Best Proportion Calc vs Chromaticity Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Best Proportion Calc
Easily solve proportion problems with a simple and intuitive interface. This app uses the cross product method for quick and accurate calculations across various fields like finance and science. It's available offline and free to use.
- Intuitive proportion calculation
- Cross product method for solving equations
- Versatile for finance, science, and more
- Offline functionality
- Free to use
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Dive into the world of math without the hassle with our super rule of three calculator! Whether you're an intrepid student, a numbers whiz, or just curious, our app is here to make proportion calculations as easy as child's play, thanks to the genius cross product method. Why our calculator is great: Intuitive Calculation: No more headaches! Enter your values, let our calculator do its magic, and voilà, your results are there! Product in Turbo Cross: Goodbye to headaches with complicated equations! Our app uses the cross product method to solve everything from simple equations to crazy puzzles. Versatile: Whether you need to solve problems related to finance, science, or other fields, our app offers exceptional versatility. Offline and Free as Air: Wherever you are, our app follows you. No need for Internet, no limits. Get ready to experience a mathematical adventure like never before. Download our rule of three calculator now and let the math magic happen!
Chromaticity Assistant
This app provides color management and analysis tools. It supports color space conversion, spectral analysis of visible light, and color gamut analysis for various standards.
- Color space conversion (RGB, CMYK, HSV, LAB, HEX)
- Spectral analysis (CIE-1931, CIE-1976)
- Color gamut analysis (DCI-P3, NTSC, sRGB, Adobe RGB)
- Import optical spectrum data (CSV)
- Import primary color coordinates (CSV)
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您的掌上色彩管理与辅助分析助手！本软件支持色彩转换器，实现RGB表色系到CMYK、HSV、LAB、HEX表色系的转换；光谱分析，通过380～780可见光波段CSV格式光学图谱，分析计算CIE-1931、CIE-1976 color point x、y、u、v数据；以及色域分析，通过导入Red、Green、Blue Pattern三原色（x、y）坐标csv档案，计算分析DCI-P3、NTSC、sRGB、Adobe RGB色域覆盖率。
Screenshots
Verdict
The clearest difference is ads: Chromaticity Assistant at none against Best Proportion Calc's shown. Chromaticity Assistant also leads on monetization model (free vs ad-supported). Best Proportion Calc's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (4 vs 1). On price, rating, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Best Proportion Calc against 5.0 for Chromaticity Assistant. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Best Proportion Calc ships an update every 2 months, Chromaticity Assistant every 5 months. The most recent releases landed on September 13, 2026 and August 23, 2026 respectively.
| Parameter | Best Proportion Calc | Chromaticity Assistant |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Denis Belmont | 克俊 张 |
Customer experience
Best Proportion Calc
Chromaticity Assistant
In-app purchases
Best Proportion Calc
No in-app purchases
Chromaticity Assistant
No in-app purchases
Questions
Is Best Proportion Calc free?
Is Chromaticity Assistant free?
Which has better reviews, Best Proportion Calc or Chromaticity Assistant?
Do Best Proportion Calc or Chromaticity Assistant have ads?
Which is updated more often, Best Proportion Calc or Chromaticity Assistant?
Other comparisons
