# Terra Kaffe vs Combustion Inc.

The clearest difference is review sentiment: Combustion Inc. at 76% against Terra Kaffe's 10%. Combustion Inc. also leads on rating (4.7 vs 3.1) and monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Combustion Inc. holds the better App Store score, 4.7 against 3.1. That said, the two scores are not equally well evidenced: Combustion Inc. has 1.9K ratings behind it against 52, so its average is the more settled of the two. Written reviews point the same way: 10% of Terra Kaffe's written reviews are positive against 76% of Combustion Inc.'s.

Terra Kaffe ships an update every 2 months, Combustion Inc. every 6 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Terra Kaffe | Combustion Inc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (52 ratings)](https://appshunter.io/ios/app/terra-kaffe/id1604246437/reviews) | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/combustion-inc/id1658858290/reviews)** |
| Number of ratings | 52 | **1.9K** |
| Positive reviews | 10.3% of reviews | **76.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 34 MB | 119 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Terra Kaffe](https://appshunter.io/developer/1604246439) | [Combustion Inc.](https://appshunter.io/developer/1588334920) |

## What reviewers say

### Terra Kaffe

[App page](https://appshunter.io/ios/app/terra-kaffe/id1604246437)

Control your home coffee brewing experience from your phone. Customize espresso settings, manage machine health, and create personalized drink menus. Access a world of coffee content and support.

**Highlights:** Customizable drink menus, Tailored espresso profiles, Machine health monitoring, Cleaning reminders, Shop Terra Kaffe products, Explore blog content, Customer support access

**Features:** macOS Compatibility

**In-app purchases:** none


### Combustion Inc.

[App page](https://appshunter.io/ios/app/combustion-inc/id1658858290)

Monitor and graph real-time food temperatures during cooking. Predict exactly when your meal will be ready using advanced sensor data and a predictive engine. Receive alerts for key cooking events and ensure food safety.

**Highlights:** Real-time core, surface, and ambient temperature graphing, Predictive engine for exact 'ready' time estimation, Advanced alerts for cooking events, Food safety parameter setting, Firmware updates for accessories, Cloud connectivity for remote monitoring, Live Activity and Apple Watch support

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fantastic product
- 👍 Easy to use
- 🔍 Accurate temperature readings
- 💡 Predictive cooking feature
- 🚀 Seamless app experience

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery life problems
- 🐛 Unreliable performance
- 🐛 Sync and pairing problems
- 🐛 App bugs and glitches

**Reported bugs**

- Thermometer disconnects during use
- App unable to stop timer
- Inaccurate temperature readings
- App unable to find device
- Firmware update issues

**Requested features**

- Cooking history and logging
- Live status widget
- Apple Watch and Dynamic Island support
- Ambient temperature alerts
- Customizable probe labeling


## Frequently asked questions

### Is Terra Kaffe free?

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

### Is Combustion Inc. free?

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

### Which has better reviews, Terra Kaffe or Combustion Inc.?

Combustion Inc. is rated higher. Terra Kaffe averages 3.1 out of 5 from 52 ratings, while Combustion Inc. averages 4.7 from 1.9K ratings.

### Do Terra Kaffe or Combustion Inc. have ads?

Neither Terra Kaffe nor Combustion Inc. shows ads.

### Which is updated more often, Terra Kaffe or Combustion Inc.?

Terra Kaffe ships an update every 2 months, and Combustion Inc. every 6 weeks. Most recently, Terra Kaffe was updated on October 24, 2026 and Combustion Inc. on October 27, 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.*