Comparison

AI チャット アプリ vs Test Study AI

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

Head to head
About

AI チャット アプリ

This AI-powered chat application provides instant text responses to your questions. Ask anything you're curious about and receive immediate answers. A VIP plan offers unlimited questions and chat categorization.

Highlights
  • AI-powered instant responses
  • Ask any question
  • Unlimited questions (VIP)
  • Chat categorization (VIP)
  • Subscription plans available
Features
Read full description

AI搭載のチャットアプリケーションが完成しました! 質問をAIに投げかけることによって、即座に記入したテキストの回答をAIが返答してくれます。 気になることはなんでも「AI チャット」に投げかけてみてください! ■ VIPプランの仕組みについて VIPプランは「オプション」です。ご利用に必須ではありません。 ご質問1回ごとにAPIの利用料がかかることから、無制限で質問可能になることをメインとしたVIPプランは有料となります。 無制限に質問可能になることのほか、チャットごとにカテゴリー分けができるようになる機能も利用可能になります。 - 課金方法について お使いの iTunes アカウントに課金されます。月ごとの自動更新となります。 - 各種料金プラン詳細について 価格については以下になります 1週間更新プラン: 850円 - VIPプランに加入すると提供されるサービス テキスト送信の回数が無制限になります - 自動更新の詳細 VIPプラン期間の終了日の24時間以上前に自動更新を解除しない限り、会員期間が自動更新されます。 自動更新の課金は、契約期間の終了前24時間以内に行われます。 - 会員状況の確認・自動更新の解除方法 会員状況の確認と退会は下記より可能です。 1. App Storeアプリを開く 2.「おすすめ」タブの最下部までスクロール 3.「Apple ID/アカウント」を選択 4.「購読/管理」を選択 次回の自動更新日時の確認や、自動更新の解除・設定はこの画面にてお願いいたします。 ※ iTunesからも同様の確認や自動更新の解除・設定が可能です。 プラポリ: https://solstice-shirt-7b8.notion.site/AI-d0dfad5f94b4455fbf1ede80b0b84a25 利用規約: https://solstice-shirt-7b8.notion.site/AI-52500df0cb9149e5bfdcd92d0620970e

About

Test Study AI

Transform your handwritten notes and handouts into effective study materials. This AI-powered tool generates summaries, flashcards, and quizzes from photos of your study content, helping you memorize and test your knowledge.

Highlights
  • Photo to study material conversion
  • AI-generated summaries
  • Red-sheet memorization cards
  • Quick quiz generation
  • Follow-up question support
  • 24/7 availability
Features
Read full description

Take a photo of notes or handouts and AI creates a test prep set: key summary, red-sheet memorization cards, and quick quizzes. AITalk helps turn your test range into a review flow you can repeat on your phone. What you can do - Test Prep Set Mode: create summaries, red sheets, and quizzes together - Photo to review: turn notes, handouts, textbook pages, or board photos into study material - Red-sheet memorization: hide important terms and repeat until you remember - Quick quizzes: generate short-answer and one-question-one-answer practice - Regular chat: ask follow-up questions when a point still feels unclear - Available 24/7: ask questions anytime without hesitation (Math, English, Science, Social Studies, Japanese) Great for - Students preparing for regular exams - Turning scattered notes into a clear review checklist - Memorizing terms, formulas, dates, and key phrases - Quick review at home or in spare time Privacy & safety - We handle personal information appropriately (see Privacy Policy) - Report and detection for inappropriate content How it works 1. Attach photos of your test range, notes, or handouts. 2. Select Create Test Prep Set. 3. AI creates a key summary, red sheet, and quiz. 4. Review the summary first. 5. Use red-sheet cards to memorize important terms. 6. Solve the quiz and ask follow-ups for anything you missed. Common examples - Math: turn word-problem notes into key formulas and practice questions - English: extract key expressions and grammar checks from textbook pages - Science: make red-sheet cards for Ohm's law or chemical reactions - Social Studies: organize dates, people, and cause-effect links into Q&A - Japanese: summarize reading points and answer patterns for written questions Tips to learn better - Include pages that show the test range when possible. - Read the key summary, then immediately test yourself with red sheets. - Ask follow-ups only for the quiz questions you missed. - Check the "why" behind answers, not just the final result. Notes - AI may make mistakes. Verify before submitting assignments. - Don't share personal information or faces in photos. - Respect copyright when sharing materials. - Use according to your school and exam rules. Terms of Use: https://hackmd.io/@HqOZ114gRX-5r1O7ULE8ew/H1UmuJcEh

Screenshots

AI チャット アプリ3 screens
Test Study AI4 screens

Verdict

The call

The clearest difference is review sentiment: Test Study AI at 67% against AI チャット アプリ's 5%. Test Study AI also leads on update cadence (every 8 days vs every 3 weeks). AI チャット アプリ's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and monetization model 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. AI チャット アプリ sells 2 in-app purchases, starting at $5.99 per 7 days and Test Study AI sells 6 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AI チャット アプリ ships an update every 3 weeks, Test Study AI every 8 days. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
AI チャット アプリ versus Test Study AI: the parameters behind the verdict, then further details
ParameterAI チャット アプリTest Study AI
PriceFreeFree
Rating4.6 (5 ratings) — better—
Positive reviews5.0% of reviews66.7% of reviews — better
Number of ratings5 — better—
Update frequencyEvery 3 weeksEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size10 MB30 MB
Age rating4+4+
DeveloperCapCat LLCKazumasa Shimomura

Customer experience

AI チャット アプリ

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews20 reviews
Positive5.0%
Neutral0.0%
Negative95.0%

Test Study AI

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

2 purchases

AI チャット アプリ

Subscriptions2
  • AI Professional3 Days trial$5.997 Days
  • ChatGPT PRO Trial3 Days trial$9.997 Days
6 purchases

Test Study AI

Subscriptions1
  • プレミアムプラン3 Days trial$1.997 Days
One-time5
  • コインパック10pt$0.99
  • コインパック50 + 5pt$2.99
  • コインパック120 + 30pt$5.99
Show 2 more
  • コインパック280 + 80pt$11.99
  • コインパック600 + 200pt$22.99

Questions

Is AI チャット アプリ free?
AI チャット アプリ is free to download, with in-app purchases available.
Is Test Study AI free?
Test Study AI is free to download, with in-app purchases available.
Do AI チャット アプリ or Test Study AI have ads?
Neither AI チャット アプリ nor Test Study AI shows ads.
Which is updated more often, AI チャット アプリ or Test Study AI?
AI チャット アプリ ships an update every 3 weeks, and Test Study AI every 8 days. Most recently, AI チャット アプリ was updated on September 25, 2026 and Test Study AI on September 21, 2026.

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