Bellfit at Mac App Store analyse

App power index: 100 (based on ranks around App Stores today)
Education Productivity Productivity Education
Developer: JPG Malthouse
Price: 0 free
Current version: 1.2.4, last update: 1 year ago
First release : 27 Mar 2011
App size: 0 Bytes
4.0 ( 0 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


This program fits and plots bell shaped pH data to the equation:-

kobs = k/(1+[H]/K2+K1/[H])

Results can be printed, saved as a text document or copied and pasted into other applications such as Word.If your data is in another program such as excel simply save it as a csv file. If you then go to the File menu item you can select “Open csv file” and you will be able to input data from the csv file.

When "Fit" is selected a linear reciprocal plot is used to make the initial estimates of kobs and the pKa. These values of kobs and pKa are then used as the initial estimates to fit the experimental data using an iterative, non linear least-squares regression program.

When "Fit with estimates" is selected you must input the initial estimates of kobs and the pKa. The experimental data is then fitted using an iterative, non linear least-squares regression program.

Instructions and test data are provided.
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Available in countries
Country Price
Canada free
China 25 CNY
France free
Germany free
Italy free
Netherlands free
Portugal 4.49 EUR
Spain free
Poland 4.49 EUR
UK free
India 299 INR
Poland 18.99 PLN
Russia 299 RUB
Turkey free
USA free
Korea, Republic Of 4.39 USD
Ukraine 3.99 USD
Available for devices
MacDesktop,

Latest version Bellfit: 1.2.4

The graphics functionality lost when using the Big Sur or higher operating system has been restored.

Apps Changes History:
  • New App Version 3.99 -> 0