# WTS Parent App vs Historical Enigma

The clearest difference is in-app purchases: WTS Parent App at none against Historical Enigma's 2. Historical Enigma's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Historical Enigma sells 2 in-app purchases, starting at $8.99 per 7 days. WTS Parent App asks for nothing beyond the download.

WTS Parent App ships an update monthly, Historical Enigma every 2 months. The most recent releases landed on October 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | WTS Parent App | Historical Enigma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/wts-parent-app/id1603757293/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 38 MB | 59 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Plotigo Pte Ltd](https://appshunter.io/developer/1715797631) | [Saluso](https://appshunter.io/developer/1880754438) |

## What reviewers say

### WTS Parent App

[App page](https://appshunter.io/ios/app/wts-parent-app/id1603757293)

This app allows parents to manage school bus services for their children. It offers easy registration, online payments, and real-time tracking of bus attendance and permissions.

**Highlights:** Fuss-free registration, Online payments, Monitor bus attendance, Share permissions

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

**In-app purchases:** none


### Historical Enigma

[App page](https://appshunter.io/ios/app/historical-enigma/id6760299541)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Access | $8.99 | per 7 days |
| Spy Games: Lisbon | $8.99 | one-time |


## Frequently asked questions

### Is WTS Parent App free?

WTS Parent App is free to download, with no in-app purchases.

### Is Historical Enigma free?

Historical Enigma is free to download, with in-app purchases available.

### Do WTS Parent App or Historical Enigma have ads?

Neither WTS Parent App nor Historical Enigma shows ads.

### Which is updated more often, WTS Parent App or Historical Enigma?

WTS Parent App ships an update monthly, and Historical Enigma every 2 months. Most recently, WTS Parent App was updated on October 4, 2026 and Historical Enigma on October 25, 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.*