# 学習時間積算計 vs Sūji

The clearest difference is update cadence: Sūji at every 4 months against 学習時間積算計's every 51 months. Sūji also leads on device support (6 vs 3). 学習時間積算計's advantage is iOS requirement (12.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for 学習時間積算計 against 5.0 for Sūji. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

学習時間積算計 ships an update every 51 months, Sūji every 4 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 学習時間積算計 | Sūji |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1443708258/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/suji/id1598173381/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 51 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 108 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [masaki murayama](https://appshunter.io/developer/1275927862) | [Ale Mohamad](https://appshunter.io/developer/569018219) |

## What reviewers say

### 学習時間積算計

[App page](https://appshunter.io/ios/app/id1443708258)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sūji

[App page](https://appshunter.io/ios/app/suji/id1598173381)

Learn Japanese numbers with this app. It translates numbers into Kanji, Hiragana, or Romaji, and provides audio pronunciation. You can also generate random numbers to explore new combinations.

**Highlights:** Number translation to Kanji, Hiragana, Romaji, Audio pronunciation of numbers, Random number generation, Supports multiple writing systems, Practice writing and speaking

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is 学習時間積算計 free?

学習時間積算計 is free to download, with no in-app purchases.

### Is Sūji free?

Sūji is free to download, with no in-app purchases.

### Which has better reviews, 学習時間積算計 or Sūji?

学習時間積算計 and Sūji are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 学習時間積算計 or Sūji have ads?

Neither 学習時間積算計 nor Sūji shows ads.

### Which is updated more often, 学習時間積算計 or Sūji?

学習時間積算計 ships an update every 51 months, and Sūji every 4 months. Most recently, 学習時間積算計 was updated on November 2, 2026 and Sūji on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*