

The cloud service has been discontinued. Please download the Sandbox Smart Pro App instead.

### 3.9.0 — 2026-04-14

- Pro version announcement

### 3.8.9 — 2025-10-27

Fix save profile procedure issue

### 3.8.8 — 2025-07-15

Manual mode multi-language adjustment

### 3.8.7 — 2025-02-24

Add warm-up button in  full manual mode
Multilingual update

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## More apps by Sandbox Smart Technology Co., Ltd.

- [Sandbox Smart Pro](https://appshunter.io/ios/app/sandbox-smart-pro/id6754301332)

All apps by Sandbox Smart Technology Co., Ltd.: https://appshunter.io/developer/1522236498

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*