日常計算 vs Unit Conveyor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
日常計算
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Daily Calculation is an app that lets you practice calculations often used in everyday life, such as shopping, discounts, splitting bills, and time calculations, in a quiz format. With practical questions like “How much is it after a percentage discount?”, “What time should I leave to arrive on time?”, and “How much does each person pay?”, you can enjoy improving your calculation skills through situations close to real life. Features: ・Practice shopping, discounts, splitting bills, time calculations, and more ・Fast-paced quiz format ・Build a practical sense for calculations used in daily life ・Simple and easy-to-understand screens ・Practice during short breaks Recommended for anyone who is not confident with mental math or wants to calculate faster in everyday situations. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Unit Conveyor
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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
Verdict
The clearest difference is in-app purchases: Unit Conveyor at none against 日常計算's 2. 日常計算's advantage is update cadence (every 3 weeks vs every 6 weeks) and device support (3 vs 1). On price, ads 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
Both are free to download. 日常計算 sells 2 in-app purchases, starting at $1.99 per month. Unit Conveyor asks for nothing beyond the download.
日常計算 ships an update every 3 weeks, Unit Conveyor every 6 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.
| Parameter | 日常計算 | Unit Conveyor |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 70 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | SYSTEM TAMAYA | Yoshihide Maehama |
In-app purchases
日常計算
- プレミアム月額プラン$1.991 Month
- 広告を削除$1.99
Unit Conveyor
No in-app purchases








