# Cauldryn

> Smart mug for precise, all-day beverage temperature control. (iPhone/iPad app by Sinospec.)

- Source: https://appshunter.io/ios/app/cauldryn/id1385398413 (this page in markdown: same URL + `.md`)
- Developer: [Sinospec](https://appshunter.io/developer/1385398412)
- Category: Food & Drink
- Price: Free
- Rating: 1.30/5 from 4 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 22 MB
- Languages: American English
- Released: 2018-06-09
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cauldryn/id1385398413/reviews.md

## What is Cauldryn?

With the Cauldryn mug, you can select any temperature you want between room temp and boiling.
With its battery powered heat control module, Cauldryn has the power to keep your desired beverage at your ideal temp all day! You no longer have to worry about rushing through your cup of coffee or using the microwave. It's the perfect tool for anyone on the go or relaxing at home with the perfect temperature coffee, tea or desired beverage.
Discover all the possibilities from brewing, portable baby bottle warming, cooking soup, water sanitation and more. What will you use your Cauldryn for?

## Key features

- Select any temperature between room temp and boiling
- Battery-powered heat control
- Maintain ideal beverage temperature all day
- Portable for on-the-go use
- Versatile for brewing, warming, cooking, and sanitation

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/cauldryn/id1385398413/reviews.md

### 1/5 — Terrible

*2024-12-29*

The app doesn’t even work smh

### 2/5 — Worthless and unmaintained app

*2024-05-11*

Imagine you have a “smart thermos” that can heat itself on a stand while you go and do some other things around your house or office. Does the app tell you what is the current temperatures of the liquid so you can tell when you might be interested in drinking? No. Does the app tell you when the liquid reaches the desired temperature? No! Do the preset settings automatically adjust the app’s manual control? No!! What does the app do? As far as I can tell, the only thing the app may be good for is to allow you to remotely set the temperature target without having the touch the container, but you have to do that anyway when you place it on the stand. Also, the links for the user’s manual and customer support bring up network certificate errors since the app is using untrusted Cloudflare certs. You can still get to the website locations if you accept that you are okay with using these untrusted certs, but why should any of Cauldryn’s users have to put up with that? Improve the app!

### 1/5 — Kindergarten

*2023-12-31*

This app must have been written by a kindergartner. Most of it doesn’t even work. It is worthless.

### 1/5 — Too basic too buggy

*2021-08-05*

This app is buggy it jumps around on the temp and times out when you are setting the temp to jump to the next screen.
The developers really need to update it.  This is 100 cup and deserves a better app.  My teenager can make a better more user friendly app.

### 3/5 — Primitive App

*2020-06-03*

Some selections take effect as soon as you go to that screen (black tea starts brewing) and other work only as long as you apply and maintain Bluetooth connection (setting desired drink temperature. The mug keeps defaulting back to Celsius, which may also be related to App. No complaints about few features, but they should work consistently and reliably. Please revisit this App so we can actually enjoy our mugs.

### 1/5 — Disaster

*2020-03-17*

Took it out of the box yesterday. Read the installation details and followed them. Six hours later found that the battery wouldn’t charge. Then tried direct connect to the mug with the heater bottom and that didn’t work either. It looks good on the outside but nothing works.

### 2/5 — Meh

*2020-02-07*

Was hoping this could help track battery level, but it doesn’t have that functionality. Temperature setting is fine but the app seems to confuse Celsius and Fahrenheit. All in all a very primitive app for a mug this price.

### 3/5 — Eh

*2019-04-11*

Functionally does what you want but the experience is lacking in feed back, it doesn’t do anything to inform me that I did gets to the cup

### 3/5 — Needs update badly

*2019-04-10*

I understand this a utilitarian device. It’s for the rugged person and not aimed for the same market as its competitors. However, they should at least take some cues from them. The app isn’t formatted for the new phones. The Bluetooth looses connection. The UI is something reminiscent of a first generation App Store program. It’s great when it works, but I think that it can use some much needed polish.

### 1/5 — Connects sporadically.

*2019-03-02*

While I love my Cauldryn, the app reminds me of how poorly Bluetooth connected when it was introduced years ago.
 Nope it’s not my iPhone or my iPad. I have several degrees in tech. I know how to boot reboot and tweak. 
    It takes less time to reach over to the Cauldryn and manually adjust the temp.
   The app is useless, don’t waste your time.

## Frequently asked questions about Cauldryn

### What is the main function of Cauldryn?

Cauldryn allows you to set and maintain your beverage at any desired temperature between room temperature and boiling. Its battery-powered module ensures your drink stays at your ideal warmth all day long.

### What devices does Cauldryn support?

Cauldryn is designed to work with iPhones, iPads, and iPods. It is compatible with Apple's mobile operating system.

### What is the age rating for Cauldryn?

Cauldryn has an age rating of 4+. This indicates it is suitable for users aged four and above.

### How often is Cauldryn updated?

The latest version of Cauldryn, 1.3.6, was last updated on April 2, 2022. Information on its update frequency beyond this is not provided.

### What are some of the unique uses for Cauldryn?

Beyond keeping drinks warm, Cauldryn can be used for brewing, portable baby bottle warming, cooking soup, and water sanitation. It offers a wide range of culinary and practical applications.

### What is the user rating for Cauldryn?

Cauldryn currently has a rating of 1.3 stars based on 4 user ratings. This suggests a low level of user satisfaction.

### Does Cauldryn have ads?

No, Cauldryn does not contain advertisements. The app is free to download and use without any ad interruptions.

### What is the price of Cauldryn?

Cauldryn is available for free. There are no costs associated with downloading or using the application.

## Version history (last 5 releases)

### 1.3.6 — 2022-04-02

minor fixes

### 1.3.5 — 2021-09-05

- App Icon & screenshots changed

### 1.3.4 — 2021-08-30

Changed the UI

### 1.3.3 — 2019-04-30

updated with new design and performance enhancement.

### 1.3.2 — 2019-01-02

- minor fixes.

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## More apps by Sinospec

- [Fishlogger Digital Scale](https://appshunter.io/ios/app/fishlogger-digital-scale/id1399941019)
- [HotKup-Temperature Control Mug](https://appshunter.io/ios/app/hotkup-temperature-control-mug/id1624277809)

All apps by Sinospec: https://appshunter.io/developer/1385398412

## Related topics

[cauldryn](https://appshunter.io/ios/topics/cauldryn)

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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 2026-06-01.*