Comparison

Test Study AI vs Romaji Drill

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

Head to head
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

About

Romaji Drill

Features
Read full description

Is でんしゃ spelled densya or densha? Both — it depends on which system you use. Most people who struggle with romaji were never told that Japanese has two romanisation systems. Kunrei-shiki is what Japanese schools have taught; since December 2025 the national standard has been based on Hepburn, which passports and station signs also use. When you spell a word in the other system, this app does not simply mark it wrong. It tells you: "That is Hepburn spelling. In Kunrei-shiki it is densya." ■ Three ways to practise ・Pick — choose the correct spelling out of two to four ・Read — read the romaji and work out which word it is ・Write — spell it out on the on-screen keyboard (ABC order or QWERTY; long vowels use the ô key) ■ Every mistake comes with the rule behind it Spell it the other way and you are told "that is Hepburn spelling". Write gakô for がっこう and you are told that a small っ doubles the next consonant. Get it right and the rule is still shown. Nothing advances until you have read it. ■ Results point at rules, not just a score Wrong answers are grouped by the rule you missed — double consonants, long vowels, and so on — so you know what to look at next. ■ Practise in the system you need ・Hepburn — the national standard, also on passports and signs (shi, chi, tsu, sha) ・Kunrei-shiki — what Japanese schools have taught (si, ti, tu, sya) ・Keyboard input — how you actually type (either spelling is accepted) ■ Nine topics Basic kana, voiced kana, contracted sounds, double consonants, long vowels, the n sound, everyday words, place names, and short sentences. 300 questions in all. ■ Romaji chart All three systems side by side, with the rows where they differ highlighted, plus the rules for っ, ー and ん. ■ Time trial How many can you write in 3 minutes? A best score is kept per system. ■ Also ・Japanese, English, 简体中文, 한국어, Español ・No account, no sign-in. Scores and settings stay on your device ・Prefer no ads? A one-time purchase removes them for good

Screenshots

Test Study AI4 screens
Romaji Drill4 screens

Verdict

The call

The clearest difference is ads: Test Study AI at none against Romaji Drill's shown. On price, update cadence, 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

Both are free to download. Test Study AI sells 6 in-app purchases, starting at $1.99 per 7 days and Romaji Drill sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Test Study AI ships an update every 8 days, Romaji Drill fortnightly. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard1 real difference · 7 level
Test Study AI versus Romaji Drill: the parameters behind the verdict, then further details
ParameterTest Study AIRomaji Drill
PriceFreeFree
Positive reviews66.7% of reviews—
Update frequencyEvery 8 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.4 — better
Further details — not scored
Size30 MB45 MB
Age rating4+4+
DeveloperKazumasa ShimomuraRobonet Communications inc.

In-app purchases

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
1 purchases

Romaji Drill

One-time1
  • Turn off ads$1.99

Questions

Is Test Study AI free?
Test Study AI is free to download, with in-app purchases available.
Is Romaji Drill free?
Romaji Drill is free to download, with in-app purchases available.
Do Test Study AI or Romaji Drill have ads?
Romaji Drill shows ads; Test Study AI does not.
Which is updated more often, Test Study AI or Romaji Drill?
Test Study AI ships an update every 8 days, and Romaji Drill fortnightly. Most recently, Test Study AI was updated on October 30, 2026 and Romaji Drill on October 29, 2026.

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