# Hydesville Elementary SD vs CEN Study Guide 2026

The clearest difference is in-app purchases: Hydesville Elementary SD at none against CEN Study Guide 2026's 4. Hydesville Elementary SD also leads on update cadence (every 2 months vs every 9 months). CEN Study Guide 2026's advantage is iOS requirement (14.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. CEN Study Guide 2026 sells 4 in-app purchases, starting at $4.99 per 7 days. Hydesville Elementary SD asks for nothing beyond the download.

Hydesville Elementary SD ships an update every 2 months, CEN Study Guide 2026 every 9 months. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Hydesville Elementary SD | CEN Study Guide 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Size | 142 MB | 128 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Hydesville Elementary School District](https://appshunter.io/developer/1747793215) | [KYLIEPREP](https://appshunter.io/developer/1709105434) |

## What reviewers say

### Hydesville Elementary SD

[App page](https://appshunter.io/ios/app/hydesville-elementary-sd/id6503015842)

**In-app purchases:** none


### CEN Study Guide 2026

[App page](https://appshunter.io/ios/app/cen-study-guide-2026/id6615085273)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $4.99 | per 7 days |
| 1 Month Special Offer | $7.49 | per month |
| 1 Month | $14.99 | per month |
| 3 Months | $39.99 | per 3 months |


## Frequently asked questions

### Is Hydesville Elementary SD free?

Hydesville Elementary SD is free to download, with no in-app purchases.

### Is CEN Study Guide 2026 free?

CEN Study Guide 2026 is free to download, with in-app purchases available.

### Do Hydesville Elementary SD or CEN Study Guide 2026 have ads?

Neither Hydesville Elementary SD nor CEN Study Guide 2026 shows ads.

### Which is updated more often, Hydesville Elementary SD or CEN Study Guide 2026?

Hydesville Elementary SD ships an update every 2 months, and CEN Study Guide 2026 every 9 months. Most recently, Hydesville Elementary SD was updated on October 18, 2026 and CEN Study Guide 2026 on October 7, 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.*