Comparison

ローマ字あいうえお寿司 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

ローマ字あいうえお寿司

Features
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お寿司をにぎって、ローマ字をおぼえよう 回転寿司のお店を舞台にした、ローマ字学習アプリです。 かわいいお客さんの注文どおりにローマ字をならべて、お寿司をとどけよう ■ 新しい学習指導要領で採用されたヘボン式ローマ字に対応。 パスポートや駅の看板と同じ書き方だから、おぼえたことが実生活でも使えます。 ■ あ行から漢字の単語まで、ステップアップ式 ・まずは「あいうえお」からスタート ・濁音・半濁音・拗音(きゃ・きゅ・きょ)もしっかりカバー ・慣れてきたら「花」「電車」「寿司」など単語にチャレンジ ・上級者には歴史や寿司ネタの漢字も!大人でも手ごたえあり ■ 続けたくなる仕掛けがいっぱい ・練習をがんばるとトロフィーを獲得! ・ガチャで新しい単語をゲットしてコレクション ・時間制限つきのチャレンジモードでハイスコアに挑戦 ■ こんな方におすすめ ・ローマ字をはじめて習う方 ・タブレット学習やタイピングの練習をしたい方 ・ローマ字の読みをたのしく復習したい方 ローマ字表(ヘボン式)もいつでも見られるので、はじめてでも安心。 ねこの大将といっしょに、今日から練習をはじめよう!

About

Romaji Drill

Features
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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

ローマ字あいうえお寿司4 screens
Romaji Drill4 screens

Verdict

The call

The clearest difference is in-app purchases: ローマ字あいうえお寿司 at none against Romaji Drill's 1. Romaji Drill's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement 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. Romaji Drill sells 1 one-off in-app purchase. ローマ字あいうえお寿司 asks for nothing beyond the download.

UpkeepUpdate frequency

ローマ字あいうえお寿司 ships an update every 2 months, Romaji Drill fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 5 level
ローマ字あいうえお寿司 versus Romaji Drill: the parameters behind the verdict, then further details
Parameterローマ字あいうえお寿司Romaji Drill
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 2 monthsFortnightly — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size205 MB45 MB
Age rating4+4+
DeveloperSumie WatanabeRobonet Communications inc.

In-app purchases

None

ローマ字あいうえお寿司

No in-app purchases

1 purchases

Romaji Drill

One-time1
  • Turn off ads$1.99

Questions

Is ローマ字あいうえお寿司 free?
ローマ字あいうえお寿司 is free to download, with no in-app purchases.
Is Romaji Drill free?
Romaji Drill is free to download, with in-app purchases available.
Do ローマ字あいうえお寿司 or Romaji Drill have ads?
Both ローマ字あいうえお寿司 and Romaji Drill show ads.
Which is updated more often, ローマ字あいうえお寿司 or Romaji Drill?
ローマ字あいうえお寿司 ships an update every 2 months, and Romaji Drill fortnightly. Most recently, ローマ字あいうえお寿司 was updated on November 5, 2026 and Romaji Drill on October 31, 2026.

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