Combustion Inc. vs Pl3nish
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Pl3nish
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You deserve to know exactly what's in your food. Pl3nish is the recipe app built for people who care what they eat — not just calories, but the full picture. Every recipe in Pl3nish has been scientifically enriched with data most nutrition apps don't even know exists. Complete nutrition. Not just macros. Every recipe shows the full breakdown — protein, carbs, fat, fiber, sugar, 10 minerals, and 12 vitamins including B12, folate, choline, and selenium. All sourced from USDA FoodData Central, the same database nutritionists and researchers rely on. Polyphenols. The nutrients your body loves. Quercetin. Caffeic acid. Beta-carotene. Luteolin. These plant compounds are linked to everything from reduced inflammation to gut health and longevity — and almost no recipe app tracks them. Pl3nish shows you the polyphenol profile of every dish, powered by FooDB, the world's most comprehensive food compound database. Real recipes. Real ingredients. Pl3nish features 5,000 recipes covering every cuisine, dietary preference, and occasion. From 15-minute weeknight dinners to slow cooker weekend feasts, plant-based bowls to protein-packed mains — every recipe tells you exactly what goes in and exactly what you get out. Swap smarter. Want to use pine nuts instead of walnuts? Oat milk instead of cream? Pl3nish recalculates the full nutrition and polyphenol profile instantly — so you always know what your version of the recipe actually contains. Honest about what it is. Nutritional values in Pl3nish are clearly labelled as estimates. Real food varies. Cooking methods matter. Brands differ. We tell you that — because trust is more important than false precision. What makes Pl3nish different: → Full USDA nutrition data — 29 fields per recipe including rare micronutrients → Polyphenol data for 98% of recipes — 9 compound categories, top 20 compounds → Ingredient-level transparency — see exactly which ingredients contribute what → Smart swaps with instant nutrition recalculation → Works for every diet — vegan, vegetarian, gluten-free, dairy-free, omnivore → Clean, fast, beautifully simple to use Pl3nish. Because knowing what you eat is the first step to eating well.
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Verdict
The clearest difference is update cadence: Pl3nish at every 5 days against Combustion Inc.'s every 6 weeks. On price, ads, in-app purchases and device support 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.
Combustion Inc. ships an update every 6 weeks, Pl3nish every 5 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Combustion Inc. | Pl3nish |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.9K ratings) — better | — |
| Positive reviews | 76.3% of reviews | — |
| Number of ratings | 1.9K — better | — |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 119 MB | 74 MB |
| Age rating | 4+ | 17+ |
| Developer | Combustion Inc. | Pl3nish |
Bugs and requests
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
Pl3nish
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Combustion Inc.
No in-app purchases
Pl3nish
No in-app purchases
Questions
Is Combustion Inc. free?
Is Pl3nish free?
Do Combustion Inc. or Pl3nish have ads?
Which is updated more often, Combustion Inc. or Pl3nish?
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