Comparison

Simplify & Solve Equation PRO vs 奇蹟背單字

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

Head to head
About

Simplify & Solve Equation PRO

This app quickly finds the solution for 'x' in algebraic equations. It shows every step of the simplification process, from complex terms to a simple form, before solving numerically. Supports decimals, constants, and variables, with a history function to save inputs.

Highlights
  • Solves algebraic equations for 'x'
  • Shows step-by-step simplification
  • Numeric algorithm for solutions
  • Supports decimals, constants, and variables
  • History function to save inputs
  • Highlights incorrect entries
Features
Read full description

Find x of an algebraic equation in less than a second. You have both sides of an equation where you can enter your algebraic terms. After entering the algebraic terms this app shows every step how to transform your complicated equation into a very simple one. In the end a numeric algorithm solves the simplified equation and provides the solution for x. It finds x (or the zeros of a function). [ Content ] - the mathmatical terms must be entered - simplification of the equation and solving x - history function that saves input - detailed solution - the entering of decimals is supported - constants and variables can be entered - no ads! [ Usage ] - there are 2 fields for entering the mathmatical terms ​​using a modified keyboard - if you have entered wrong values the text fields are highlighted - you can switch between the solution, input view and history by swiping and / or touching the buttons - the entries in the history can be deleted or sorted manually - if you select an entry in the history, it will be loaded automatically for the calculation - the entire history can be deleted by pressing a key

About

奇蹟背單字

Features
Read full description

告別傳統死記硬背,OK背單字運用先進的 AI 技術和科學的記憶方法,讓你輕鬆掌握英語單字!無論是學生、上班族還是英語學習愛好者,都能找到最適合自己的學習方式。 核心特色 • AI 智慧記憶系統 - 根據艾賓浩斯遺忘曲線,智能安排複習時間 - 自動分析你的記憶特點,打造個人化學習計劃 - 精準把握複習黃金時間 • 情境化學習 - 生活場景加深印象 - 趣味故事連結,讓單字更好記 - 實用例句幫助理解和運用 • 科學記憶方法 - 詞根詞綴分析,舉一反三 - 聯想記憶法,加深印象 - 分級學習系統,循序漸進 • 貼心功能 - 發音練習 - 學習數據分析 - 每日打卡提醒 適合人群 • 準備各類英語考試的學生 • 想提升職場競爭力的上班族 • 自學英語的語言愛好者 • 需要系統學習英語的各類人群 使用效果 • 詞彙量快速提升 • 記憶更持久 • 學習更有趣 • 應用更靈活 特別福利 • 豐富的免費詞庫 • 每日學習任務獎勵 • 定期舉辦學習競賽 • 專業語言老師在線指導 用戶反饋 "終於找到一個讓我堅持下來的背單字 APP!" "介面設計很精美,用起來很順手" "推薦功能特別貼心,幫我省去很多時間" 立即下載 OK背單字,開啟你的英語學習新旅程! 【自動訂閱服務說明】 訂閱服務:OK背單字會員年卡(12個月)、OK背單字會員月卡(1個月) 自動續費:蘋果iTunes帳戶會在到期前24小時內扣款,扣款成功後訂閱週期將順延一個訂閱週期。 關閉服務:您可以在iPhone的「設定」--> 進入「iTunes Store 與 App Store」--> 點擊「Apple ID」,選擇「查看Apple ID」,進入「帳戶設定」頁面,點擊「訂閱」,管理自動訂閱服務。如需取消,請於每個計費週期結束前24小時關閉即可;若在到期前24小時內操作,則不會再扣款。 隱私協議:https://wordtw.wordbye.cn/agreement?type=privacy 使用條款: https://wordtw.wordbye.cn/agreement?type=agreement 標準Apple使用條款(EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Simplify & Solve Equation PRO3 screens
奇蹟背單字4 screens

Verdict

The call

The clearest difference is price: 奇蹟背單字 at Free against Simplify & Solve Equation PRO's $1.99. 奇蹟背單字 also leads on update cadence (every 5 days vs monthly). Simplify & Solve Equation PRO's advantage is rating (5.0 vs 3.8) and in-app purchases (none vs 3). On ratings volume, ads, device support and iOS requirement 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

奇蹟背單字 is free to download; Simplify & Solve Equation PRO costs $1.99 up front. 奇蹟背單字 sells 3 in-app purchases, starting at $1.99 per month. Simplify & Solve Equation PRO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simplify & Solve Equation PRO holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

UpkeepUpdate frequency

Simplify & Solve Equation PRO ships an update monthly, 奇蹟背單字 every 5 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Simplify & Solve Equation PRO versus 奇蹟背單字: the parameters behind the verdict, then further details
ParameterSimplify & Solve Equation PRO奇蹟背單字
Price$1.99Free — better
Rating5.0 (3 ratings) — better3.8 (4 ratings)
Positive reviews—40.0% of reviews
Number of ratings34 — better
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size182 MB47 MB
Age rating4+4+
DeveloperGlindemann, Sennoun, Langer GbRByteTechVista LTD

Customer experience

Simplify & Solve Equation PRO

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

奇蹟背單字

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

None

Simplify & Solve Equation PRO

No in-app purchases

3 purchases

奇蹟背單字

Subscriptions2
  • 背單字會員月卡$1.991 Month
  • 背單字會員年卡$17.991 Year
One-time1
  • 終身會員$12.99

Questions

Is Simplify & Solve Equation PRO free?
Simplify & Solve Equation PRO costs $1.99, with no in-app purchases.
Is 奇蹟背單字 free?
奇蹟背單字 is free to download, with in-app purchases available.
Which has better reviews, Simplify & Solve Equation PRO or 奇蹟背單字?
Simplify & Solve Equation PRO is rated higher. Simplify & Solve Equation PRO averages 5.0 out of 5 from 3 ratings, while 奇蹟背單字 averages 3.8 from 4 ratings.
Do Simplify & Solve Equation PRO or 奇蹟背單字 have ads?
Neither Simplify & Solve Equation PRO nor 奇蹟背單字 shows ads.
Which is updated more often, Simplify & Solve Equation PRO or 奇蹟背單字?
Simplify & Solve Equation PRO ships an update monthly, and 奇蹟背單字 every 5 days. Most recently, Simplify & Solve Equation PRO was updated on October 24, 2026 and 奇蹟背單字 on October 24, 2026.

Other comparisons