Comparison

Dr. Thump Pro vs RipeMelon

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

Head to head
About

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.

Highlights
  • Predicts watermelon sweetness
  • Uses sound and size analysis
  • Displays sweetness on brix scale
  • Helps avoid bitter watermelons
  • Includes tutorial video
Features
Read full description

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.

About

RipeMelon

Read full description

Never buy a bad melon again! RipeMelon uses your iPhone’s camera and on‑device intelligence to instantly tell you whether any watermelon is at peak sweetness—no guesswork, no sliced‑open surprises. KEY FEATURES - Point & Scan Simply frame your melon in the green reticle and tap “Scan” to get an immediate ripeness score. - Accurate Ripeness Rating Our color‑coded bar clearly shows whether your melon is underripe, perfect‑ripeness, or past its peak. - Built‑In Melon Guide Learn proven tips—like rind patterns, field spots, and weight cues—to spot the best melons with or without your phone. - Scan History & Favorites Save your top‑scored melons for future reference and track your tasting adventures over time. WHY RIPEMELON? Whether you’re at the grocery store, farmers market, or roadside stand, RipeMelon takes the guesswork out of picking watermelons. Spend less time choosing and more time enjoying perfectly sweet, juicy fruit every single time. Download RipeMelon today and make every slice count!

Screenshots

Dr. Thump Pro4 screens
RipeMelon4 screens

Verdict

The call

The clearest difference is price: RipeMelon at Free against Dr. Thump Pro's $1.99. Dr. Thump Pro's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

RipeMelon is free to download; Dr. Thump Pro costs $1.99 up front. RipeMelon sells 1 one-off in-app purchase. Dr. Thump Pro asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Dr. Thump Pro versus RipeMelon: the parameters behind the verdict, then further details
ParameterDr. Thump ProRipeMelon
Price$1.99Free — better
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 39 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhoneiPhone
Requires iOS17.617.0 — better
Further details — not scored
Size40 MB20 MB
Age rating4+4+
DeveloperKevin CorneliusYahor Hreben

In-app purchases

None

Dr. Thump Pro

No in-app purchases

1 purchases

RipeMelon

One-time1
  • 3 Watermelon Scans$1.99

Questions

Is Dr. Thump Pro free?
Dr. Thump Pro costs $1.99, with no in-app purchases.
Is RipeMelon free?
RipeMelon is free to download, with in-app purchases available.
Do Dr. Thump Pro or RipeMelon have ads?
Neither Dr. Thump Pro nor RipeMelon shows ads.

Other comparisons