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How much does Calca earn?

iOS app from Krueger Systems, Inc. · Productivity

ML forecast ★ 4.5 · 153 +302.6% MoM Paid

~2.5K/mo

ML revenue forecast. Calibrated against 2218 apps in this category.

Confidence band
±15%
High — many comparable apps with verified data

At a glance

What the app looks like

Live screenshots from the App Store, captured by our snapshot worker. Tap any image to enlarge.

Calca screenshot 1 Calca screenshot 2 Calca screenshot 3 Calca screenshot 4

Calca's revenue trajectory

Forecast revenue from snapshot history. Last 24 months.

Where Calca sits in Productivity

Revenue distribution of 2218 comparable apps. Calca highlighted.

Calca vs comparable apps

Revenue trajectory side-by-side. Bold = Calca, ghosted = peers.

App spec

Version
1.7.2
Last update
Oct 17, 2025
Launched
Jul 06, 2013
Min OS
15.0
Rating
4+
Price
Free
Monetization
Paid
Languages
EN

What Calca actually does (from App Store listing)

Calca is a powerful symbolic calculator that gives you instant answers as you type. It solves equations and simplifies complex expressions - it's a computer algebra system in your pocket! It's also a rich Markdown text editor so that you can explain your ideas alongside your calculations. Calca is perfect for professionals and students - anyone who works with numbers and equations. Variables and functions can be created with only a few keystrokes and can be manipulated with a rich library of o…
Read full description →

🆕 What's new · v1.7.2

* New binary shift operators (like C's) * More detailed reason if Apple Intelligence fails * Fix toolbar colors when editing documents

Comparable iOS apps

The five apps in Productivity with the closest revenue to Calca. Click any to see its detail page.

AppRevenueRatingRatings
PUB Reader - for MS Publisher icon PUB Reader - for MS Publisher 2.4K ★ 3.9 48
Calendars: Schedule Planner icon Calendars: Schedule Planner 2.5K ★ 4.7 119K
RPN 28x Calc icon RPN 28x Calc 2.4K ★ 5.0 33
Block Distracting Websites icon Block Distracting Websites 2.4K ★ 4.3 226
(beat) for iOS icon (beat) for iOS 2.4K ★ 4.5 35
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How we calculated this

Each forecast combines App Store rating, ratings count, monetisation model, pricing tier, IAP signals and ad-supported flag. The base estimate is then multiplied by a per-category scaling factor learned from apps with founder-verified MRR. Every number on this page comes from public APIs and bumetric's own snapshot history.

Full methodology covers input variables, accuracy bands per category and how we treat apps without comparable anchors. See also the live data on Calca's tracker page for current rating, reviews and snapshot timeline.

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