Comparison

単位図鑑 vs Unit Conveyor

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

Head to head
About

単位図鑑

Features
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「1キロってどのくらい?」 「1リットルって何杯分?」 お子さまのそんな疑問に、身の回りのモノで答える単位の図鑑です。 --- 単位図鑑ってなに? --- テストで「身長170km」と書いてしまう。 プールの水の量を「3mL」と答えてしまう。 単位の計算はできるのに、日常の感覚と結びついていない。 そんなお子さまのために作りました。 単位図鑑は、35の単位を1,000以上の「身近なたとえ」で体感できるアプリです。 --- 7つのカテゴリ --- 長さ(mm, cm, m, km) 重さ(g, kg, t) かさ(mL, dL, L) 面積(cm2, m2, a, ha) 速さ(時速km) 時間(秒, 分, 時間, 日, 年) 温度 --- 3つの学び方 --- 図鑑で見る 毎日変わる「きょうのたんい」で新しい発見。 カテゴリをえらんで、好きな単位の「たとえ」を見てみよう。 1つの単位に30個のたとえがあるから、何度見ても新しい発見があります。 自分で調べる 好きな数字を入れると「それってどのくらい?」に答えてくれます。 「50度ってどのくらい?」→「おふろよりちょっとあついおゆ」 クイズで遊ぶ 「サッカーコートと新幹線、長いのはどっち?」 くらべっこクイズで、単位の感覚がどんどん身につきます。 --- 保護者の方へ --- 広告は一切ありません アカウント登録は不要です 個人情報の収集はありません 学習データは端末内にのみ保存されます カテゴリ別の学習進捗を確認できます --- 今後のアップデート --- さらに多くの単位やたとえ、新しい機能を追加予定です。 --- こんな方におすすめ --- 中学受験を控えているお子さま 算数のテストで単位を間違えてしまうお子さま 「1kmってどのくらい?」に答えられないお子さま 楽しみながら単位を学ばせたい保護者の方 開発:さんすうがく(https://sansugaku.net)

About

Unit Conveyor

Features
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1 kg is 1000 g. 1 m is 100 cm. Unit Conveyor shows what happens to a number when the unit changes — so children see it, instead of memorising it. ■ The unit staircase Length, weight, volume and time units are laid out as steps. Send a crate up a step and the number gets smaller; send it down and it gets bigger. The crate travels between steps so the cause is visible. ■ The conversion line Four boxes come down the conveyor. Pick the one with the right answer. The wrong boxes are not random numbers. "Counted one zero too few", "multiplied instead of divided", "split an hour into 10" — each one is built from a mistake children actually make. So no box can be dismissed at a glance. Every question needs real thinking. ■ Shipping slips (word problems) "We used 2 m and 50 cm of ribbon. How many cm altogether?" Matching two different units before adding them is a separate skill, and it gets its own line. ■ Report Shows the percentage correct for each unit, so you can see which unit needs practice. ■ Safe to hand to a child ・Free. No in-app purchases and no subscriptions ・Ads appear only on the report screen, never while a question is on screen ・No full-screen ads and no video ads ・Results are stored on the device only, and are deleted with the app ・No camera, microphone, location, contacts or notifications Designed so a primary-school child can use it alone.

Screenshots

単位図鑑4 screens
Unit Conveyor4 screens

Verdict

The call

The clearest difference is ads: 単位図鑑 at none against Unit Conveyor's shown. On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 4 level
単位図鑑 versus Unit Conveyor: the parameters behind the verdict, then further details
Parameter単位図鑑Unit Conveyor
PriceFreeFree
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size2 MB32 MB
Age rating4+4+
DeveloperKOHEI YAMASHITAYoshihide Maehama

In-app purchases

None

単位図鑑

No in-app purchases

None

Unit Conveyor

No in-app purchases

Questions

Is 単位図鑑 free?
単位図鑑 is free to download, with no in-app purchases.
Is Unit Conveyor free?
Unit Conveyor is free to download, with no in-app purchases.
Do 単位図鑑 or Unit Conveyor have ads?
Unit Conveyor shows ads; 単位図鑑 does not.

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