# Nanzoo Clock vs E

The clearest difference is in-app purchases: E at none against Nanzoo Clock's 1. Nanzoo Clock's advantage is update cadence (every 10 days vs every 4 months). On price and iOS requirement there is nothing between them.

Both are free to download. Nanzoo Clock sells 1 one-off in-app purchase. E asks for nothing beyond the download.

Nanzoo Clock ships an update every 10 days, E every 4 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Nanzoo Clock | E |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 174 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | — | **iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Takafumi Sasaki](https://appshunter.io/developer/625986968) | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) |

## What reviewers say

### Nanzoo Clock

[App page](https://appshunter.io/ios/app/nanzoo-clock/id625986965)

This educational app teaches children aged 3-7 how to tell time using interactive clock activities. Users can select animal clocks and practice setting and reading time with adjustable difficulty levels.

**Highlights:** Interactive animal clocks, Set the time activity, Read the time activity, Adjustable difficulty levels, Parent gate for purchases, No ads or tracking

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level Unlock | $0.99 | one-time |


### E

[App page](https://appshunter.io/ios/app/e-volvox-for-school/id1453658088)

**In-app purchases:** none


## Frequently asked questions

### Is Nanzoo Clock free?

Nanzoo Clock is free to download, with in-app purchases available.

### Is E free?

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

### Which is updated more often, Nanzoo Clock or E?

Nanzoo Clock ships an update every 10 days, and E every 4 months. Most recently, Nanzoo Clock was updated on November 1, 2026 and E 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.*