Programmer Calculator vs 得润
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Programmer Calculator
This tool assists developers with number base conversions and CRC calculations for strings and hex bytes. Additional features are planned for future updates.
- Number base conversion
- CRC calculation
- String to hex conversion
- Hex byte CRC calculation
- Developer support tool
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Programmer calculator is a tool to support developers to convert numbers between different radix, to calculate CRC of strings or hex bytes. More features is under development and will be delivered in future.
得润
A professional charting tool for Qimen Dunjia enthusiasts. It generates charts instantly based on input time, displaying the nine palaces, eight gates, eight gods, nine stars, and celestial/terrestrial plates. It automatically corrects for true solar time based on longitude for greater accuracy.
- Instant Qimen Dunjia chart generation
- Displays nine palaces, eight gates, eight gods, nine stars
- True solar time correction by longitude
- Accurate 24 solar term lookup
- Historical records and notes with cloud sync
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玄门遁甲，为奇门遁甲爱好者打造的专业排盘工具。 输入时间即时起局，完整呈现九宫格、八门、八神、九星与天地盘，并按所在地经度自动校正真太阳时，起局更精准。 【主要功能】 · 阴盘遁甲排盘：一键起局，九宫格清晰呈现 · 真太阳时校正：依经度＋均时差换算，贴合古法 · 廿四节气查询：精确到交节时刻 · 历史记录与占事笔记：随手保存，云端同步 适合传统文化爱好者、奇门遁甲学习者与命理研究者。 本应用所提供的排盘与占卜内容，仅供传统文化研究与娱乐参考。
Screenshots
Verdict
The clearest difference is review sentiment: Programmer Calculator at 42% against 得润's 0%. Programmer Calculator also leads on iOS requirement (14.0 vs 16.0). 得润's advantage is in-app purchases (none vs 3) and update cadence (every 2 days vs fortnightly). On price, ads 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. Programmer Calculator sells 3 one-off in-app purchases. 得润 asks for nothing beyond the download.
Programmer Calculator ships an update fortnightly, 得润 every 2 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.
| Parameter | Programmer Calculator | 得润 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (32 ratings) — better | — |
| Positive reviews | 42.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 32 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 9+ |
| Developer | 永超 侯 | Suzhou Youdu Network Technology Co., Ltd |
Customer experience
Programmer Calculator
得润
In-app purchases
Programmer Calculator
- A coke$0.99
- A cup of coffee$2.99
- A big meal$5.99
得润
No in-app purchases
Questions
Is Programmer Calculator free?
Is 得润 free?
Do Programmer Calculator or 得润 have ads?
Which is updated more often, Programmer Calculator or 得润?
Other comparisons
