Flame Boss vs Combustion Inc.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flame Boss
Remotely monitor and control your cooking with a Wi-Fi smoker controller or thermometer. View temperature graphs, adjust settings, and receive text alerts for your pit and meat. Share your progress and save cook details for future reference.
- Remote temperature monitoring
- Adjust set temperature
- Text alerts for pit/meat
- View temperature graphs
- Share cooks on social media
- Automatic warming temperature
- Save cook notes and titles
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The Flame Boss® app allows you to remotely monitor and control your cooks with any Flame Boss Wi-Fi smoker controller or thermometer. You can: -View temperature graphs of current and past cooks -Change the set temperature for your pit -Text alert configuration -Enable or disable pit and meat alerts -Share your cooks on Facebook and Twitter -Enable an automatic warming temp when the finished meat temp is reached -Add, edit and update personal cook titles and notes for future reference -Change device pin and remove shared access with other users -Make cooks private The Flame Boss app also works with the web-based application available at MyFlameBoss.com.
Combustion Inc.
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.
- 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
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See (and graph!) exact temperatures throughout your food while it cooks. Know exactly when it will be done. View and graph core, surface, and ambient temps in real time. The wireless Predictive Thermometer was built to answer a simple but important question: when will my food be ready? Combustion’s Predictive Engine™ estimates exactly when that will be, using the data from 8 onboard sensors (the most of any cooking thermometer). Important firmware updates! The Combustion App includes the latest firmware updates for Predictive Thermometers and other Combustion Accessories including Boosters, Displays, Giant Grill Gauges and other forthcoming products. Firmware updates improve core functions including time-to-cook predictions, longer battery life, and can add new features. MeatNet™ Cloud – for functionally unlimited range! Use with WiFi Accessories or with a second mobile device to stream your cook data to the cloud. Watch your cook in real-time from anywhere with internet access. Live Activity/Apple Watch support. The Combustion App works with iOS as well as iPadOS and MacOS (M1 or newer). Includes Live Activity (Dynamic Island) display feature so you can watch key temps even when the app is in the background. So handy! Combustion App Features: – Set target temp: so that your food comes out just the way you want it – See predictions in relative time (“ready in” countdown) or in absolute “clock” time – See key temps in real-time: including TrueCore®, TrueSurface™, TrueAmbient™ – Get notifications for important cooking events with advanced alerts (ready alarm, 5-minute warning, disconnect alert, low battery notification) – Set SafeCook™ parameters (integrated food-safety) – Know exactly when your food is safe to eat – Set-up WiFi connectivity for Combustion WiFi accessories – Graph your food’s temperatures in real-time! – See (and graph) temperatures from all 8 sensors with Advanced Cooking Mode – Enables multi-node MeatNet™: use any combination of Combustion accessories to extend Bluetooth signal range + strength – Use with or without Combustion Display – Export cooking data - to fine-tune your technique – Update firmware: get better performance and new features for Combustion tools – Works with most cooking appliances and cookware types – Works with all kinds of foods and most cooking appliances - BBQ smokers, ovens, ranges, grills, and more - indoors and out. – Works with or without WiFi Get more consistent results with all your favorite foods: steak, pork chops, brisket, pork shoulder, roasts, turkey, whole chicken, ribs, fish, bread, and more. Advanced graphing on the Combustion App helps you visualize exactly how heat moves through your food. You will understand the relationship between ambient cook temps and surface temps. And how surface temps really control how long things take – and how evenly food cooks. It may shock you to find out the oven temp (or grill temp) you set is not the same as the food is actually experiencing! The Combustion Inc app puts all that knowledge in front of you – with instant feedback, so you’re not just cooking better, you’re also learning as you go. And learning has never been so delicious.
Screenshots
Verdict
Flame Boss and Combustion Inc. both sit at 4.6 stars, but that hides the real split: 76% of Combustion Inc.'s written reviews are positive against 36% of Flame Boss's. Flame Boss's advantage is update cadence (every 2 weeks vs every 6 weeks) and device support (4 vs 2). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for Flame Boss against 4.7 for Combustion Inc.. Both are backed by a comparable volume of ratings — 2.4K and 1.9K respectively. Written reviews are what separate them: 36% of Flame Boss's written reviews are positive against 76% of Combustion Inc.'s.
Flame Boss ships an update every 2 weeks, Combustion Inc. every 6 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | Flame Boss | Combustion Inc. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (2.4K ratings) | 4.7 (1.9K ratings) — better |
| Positive reviews | 36.3% of reviews | 76.3% of reviews — better |
| Number of ratings | 2.4K — better | 1.9K |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 106 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Collins Research Inc. | Combustion Inc. |
Customer experience
Flame Boss
Combustion Inc.
User reviews
Flame Boss
From 2.4K App Store ratingsWhat we love
- 🚀 Excellent temperature control
- 🚀 Seamless remote monitoring
- 👍 Great customer service
- 🚀 Reliable performance
Room to improve
- 🐛 Connectivity issues after updates
- 🐛 Unstable app performance
- 🐛 Unreliable notifications
- 🐛 Difficulty setting up and connecting
Combustion Inc.
From 1.9K App Store ratingsWhat we love
- 🚀 Fantastic product
- 👍 Easy to use
- 🔍 Accurate temperature readings
- 💡 Predictive cooking feature
- 🚀 Seamless app experience
Room to improve
- 🐛 Connectivity issues
- 🔋 Battery life problems
- 🐛 Unreliable performance
- 🐛 Sync and pairing problems
- 🐛 App bugs and glitches
Bugs and requests
Flame Boss
Reported bugs
4 issues- App freezes and loses connection
- Inability to update temperatures and settings
- Incorrect temperature readings
- Failure to save cook history
Requested features
4 requests- Ability to pause/resume cooks
- Improved app UI/UX
- Faster load times
- More customization options
Combustion Inc.
Reported bugs
5 issues- Thermometer disconnects during use
- App unable to stop timer
- Inaccurate temperature readings
- App unable to find device
- Firmware update issues
Requested features
5 requests- Cooking history and logging
- Live status widget
- Apple Watch and Dynamic Island support
- Ambient temperature alerts
- Customizable probe labeling
In-app purchases
Flame Boss
No in-app purchases
Combustion Inc.
No in-app purchases









