# 世界人口電卓 vs 解説！ジーニアス受験生！

世界人口電卓 and 解説！ジーニアス受験生！ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

世界人口電卓 ships an update every 3 days, 解説！ジーニアス受験生！ every 2 days. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 世界人口電卓 | 解説！ジーニアス受験生！ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 5 MB | 229 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HANAUTA INC.](https://appshunter.io/developer/492009717) | [HIROMICHI OTAKI](https://appshunter.io/developer/1888616625) |

## What reviewers say

### 世界人口電卓

[App page](https://appshunter.io/ios/app/id6444753498)

**Features:** macOS Compatibility

**In-app purchases:** none


### 解説！ジーニアス受験生！

[App page](https://appshunter.io/ios/app/id6736894067)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 世界人口電卓 free?

世界人口電卓 is free to download, with no in-app purchases.

### Is 解説！ジーニアス受験生！ free?

解説！ジーニアス受験生！ is free to download, with no in-app purchases.

### Do 世界人口電卓 or 解説！ジーニアス受験生！ have ads?

Neither 世界人口電卓 nor 解説！ジーニアス受験生！ shows ads.

### Which is updated more often, 世界人口電卓 or 解説！ジーニアス受験生！?

世界人口電卓 ships an update every 3 days, and 解説！ジーニアス受験生！ every 2 days. Most recently, 世界人口電卓 was updated on October 4, 2026 and 解説！ジーニアス受験生！ on October 13, 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.*