Comparison

Mamma Balance vs UnitConverter byNSDev

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

Head to head
About

Mamma Balance

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"MammaBalance" measures a balance of a subject's breast. 【Usage】 Step1. Prepare a photograph of a subject's upper-body. Step2. Move the red marks to a center of the clavicle, a pit of the stomach and both side of nipples. Step3. Tap the calculation button, and then the results are displayed. γ€€Angle : the angle between each nipple and the line which is going through β‘  and β‘£ γ€€CommonArea : the common area of two triangles γ€€Area : the area of triangles which are made by β‘ β‘‘'β‘£' and β‘ β‘’β‘£' γ€€Ratio : the percentage of the common area in each areas γ€€γ€€γ€€β‘  : a center of clavicle γ€€γ€€γ€€β‘‘ : left side nipple γ€€γ€€γ€€β‘‘' : reflection point of β‘‘ γ€€γ€€γ€€β‘’ : right side nipple γ€€γ€€γ€€β‘£ : a pit of stomach γ€€γ€€γ€€β‘£' : a foot of a perpendicular from β‘‘' (or β‘’) to the line going through β‘  and β‘£ 【Topic】 - "MammaBalance" has the camera with a spirit level. Therefore you can get a straight photograph. - You can save the result as a JPEG format. 【Caution】 "MammaBalance" is not the one to diagnose any illness.

About

UnitConverter byNSDev

This tool converts between 26 different types of units, displaying conversion rates and allowing you to specify decimal places. It supports a vast array of units across categories like length, mass, volume, and more.

Highlights
  • Converts 26 types of units
  • Displays conversion rates
  • Customizable decimal places
  • Supports numerous units in various categories
  • User-submitted unit requests
Features
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Tool to convert each of 26 types of units. When you select a unit of value that you enter, you create a table to calculate all the other units. It also displays the conversion rate. You can also specify the number of decimal places. 23 units in Length 18 units in Area 31 units in Volume 15 units in Mass 5 units in Angle 4 units in Temperature 7 units in Time 3 units in Frequency 5 units in Force 17 units in Pressure 6 units in Energy 6 units in Power rate 13 units in Speed 14 units in Acceleration 2 units in Dynamic viscosity 4 units in Kinematic viscosity 3 units in Magnetic flux density 2 units in Magnetic flux 7 units in Luminance 4 units in Illuminance 3 units in Radiation - source activity 2 units in Radiation - absorbed dose 2 units in Radiation - equivalent dose 2 units in Radiation - exposure 7 units in Infomation 7 units in Resolution Because we want to support units around the world, We will wait for the name and unit conversion information. Please enter your review.

Screenshots

Mamma Balance4 screens
UnitConverter byNSDev3 screens

Verdict

The call

The clearest difference is price: UnitConverter byNSDev at Free against Mamma Balance's $9.99. On update cadence, ads, in-app purchases 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

UnitConverter byNSDev is free to download; Mamma Balance costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mamma Balance ships an update every 6 months, UnitConverter byNSDev every 5 months. The most recent releases landed on August 15, 2026 and September 17, 2026 respectively.

Scorecard1 real difference Β· 7 level
Mamma Balance versus UnitConverter byNSDev: the parameters behind the verdict, then further details
ParameterMamma BalanceUnitConverter byNSDev
Price$9.99Free β€” better
Positive reviewsβ€”20.0% of reviews
Update frequencyEvery 6 monthsEvery 5 months β€” better
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 β€” better15.6
Further details β€” not scored
Size4 MB4 MB
Age rating17+4+
DeveloperMedic Engineering K.K.NIHON SYSTEM DEVELOPER CORPORATION

In-app purchases

None

Mamma Balance

No in-app purchases

None

UnitConverter byNSDev

No in-app purchases

Questions

Is Mamma Balance free?
Mamma Balance costs $9.99, with no in-app purchases.
Is UnitConverter byNSDev free?
UnitConverter byNSDev is free to download, with no in-app purchases.
Do Mamma Balance or UnitConverter byNSDev have ads?
Neither Mamma Balance nor UnitConverter byNSDev shows ads.
Which is updated more often, Mamma Balance or UnitConverter byNSDev?
Mamma Balance ships an update every 6 months, and UnitConverter byNSDev every 5 months. Most recently, Mamma Balance was updated on August 15, 2026 and UnitConverter byNSDev on September 17, 2026.

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