# Combustion Inc. vs Crustello

The clearest difference is review sentiment: Combustion Inc. at 76% against Crustello's 0%. Combustion Inc. also leads on rating (4.7 vs 1.3) and ratings volume (1.9K vs 4). Crustello's advantage is update cadence (every 2 weeks vs every 6 weeks). 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.

Combustion Inc. holds the better App Store score, 4.7 against 1.3. That said, the two scores are not equally well evidenced: Combustion Inc. has 1.9K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 76% of Combustion Inc.'s written reviews are positive against 0% of Crustello's.

Combustion Inc. ships an update every 6 weeks, Crustello every 2 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Combustion Inc. | Crustello |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/combustion-inc/id1658858290/reviews)** | [1.3 (4 ratings)](https://appshunter.io/ios/app/crustello/id6751847958/reviews) |
| Number of ratings | **1.9K** | 4 |
| Positive reviews | **76.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 132 MB | 19 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Combustion Inc.](https://appshunter.io/developer/1588334920) | [RaceBox Motorsport Llc](https://appshunter.io/developer/1521988791) |

## What reviewers say

### Combustion Inc.

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

This app uses a wireless thermometer and a predictive engine to estimate exactly when your food will be ready. It graphs core, surface, and ambient temperatures in real-time, providing notifications for important cooking events and food safety parameters.

**Highlights:** Predictive cooking time estimates, Real-time core, surface, and ambient temperature graphing, Customizable target temperature settings, Advanced cooking alerts and notifications, Food safety parameter integration, Remote monitoring via MeatNet™ Cloud, Firmware updates for accessories

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


### Crustello

[App page](https://appshunter.io/ios/app/crustello/id6751847958)

This app helps bakers perfect their dough and sourdough starters by monitoring fermentation with real-time data, smart alerts, and historical analysis. It works with companion hardware to track rise, temperature, and activity, making baking more predictable and delicious.

**Highlights:** Track fermentation with real-time data, Receive smart alerts for peak rise and temperature, Monitor sourdough starter activity and feeding schedules, Log and analyze past baking sessions, Compare fermentation graphs for technique refinement, Utilize a smart calculator for precise baking plans, Connect and manage multiple sensors remotely

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

**In-app purchases:** none


## Frequently asked questions

### Is Combustion Inc. free?

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

### Is Crustello free?

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

### Which has better reviews, Combustion Inc. or Crustello?

Combustion Inc. is rated higher. Combustion Inc. averages 4.7 out of 5 from 1.9K ratings, while Crustello averages 1.3 from 4 ratings.

### Do Combustion Inc. or Crustello have ads?

Neither Combustion Inc. nor Crustello shows ads.

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

Combustion Inc. ships an update every 6 weeks, and Crustello every 2 weeks. Most recently, Combustion Inc. was updated on November 7, 2026 and Crustello on October 30, 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.*