What is Opamp Calculator's rating?

Opamp Calculator is rated 5.0 stars across 381 ratings on the Play Store.

Who makes Opamp Calculator?

Opamp Calculator is published by android-design.nl, launched on Apr 21, 2012.

Where does Opamp Calculator rank in its category?

Opamp Calculator ranks #5848 of 35236 apps in Productivity, putting it in the top 16.6% by revenue.

How much does Opamp Calculator earn?

Q: How much does Opamp Calculator earn?

Opamp Calculator earns approximately 341 per month based on bumetric's ML revenue forecast, calibrated against 35236 comparable Android apps in Productivity.

Android app from android-design.nl · Productivity

ML forecast ★ 5.0 · 381 Free

~341/mo

ML revenue forecast. Calibrated against 35236 apps in this category.

Confidence band

±15%

High — many comparable apps with verified data

At a glance

Earns 2.25× more than the category median (151/mo).
Ranks #5,848 of 35,236 in Productivity (top 16.6% by revenue).
Launched Apr 21, 2012 · last updated Aug 17, 2025.

What the app looks like

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

Opamp Calculator's revenue trajectory

Forecast revenue from snapshot history. Last 1 months.

Where Opamp Calculator sits in Productivity

Revenue distribution of 35236 comparable apps. Opamp Calculator highlighted.

Opamp Calculator vs comparable apps

Revenue trajectory side-by-side. Bold = Opamp Calculator, ghosted = peers.

App spec

Version

3.012

Last update

Aug 17, 2025

Launched

Apr 21, 2012

Price

Free

Monetization

Free

What Opamp Calculator actually does (from store listing)

Opamp Calculator for electronic engineers, hobbyists and students. Feature list: - Inverting Amplifier - Non inverting Amplifier - Differential Amplifier - Inverting Summing Amplifier - Summing Amplifier LIKE and Share us: Google+: http://gplus.to/androiddesignnl

Comparable Android apps

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

App	Revenue	Rating	Ratings
NI WorkTrak	341	★ 2.0	656
Koofr: The Cloud Storage	341	★ 4.1	1K
Salah Alarm : Prayer Times	341	★ 4.0	2K
FEX transportista: conduce +	341	—	0
Trial>+ PLANNER	341	—	0

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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 Opamp Calculator's tracker page for current rating, reviews and snapshot timeline.

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