Comparison

TOEIC上級英単語1500 vs 無機化学

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

Head to head

About

TOEIC上級英単語1500

This app offers a curated selection of advanced English vocabulary words frequently appearing on the TOEIC test. It is exclusively for students of Toshin Business School, with some introductory content available for general users.

Highlights

Curated advanced TOEIC vocabulary
Focus on frequently tested words
Exclusive content for Toshin Business School students
Introductory content for general users

Features

Read full description

【ご注意】このアプリは東進ビジネススクール生（学生・社会人）専用です。STAGE 01・02は「体験受講」としてどなたでも学習可能ですが、STAGE 03〜15は東進ビジネススクール生としてのID・パスワードを入力しなければ学習できませんので、恐れ入りますが、あらかじめご了承ください。詳細は東進ビジネススクールホームページへ http://www.toshin.com/bs/ 　この『TOEIC上級英単語1500』は、TOEICテストによく出題される上級英単語を精選したアプリです。

About

無機化学

This app helps high school students memorize inorganic chemistry concepts. It covers reaction principles, metallic elements, and non-metallic elements, utilizing a red-sheet overlay for easy output and review. User feedback is actively incorporated for improvements.

Highlights

Red sheet overlay for output practice
Comprehensive inorganic chemistry content
Covers reaction principles
Covers metallic elements
Covers non-metallic elements
User feedback integration

Features

Read full description

高校生の時、欲しかったアプリを作りました。・赤シートで、楽にアウトプット・高校無機化学の内容を網羅（反応原理、金属元素、非金属元素）・あなたの要望を聞かせてください。反映します。利用規約：https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TOEIC上級英単語15001 screens

無機化学3 screens

Verdict

The call

The clearest difference is review sentiment: 無機化学 at 86% against TOEIC上級英単語1500's 50%. 無機化学 also leads on update cadence (every 2 months vs every 5 months). TOEIC上級英単語1500's advantage is in-app purchases (none vs 3) and iOS requirement (6.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 無機化学 sells 3 in-app purchases, starting at $1.99 per month. TOEIC上級英単語1500 asks for nothing beyond the download.

UpkeepUpdate frequency

TOEIC上級英単語1500 ships an update every 5 months, 無機化学 every 2 months. The most recent releases landed on October 9, 2026 and October 23, 2026 respectively.

Scorecard5 real differences · 3 level

TOEIC上級英単語1500 versus 無機化学: the parameters behind the verdict, then further details
Parameter	TOEIC上級英単語1500	無機化学
Price	Free	Free
Positive reviews	50.0% of reviews	86.4% of reviews — better
Update frequency	Every 5 months	Every 2 months — better
Ads	No	No
In-app purchases	No — better	Yes
Monetization	Free — better	Freemium
Devices	iPhone, iPod	iPhone, iPad
Requires iOS	6.0 — better	26.0
Further details — not scored
Size	101 MB	8 MB
Age rating	4+	4+
Developer	株式会社ナガセ	Akihiko Kitamura

Customer experience

TOEIC上級英単語1500

Written reviews4 reviews

Positive50.0%

Neutral0.0%

Negative50.0%

無機化学

Written reviews22 reviews

Positive86.4%

Neutral9.1%

Negative4.5%

In-app purchases

None

TOEIC上級英単語1500

No in-app purchases

3 purchases

無機化学

Subscriptions3

Pro - 1ヶ月$1.991 Month
Pro - 6ヶ月$11.996 Months
Pro - 12ヶ月$19.991 Year

Questions

Is TOEIC上級英単語1500 free?

TOEIC上級英単語1500 is free to download, with no in-app purchases.

Is 無機化学 free?

無機化学 is free to download, with in-app purchases available.

Do TOEIC上級英単語1500 or 無機化学 have ads?

Neither TOEIC上級英単語1500 nor 無機化学 shows ads.

Which is updated more often, TOEIC上級英単語1500 or 無機化学?

TOEIC上級英単語1500 ships an update every 5 months, and 無機化学 every 2 months. Most recently, TOEIC上級英単語1500 was updated on October 9, 2026 and 無機化学 on October 23, 2026.