Pythagoras Calculator vs 51论文查重
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pythagoras Calculator
Easily calculate any side of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and offers an ad-free option.
- Pythagorean theorem calculations
- Calculate any of the three sides
- History of calculations
- Supports fraction input
- Shareable solutions
- Ad-free option
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Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter two sides and calculate the third using the Pythagorean theorem. HOW IT WORKS Enter your values in the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. We cannot draw any conclusions about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always fully available. If you need many solutions in a short time, various purchase options are available. EXTRAS - curated learning videos - feedback on incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
51论文查重
This app helps students and academics check their papers for plagiarism. It offers fast and accurate detection against a vast database, assisting with revisions to improve acceptance rates for various academic works.
- Plagiarism detection
- Paper revision assistance
- Extensive comparison database
- Fast and accurate results
- Supports various academic paper types
- Improves paper acceptance rates
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51论文查重是一款专注论文查重检测修改APP，手机在线进行论文查重、论文降重修改操作，方便极速查重降重，平台拥有海量的对比数据库及专业的论文检测系统，为用户提供精准、快速、安全的论文查重检测修改服务。无论是毕业论文、学术论文、知网论文及小木虫、爱学术人士都可通过51论文查重APP进行查重检测修改，安全准确有效提高论文通过率。 51论文查重是一款专注论文查重检测修改工具APP，平台拥有专业的论文查重检测系统，对比海量资源数据库，针对应届生毕业论文、语文论文、数学小论文、学术期刊论文、SCI论文、学位论文等均可快速方便完成查重检测。
Screenshots
Verdict
The clearest difference is rating: 51论文查重 at 5.0 against Pythagoras Calculator's 4.6. 51论文查重 also leads on iOS requirement (11.0 vs 15.0). Pythagoras Calculator's advantage is ratings volume (242 vs 2). On price, update cadence, ads and in-app purchases 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. Pythagoras Calculator sells 8 one-off in-app purchases and 51论文查重 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
51论文查重 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 242 ratings behind it against 2, so its average is the more settled of the two.
Pythagoras Calculator ships an update every 3 weeks, 51论文查重 fortnightly. The most recent releases landed on September 22, 2026 and September 8, 2026 respectively.
| Parameter | Pythagoras Calculator | 51论文查重 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (242 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 83.0% of reviews | — |
| Number of ratings | 242 — better | 2 |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 179 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Glindemann, Sennoun, Langer GbR | Beijing Jiangao Technology Co., Ltd. |
Customer experience
Pythagoras Calculator
51论文查重
Bugs and requests
Pythagoras Calculator
Reported bugs
6 issues- App crashes or fails to calculate
- Paid ad removal not working properly
- Fraudulent payment processing through third-party sites
- Occasional incorrect calculation results
- App not functioning on iPhone 5SE and older devices
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- Persistent ads despite payment for removal
Requested features
6 requests- Calculate triangle angles
- Support angle-based calculations with one side
- Better monetization without aggressive ads
- Improved ratings system
- Real-time results display
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- Support for non-right triangles
51论文查重
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Pythagoras Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 moreShow fewer
- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
51论文查重
- 论文查重12元/篇$1.99
- 论文降重93元$13.99
- 论文降重98元$14.99
Show 7 moreShow fewer
- 论文降重108元$15.99
- 论文降重113元$16.99
- 论文降重118元$17.99
- 论文降重123元$18.99
- 论文降重128元$19.99
- 论文降重138元$20.99
- 论文降重148元$21.99
