When making changes to an app, you often need to share copies of your changed
app with a small circle of users before letting these changes go live for all
users. Read this tip to learn how this is done.
PDF reports created with Calcapp will only become truly customizable when
Calcapp 4 fully arrives. In the meantime, use third-party services through
Zapier to enable custom-designed PDF documents today.
Private apps by default don't include the signed-in user's e-mail address in
reports. You can include this information using a simple formula. This tip
also explains how to include information on the tags associated with a user.
Converting values from one measurement system to another using plain formulas
is tedious and error-prone. Use the CONVERT formula function instead to
perform these conversions. It supports more than one hundred different units.
Superscripts and subscripts appear above and below the baseline of the text,
respectively, and are useful when writing mathematical formulas. Use them
today in Calcapp Creator by copying and pasting the characters in this post.
Calcapp supports making fields required, so that your users can't move on to
the next panel or submit reports before your forms have been properly filled
out. This tip walks you through the steps you need to take to make fields
What if you want to limit the number of characters users can type in a text
field? This tip uses validation to alert your users if they type too much text
and show you how to include only a limited number of text field characters in
Reports sent by your users normally contain all fields of your app or only the
fields of the current panel. This tip demonstrates how you can select
precisely what fields to include, which cuts down on the size of the reports.
To get the number of hours, minutes or seconds between two dates, subtract one
date from the other and use the HOUR, MINUTE or SECOND formula functions.
HOUR won't return a number greater than 23 and MINUTE and SECOND won't return
a number greater than 59. Read on to learn how to fix this.
Reset buttons enable users to conveniently wipe out all data entered in an
app, but pressing them accidentally can ruin days of data entry. This tip
explores a number of techniques for making it harder to press them
accidentally, including hiding them unless the user confirms that they should
Date and time fields can be instructed to display a default value that appears
when a user opens your app. You need to use formulas to set these values. This
tip contains a number of useful such formulas, including one that selects a
date seven days after the current date as the initial value.
Use the IF formula function to make logical comparisons when calculating
values. To use multiple criteria, use the logical functions AND, OR and NOT.
To make formulas read better, consider using Calcapp's &&, || and ! operators
How do you convey that a field is 62 percent invalid? By assigning a
background color to the field that gets more intense the less valid the field
is! Read this tip to learn how to use the new BRIGHTEN function to achieve
You can use formulas to calculate the initial values of input fields, which
are the values displayed before your user changes them. These formulas
typically take into account the values entered on a previous panel.
There is no built-in way to display a time duration in your apps, but you can
easily use formulas to achieve the same result. Read this tip to learn how to
display time durations like "1:05", indicating that one hour and five minutes
Spreadsheet formulas usually use position-based references like A2 to refer to
cells while Calcapp formulas use names. Rewriting formulas manually when
you're converting a spreadsheet to an app is tedious and error-prone. This
post explains how you can make Calcapp Creator do the work for you.
By maintaining multiple versions of your app, you can refer back to a prior
incarnation at a later date. It also enables you to share your progress on a
new app version with beta testers, without disturbing the main version used by
your regular users. Learn to duplicate your app to access these features.
You can use data validation to present an error message alongside an output
number field. Sometimes you want to display the message in the field itself,
though. This blog post shows you two ways to accomplish this.
Making hidden fields visible can be useful when you're developing your app.
Add a "debug mode" switch to your first screen and tie the Visible property of
all hidden fields to this debug switch to easily make all hidden fields
visible. Then, hide the switch before you share the app.