Comparison

GFS vs 丙種ガス主任技術者対策 500問

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

Head to head

About

GFS

Learn about history, finance, economics, and asset management through engaging videos. Access educational content 24/7, anytime, anywhere, and rewatch lessons as many times as you need.

Highlights

Learn history, finance, and economics
Study asset management and investment
Access video lessons 24/7
Rewatch lessons unlimited times
Learn anytime, anywhere

Features

Read full description

GFSとは、お金を武器にするためのお金の学校です。歴史、金融、経済、資産運用（投資）の全てが学べます。好きな動画を好きなだけ、24時間いつでもどこでも何度でも学習可能です。

About

丙種ガス主任技術者対策 500問

Features

Read full description

丙種ガス主任技術者試験の対策クイズアプリです。本番を想定したオリジナル問題500問を収録。章別学習・ランダム演習・模擬試験で効率的に合格を目指せます。【収録内容】・全500問、四肢択一形式・全問に詳しい解説付き・章別の学習進捗トラッキング・間違えた問題の自動復習リスト＋ブックマーク・模擬試験モードで実戦演習【アプリの特長】・完全オフライン動作（通信不要）・アカウント登録・ログイン不要・広告なし、追加課金なし（買い切り型）・データ収集は一切行いません ※本アプリは非公式の学習支援アプリであり、試験実施団体とは一切関係ありません。収録問題は公開情報に基づき独自に作成したオリジナル問題です。通勤・通学などのスキマ時間の学習に。丙種ガス主任技術者試験の合格対策にお役立てください。

Screenshots

GFS4 screens

丙種ガス主任技術者対策 500問4 screens

Verdict

The call

The clearest difference is price: GFS at Free against 丙種ガス主任技術者対策 500問's $3.99. GFS also leads on iOS requirement (13.0 vs 15.1). 丙種ガス主任技術者対策 500問's advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases 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

GFS is free to download; 丙種ガス主任技術者対策 500問 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GFS ships an update every 3 months, 丙種ガス主任技術者対策 500問 every 3 weeks. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 5 level

GFS versus 丙種ガス主任技術者対策 500問: the parameters behind the verdict, then further details
Parameter	GFS	丙種ガス主任技術者対策 500問
Price	Free — better	$3.99
Positive reviews	21.4% of reviews	—
Update frequency	Every 3 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0 — better	15.1
Further details — not scored
Size	6 MB	34 MB
Age rating	4+	4+
Developer	FREE LIFE CONSULTING, K.K.	satoshi yoshida

In-app purchases

None

GFS

No in-app purchases

None

丙種ガス主任技術者対策 500問

No in-app purchases

Questions

Is GFS free?

GFS is free to download, with no in-app purchases.

Is 丙種ガス主任技術者対策 500問 free?

丙種ガス主任技術者対策 500問 costs $3.99, with no in-app purchases.

Do GFS or 丙種ガス主任技術者対策 500問 have ads?

Neither GFS nor 丙種ガス主任技術者対策 500問 shows ads.

Which is updated more often, GFS or 丙種ガス主任技術者対策 500問?

GFS ships an update every 3 months, and 丙種ガス主任技術者対策 500問 every 3 weeks. Most recently, GFS was updated on October 2, 2026 and 丙種ガス主任技術者対策 500問 on September 25, 2026.