iChef ET vs Cooking Ex Optimizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iChef ET
Monitor your food's internal temperature remotely while cooking on a grill or in an oven. Receive alerts when your meal reaches the desired doneness, with estimated cooking times calculated for you. Enjoy more precise cooking and delicious results.
- Remote temperature monitoring
- Wi-Fi and cloud connectivity
- Customizable doneness presets
- Estimated cooking time calculation
- Doneness alerts
- Precise cooking control
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iChef ET-736 by Maverick delivers a great roasting or grilling experience. The thermometer tracks the internal temperature of the food cooking in your oven or on the grill. It then transmits the temperatures over WIFI using your home router or through the internet using the cloud to your iOS device where the iChef app is running. The iChef app monitors your food’s cooking progress and alerts you when your food is done. You set a temperature for your food. You can select from preset temperatures for all types of meats calibrated for doneness or use your own. While the food is cooking, the app calculates the estimated cooking time. Once complete, the app alerts you. Because iChef communicates over WIFI and the cloud, you can get reliably get notified nearly anywhere. Overall, iChef delivers a complete cooking experience. Using it will make your cooking more precise and help you create even more delicious meals! Note: This app requires the Maverick model ET-736 Wifi iChef Roasting Thermometer, available on Amazon.
Cooking Ex Optimizer
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Cooking Ex Optimizer is a kitchen companion built around live temperature prediction. Track every temperature at once - your steak, your oven, your sous vide bath - and the app projects when each one will reach its target. No more guessing. Tap Set to log a temperature. Tap Finish to lock in a target. Watch the countdown adjust as new readings come in. The chart shows your readings and the projected curve, with a green indicator that moves along the projection so you always know where things stand right now. Multiple tracks side by side Each track has its own name, target, and timeline. A summary strip under the page selector shows live readings and countdowns for every track at once - even when you are focused on a different one - so you can keep tabs on everything from a single screen. Tap a pill to switch. Smart projection The app fits a curve through your readings and extrapolates. The countdown ticks down in real time as new data refines the model. Once a target is reached, the display flips to a checkmark and counts time since reached. Hands-on chart Drag across the chart to inspect any time and temperature. Pinch to zoom the time axis. Tap a reading to edit it. Use plus to extend the forecast window further into the future, minus to bring the last reading back to the center. Camera capture Point your camera at a thermometer or oven display and the app reads the digits using the device on-board OCR, then logs them automatically. Beyond cooking Cooking Ex Optimizer keeps the original Experiment Optimizer toolkit. Define variables (binary or value range), get adaptive suggestions for the next experiment to run, record outcomes, and review live model confidence with clear explanations of the likely formulas behind your data. Export and import everything as JSON for collaboration. Built for cooks, researchers, and tinkerers who want one app for measurement, prediction, and learning. Works offline. No accounts. No tracking. No subscriptions.
Screenshots
Verdict
The clearest difference is price: iChef ET at Free against Cooking Ex Optimizer's $1.99. iChef ET also leads on update cadence (fortnightly vs every 9 months) and iOS requirement (10.0 vs 15.6). On 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
iChef ET is free to download; Cooking Ex Optimizer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iChef ET ships an update fortnightly, Cooking Ex Optimizer every 9 months. The most recent releases landed on September 19, 2026 and September 2, 2026 respectively.
| Parameter | iChef ET | Cooking Ex Optimizer |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 1.5 (8 ratings) — better | — |
| Positive reviews | 12.5% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Fortnightly — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 101 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Maverick Industries, Inc. | Morten Punnerud |
In-app purchases
iChef ET
No in-app purchases
Cooking Ex Optimizer
No in-app purchases







