Cook Units vs Dr. Thump Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cook Units
This app helps you convert cooking measurements between weight and volume, adjust recipe servings, and manage your recipes. It supports over 1,100 ingredients and allows for easy sharing of your culinary creations.
- Weight to volume conversions
- Recipe serving adjustment
- Ingredient database with images
- Recipe creation and management
- Recipe sharing
- Multi-language support
- Light/dark mode and orientation support
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You need 200g of sugar but you don’t have a scale—just a measuring cup? You need 1.5 tbsp of baking powder, but you only have a scale? You need to know how many strawberries you can expect in a 250g container? You need to cook for 7 people, but your recipe is for 2 servings? You need to mark your recipe ingredients as you’re cooking? You need to share your favorite recipes with friends? We got you covered! Cook Units is a measure converter for cooking ingredients designed with usability in a kitchen context. It features a growing set of 1,220+ ingredients with images, and a recipe manager. It works great in light or dark mode, portrait/landscape mode, and in iPad’s Split View/Slide Over layouts. The app can switch between 5 languages (English, French, Japanese, Italian, and Spanish) without changing the language of the device. CONVERT QUANTITIES Conversions of measures can be carried out between weight and volume (e.g. grams to/from cups) and displayed with fractions. Units of measurement automatically adjust to the order of magnitude of the quantities being measured. For example: 8 tbsp (tablespoons) will also show as ½ c (cup,) and 1,000 g (grams) will be displayed as 1 kg (kilogram.) While calculations are exact between weight units or volume units and displayed with up to 2 decimals, they are approximated across weight/volume—depending on an average volumetric mass for the measured ingredient. Conversions also make reasonable approximations in order to display closest fractions, when applicable. CREATE / SHARE / RECEIVE RECIPES Ingredients are browsable as a cover flow, grid, or searchable tagged list. Measured ingredients can be assembled into a recipe with an associated number of servings. Recipes live in iCloud when your account is connected, and so they will appear on any device connected to the same account. Recipes can be associated with notes, locked to avoid mishaps, and shared via Messages, email, AirDrop, etc. in (filtered) bulk or individually. You can also send them to yourself to create backups. ENJOY COOKING! Adjust the number of servings for your recipe and the quantities will automatically resize accordingly with appropriate measuring units. Mark the ingredients in your recipes as you are cooking or shopping for groceries. Just tap a recipe ingredient to see its equivalent measures in weight and volume on the fly. Happy Cooking!
Dr. Thump Pro
This app analyzes the sound of thumping a watermelon, combined with its size, to predict its sweetness level on a brix scale. It aims to help users select quality watermelons and avoid bitter ones before purchasing.
- Predicts watermelon sweetness
- Uses sound and size analysis
- Displays sweetness on brix scale
- Helps avoid bitter watermelons
- Includes tutorial video
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How many times have you gone to the store, selected a watermelon, and then taken it home only to find out it was not very good? Dr. Thump Pro is an app that has been developed after years of research to take the randomness out of the process of selecting a quality watermelon of any type. By using the sound made from thumping a watermelon along with its general size, the app can predict the general level of sweetness or bitterness of the watermelon before purchase. When using the app, the sweetness or bitterness of the watermelon will be displayed using a brix scale, which is designed to measure the sugar content in fruit juices. The lower the number, the more bitter the watermelon. The higher the number, the sweeter and less bitter. A typical watermelon is a 7 on this scale. Ideally, you are looking for values of 8 and above. For anything less than a 7, we recommend putting it back as it will be bitter tasting. When using the app, watermelons can be situated in a bin or removed and tested in isolation. When thumping, you can use your knuckles or fist. For a lot of testing to save your knuckles, we recommend something hard and solid, such as a cue ball or hard plastic disk (as in a caster wheel). Whatever the object, it should not make a noise itself—such as a ringing or clanking sound—after you thump the watermelon. A tutorial video on using this app can be found here: https://youtu.be/L7y10r6bS0Q. This video can also be accessed anytime through the tutorial option in the settings menu.
Screenshots
Verdict
Cook Units and Dr. Thump Pro both sit at 5.0 stars, but that hides the real split: 100% of Dr. Thump Pro's written reviews are positive against 33% of Cook Units's. Cook Units's advantage is update cadence (every 2 weeks vs every 39 months) and chart position (#199 vs unranked). On rating, ratings volume, ads and in-app purchases 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
Cook Units costs $0.99 and Dr. Thump Pro $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Cook Units against 5.0 for Dr. Thump Pro. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews are what separate them: 33% of Cook Units's written reviews are positive against 100% of Dr. Thump Pro's.
Cook Units ships an update every 2 weeks, Dr. Thump Pro every 39 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Cook Units | Dr. Thump Pro |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 2 weeks — better | Every 39 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #199 — better | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 103 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Didier Burton | Kevin Cornelius |
Customer experience
Cook Units
Dr. Thump Pro
In-app purchases
Cook Units
No in-app purchases
Dr. Thump Pro
No in-app purchases
Questions
Is Cook Units free?
Is Dr. Thump Pro free?
Which has better reviews, Cook Units or Dr. Thump Pro?
Do Cook Units or Dr. Thump Pro have ads?
Which is updated more often, Cook Units or Dr. Thump Pro?
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