Gamma Calculator Pro
Gamma Calculator Pro is a paid iOS app in the Business category, published by Gerrit kleyn Winkel. It was first released on 5 May 2014, 12 years ago. Its latest update, version 2.7.1, came out on 20 Mar 2026.
Gamma Calculator Pro was in the top 10 of the Top Paid Business chart in the United States on 16 of the last 30 days, reaching #6 on 4 days, most recently on 21 Oct 2026. It stood at #6 on 21 Oct 2026, up 3 places from a week earlier. On that day it appeared in the same chart in 70+ countries. In the United States it holds a 3.58 average across 19 ratings. GameQuant records its ratings and store listing every day in 24 countries.
Charts checked every day · no missing days in the record
Latest data: · updated every morning
Gamma Calculator Pro downloads and revenue in the United States · September 2026
Estimates for this country only, not worldwide
iPhone & iPad downloads
United States · Sep 2026
iPhone & iPad revenue
United States · Sep 2026
Gamma Calculator Pro: Top Paid · Business · United States · last 30 days
1 = top of the chart · best rank recorded each day
Source: GameQuant, https://gamequant.io/app/ios/867478383/gamma-calculator-pro
<iframe src="https://gamequant.io/embed/ios/867478383?country=us&range=30" width="640" height="400" style="max-width:100%;border:0" loading="lazy" title="Gamma Calculator Pro: rank chart by GameQuant"></iframe><br><small>Source: <a href="https://gamequant.io/app/ios/867478383/gamma-calculator-pro">GameQuant</a></small>
<a href="https://gamequant.io/app/ios/867478383/gamma-calculator-pro"><img src="https://gamequant.io/chart/ios/867478383.png?country=us&range=30" width="600" height="450" alt="Gamma Calculator Pro: rank in Top Paid · Business, United States, last 30 days"></a><br><small>Source: <a href="https://gamequant.io/app/ios/867478383/gamma-calculator-pro">GameQuant</a></small>
Free to use in articles, reports and posts with this credit and a link to this page. Embed shows the live chart with a range switch; Image is a picture that updates daily.
Download chart (PNG)Rating distribution · United States
share of all ratings · 21 Oct 2026
| 5 stars | 47% | |
|---|---|---|
| 4 stars | 16% | |
| 3 stars | 5% | |
| 2 stars | 11% | |
| 1 star | 21% |
Rank by country
Top Paid · Business · best rank on 21 Oct 2026
| Country | Rank | 7-day change | Best, 90 days | Ratings |
|---|---|---|---|---|
| United States |
6 | up 3 | 6 · 21 Oct | 19 |
 United Kingdom |
158 | down 6 | 10 · 8 Oct | 1 |
 Germany |
191 | down 2 | 11 · 26 Aug | 0 |
+21 more countries, every chart and category, and the full history are in the licensed dataset.
Request dataAlso in Business
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Also popular in the United States
Rank in the United States on 21 Oct 2026
