Comparison

Cooking Ex Optimizer vs Curd

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Cooking Ex Optimizer

Features
Read full description

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.

About

Curd

Features
Read full description

Every number a home cheesemaker has to get right — in one offline app, with every formula traced to a named source. Curd does the math that stands between you and a ruined batch, then carries the batch into the cave with a flip-and-wax aging log. No subscription. No account. No internet required. THE CALCULATORS ‒ Yield — enter your milk volume and cheese style, get the cheese weight to expect. Hard cheeses use the Van Slyke formula (fat + casein + moisture) when you know your milk; everyone else gets style-typical yields (cheddar, gouda, brie, mozzarella, chèvre and more). ‒ Rennet — milk volume and rennet form (liquid single or double strength, tablet, or IMCU rating) → exact drops, milliliters, or tablet fraction, with the standard dilution note. ‒ Culture — scale a direct-set (DVI) packet rated for any number of gallons down to your pot, mesophilic or thermophilic. ‒ Calcium chloride — the fix for store-bought milk that won't set: the right dose per gallon, and the warning never to use it for mozzarella. ‒ Brine — target salinity in percent or salometer degrees → salt weight and water, anchored to the 26.4%-salt saturated-brine reference. ‒ Mozzarella acid — citric acid per gallon to hit the pH 5.2 stretch window for 30-minute mozzarella. THE AGING LOG Log a make — style, milk volume (carried straight from the yield calc), and date — and Curd computes the ready-by date and the target temperature and humidity band for that style. A per-style flip / turn / wax / wash schedule with optional reminders means you never forget to turn the gouda. A glanceable cave view shows what's aging and when each wheel is ready. EVERY NUMBER HAS A SOURCE Curd doesn't invent values. Yield, dosing, brine, and aging numbers are drawn from Gianaclis Caldwell (Mastering Basic & Artisan Cheesemaking), Ricki Carroll (Home Cheese Making), the Van Slyke yield formula, and the Cheese Science Toolkit — each cited in the app. BUILT RIGHT ‒ Works fully offline — your kitchen, your data, no cloud. ‒ Metric and US units throughout (liters/gallons, grams/ounces, °C/°F, % and °SAL). ‒ Dark theme, full Dynamic Type, and VoiceOver labels on every result. ‒ Universal — iPhone and iPad. Curd is a reference tool for home cheesemakers. It shows published formulas and your own inputs; it is not a substitute for your own judgment, a calibrated thermometer, or food-safety guidance from your local authority.

Screenshots

Cooking Ex Optimizer3 screens
Curd4 screens

Verdict

The call

The clearest difference is price: Curd at Free against Cooking Ex Optimizer's $1.99. Curd also leads on update cadence (monthly vs every 9 months). Cooking Ex Optimizer's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 17.0). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Curd is free to download; Cooking Ex Optimizer costs $1.99 up front. Curd sells 1 one-off in-app purchase. Cooking Ex Optimizer asks for nothing beyond the download.

UpkeepUpdate frequency

Cooking Ex Optimizer ships an update every 9 months, Curd monthly. Both last shipped on October 19, 2026.

Scorecard4 real differences Β· 2 level
Cooking Ex Optimizer versus Curd: the parameters behind the verdict, then further details
ParameterCooking Ex OptimizerCurd
Price$1.99Free β€” better
Update frequencyEvery 9 monthsMonthly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 β€” better17.0
Further details β€” not scored
Size3 MB1 MB
Age rating4+4+
DeveloperMorten PunnerudRoman Kopaliani

In-app purchases

None

Cooking Ex Optimizer

No in-app purchases

1 purchases

Curd

One-time1
  • Curd Unlock (lifetime)$6.99

Questions

Is Cooking Ex Optimizer free?
Cooking Ex Optimizer costs $1.99, with no in-app purchases.
Is Curd free?
Curd is free to download, with in-app purchases available.
Do Cooking Ex Optimizer or Curd have ads?
Neither Cooking Ex Optimizer nor Curd shows ads.
Which is updated more often, Cooking Ex Optimizer or Curd?
Cooking Ex Optimizer ships an update every 9 months, and Curd monthly. Most recently, Cooking Ex Optimizer was updated on October 19, 2026 and Curd on October 19, 2026.

Other comparisons