Comparison

Pythagoras vs 51论文查重

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pythagoras

Explore the Pythagorean Theorem through engaging puzzles without complex formulas. This educational app offers a beautiful and fascinating way to understand geometric principles.

Highlights
  • Visual proof of Pythagorean Theorem
  • Formula-free learning
  • Educational puzzle gameplay
  • Beautiful design
  • Engaging and fascinating
Features
Read full description

A fascinating, beautiful and educating puzzle! Moreover, all this is a proof of the celebrated Pythagorean Theorem without any formulas!

About

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.

Highlights
  • Plagiarism detection
  • Paper revision assistance
  • Extensive comparison database
  • Fast and accurate results
  • Supports various academic paper types
  • Improves paper acceptance rates
Features
Read full description

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

Pythagoras2 screens
51论文查重4 screens

Verdict

The call

The clearest difference is rating: 51论文查重 at 5.0 against Pythagoras's 2.0. 51论文查重 also leads on update cadence (fortnightly vs every 6 months). Pythagoras's advantage is in-app purchases (none vs 10) and iOS requirement (8.0 vs 11.0). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 51论文查重 sells 10 one-off in-app purchases. Pythagoras asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

51论文查重 holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Pythagoras ships an update every 6 months, 51论文查重 fortnightly. The most recent releases landed on September 25, 2026 and September 8, 2026 respectively.

Scorecard5 real differences · 5 level
Pythagoras versus 51论文查重: the parameters behind the verdict, then further details
ParameterPythagoras51论文查重
PriceFreeFree
Rating2.0 (1 ratings)5.0 (2 ratings) — better
Positive reviews35.2% of reviews—
Number of ratings12 — better
Update frequencyEvery 6 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better11.0
Further details — not scored
Size8 MB25 MB
Age rating4+4+
DeveloperRoman KoksharovBeijing Jiangao Technology Co., Ltd.

Customer experience

Pythagoras

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews71 reviews
Positive35.2%
Neutral8.5%
Negative56.3%

51论文查重

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pythagoras

No in-app purchases

10 purchases

51论文查重

One-time10
  • 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 more
  • 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

Questions

Is Pythagoras free?
Pythagoras is free to download, with no in-app purchases.
Is 51论文查重 free?
51论文查重 is free to download, with in-app purchases available.
Which has better reviews, Pythagoras or 51论文查重?
51论文查重 is rated higher. Pythagoras averages 2.0 out of 5 from 1 ratings, while 51论文查重 averages 5.0 from 2 ratings.
Do Pythagoras or 51论文查重 have ads?
Neither Pythagoras nor 51论文查重 shows ads.
Which is updated more often, Pythagoras or 51论文查重?
Pythagoras ships an update every 6 months, and 51论文查重 fortnightly. Most recently, Pythagoras was updated on September 25, 2026 and 51论文查重 on September 8, 2026.

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