Comparison

二千英単語 for the TOEIC® TEST vs Solve Right Triangle Pro

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

Head to head
About

二千英単語 for the TOEIC® TEST

This app helps users memorize 2000 essential TOEIC vocabulary words, categorized by difficulty level. It offers structured lessons, flashcards with pronunciation and example sentences, and progress tracking to enhance learning efficiency and prepare for the TOEIC test.

Highlights
  • 2000 TOEIC vocabulary words
  • Structured lessons by difficulty
  • Flashcards with pronunciation
  • Progress tracking and reports
  • Customizable tests
  • Review of incorrect answers
Features
Read full description

TOEIC英単語暗記の為のアプリです。 厳選したTOEIC600点、730点、860点レベルの2000単語が収録されてます。 ■単語学習 ・学習を選択すると全2000単語を40単語ずつの50レッスンに分けることによって、効率よく学習することが出来るようになっています。 ・お気に入りの単語があったら、スライドだけでチェックをつけられます。 ・単語カードに、英語の発音、例文及び通訳文が含まれています。 ・自動発音、自動捲り機能は学習の最中でもすぐ設定できますので、非常に使いやすいです。 ・単語学習の進捗が覚えられますので、次回入ったら、学習を続けられます。 ・各レッスンの単語を学習完了したら、自動的にテストに入れます、学習した単語を強化できます。 ■単語一覧 ・「一覧(ABC順)」、「単語種類別」、「お気に入り」、「よく間違う」、「未テスト」5タブがあって、 英語も日本語も一括で検索できます。 ■テスト ・「レッスン別」、「レベル別」、「単語種類別」、「全単語から」及び「よく間違う単語」を対象で出題できます。 ・テストの最中に一時停止、リトライ機能が付き、間違った単語のみを再テストすることもできます。 ■復習 ・テストで不正解になった単語は日付ごとにまとめられて一覧となって表示されます、どの単語を間違えたのか一目で確認できます。また、その日付けの単語を対象で、再テストができます。 ■レポート ・学習した単語数がグラフで表示され、学習進捗が見やすいですよ。 ・テスト結果、正解率、不正解率はチャートで表示され、学習の成績が詳しく把握できます。 ・単語レベル及び単語種類別での正解率もチャートで表示され、学習効果を多方面でわかるようなっています。 英語の勉強は毎日の積み重ねが大切です。このアプリケーションでTOEIC高得点を目指しましょう! ----- TOEIC is a registered trademark of Educational Testing Service (ETS). This product is not endorsed or approved by ETS. -----

About

Solve Right Triangle Pro

This app calculates all unknown quantities of a right triangle by inputting known values. It displays formulas, provides step-by-step solutions, and supports decimal and fraction inputs. Users can adjust decimal precision and view calculation history.

Highlights
  • Calculates all right triangle quantities
  • Displays relevant formulas
  • Step-by-step solutions
  • Supports decimals and fractions
  • Adjustable decimal precision
  • Calculation history
  • Shareable solutions
Features
Read full description

The best app to calculate all quantities of a right triangle. You must enter some quantities like an angle and a length. The algorithm searches the formulas of the missing quantities, shows them and calculates the results. The length of the decimal place can be changed. The algorithm shows when rounding or wrong values lead to an opposition. Decimals and fractions are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared. [ Content ] - all important quantities for the right triangle - formulas for all important quantities of a right triangle - infographic to illustrate the topic - search bar to find the desired quantity - history function to save input - detailed solution - positive numbers, decimals and fractions are supported - changeable decimal place - no ads! [ Usage ] - there are several fields for entering the values ​​using a special keyboard - if values are missing, all fields are highlighted in orange - if values are conflicting or wrong (e.g. negative lengths), one affected field is highlighted in red - every value must be positive - the sum of alpha and beta must be 90° - the sum of gamma must be 90° - if a value is no number, it is highlighted in red - 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 button - solutions can be shared

Screenshots

二千英単語 for the TOEIC® TEST4 screens
Solve Right Triangle Pro4 screens

Verdict

The call

The clearest difference is review sentiment: 二千英単語 for the TOEIC® TEST at 57% against Solve Right Triangle Pro's 0%. 二千英単語 for the TOEIC® TEST also leads on rating (5.0 vs 3.7) and price ($1.99 vs $2.99). Solve Right Triangle Pro's advantage is update cadence (monthly vs every 4 months) and device support (3 vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

二千英単語 for the TOEIC® TEST costs $1.99 and Solve Right Triangle Pro $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

二千英単語 for the TOEIC® TEST holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 57% of 二千英単語 for the TOEIC® TEST's written reviews are positive against 0% of Solve Right Triangle Pro's.

UpkeepUpdate frequency

二千英単語 for the TOEIC® TEST ships an update every 4 months, Solve Right Triangle Pro monthly. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard8 real differences · 2 level
二千英単語 for the TOEIC® TEST versus Solve Right Triangle Pro: the parameters behind the verdict, then further details
Parameter二千英単語 for the TOEIC® TESTSolve Right Triangle Pro
Price$1.99 — better$2.99
Rating5.0 (1 ratings) — better3.7 (3 ratings)
Positive reviews57.1% of reviews — better0.0% of reviews
Number of ratings13 — better
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS1715.0 — better
Further details — not scored
Size82 MB179 MB
Age rating4+4+
DeveloperHuMinghuaGlindemann, Sennoun, Langer GbR

Customer experience

二千英単語 for the TOEIC® TEST

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive57.1%
Neutral28.6%
Negative14.3%

Solve Right Triangle Pro

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

二千英単語 for the TOEIC® TEST

No in-app purchases

None

Solve Right Triangle Pro

No in-app purchases

Questions

Is 二千英単語 for the TOEIC® TEST free?
二千英単語 for the TOEIC® TEST costs $1.99, with no in-app purchases.
Is Solve Right Triangle Pro free?
Solve Right Triangle Pro costs $2.99, with no in-app purchases.
Which has better reviews, 二千英単語 for the TOEIC® TEST or Solve Right Triangle Pro?
二千英単語 for the TOEIC® TEST is rated higher. 二千英単語 for the TOEIC® TEST averages 5.0 out of 5 from 1 ratings, while Solve Right Triangle Pro averages 3.7 from 3 ratings.
Do 二千英単語 for the TOEIC® TEST or Solve Right Triangle Pro have ads?
Neither 二千英単語 for the TOEIC® TEST nor Solve Right Triangle Pro shows ads.
Which is updated more often, 二千英単語 for the TOEIC® TEST or Solve Right Triangle Pro?
二千英単語 for the TOEIC® TEST ships an update every 4 months, and Solve Right Triangle Pro monthly. Most recently, 二千英単語 for the TOEIC® TEST was updated on November 1, 2026 and Solve Right Triangle Pro on October 24, 2026.

Other comparisons