# Dah vs Principles Personal Discovery

The clearest difference is device support: Dah at 5 against Principles Personal Discovery's 3. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Dah sells 3 one-off in-app purchases and Principles Personal Discovery sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Dah ships an update fortnightly, Principles Personal Discovery every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Dah | Principles Personal Discovery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/dah-varsity/id1567771078/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 3.2 GB | 57 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toyz Electronics](https://appshunter.io/developer/1567771080) | [TAN HAI LONG PHUNG](https://appshunter.io/developer/6777108773) |

## What reviewers say

### Dah

[App page](https://appshunter.io/ios/app/dah-varsity/id1567771078)

Learn STEAM and entrepreneurship through engaging gameplay. Explore topics like science, math, and arts while being inspired by the creators' journey. Discover resources for after-school activities and college preparation.

**Highlights:** STEAM and entrepreneurship learning, Interactive gaming experience, Inspiration from creators' story, Resources for after-school activities, College preparation guidance, Multilingual support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dah-Varsity Points | $4.99 | one-time |
| Dah-Varsity Points | $9.99 | one-time |
| Deity Dah Life or Death STEMS | $29.99 | one-time |


### Principles Personal Discovery

[App page](https://appshunter.io/ios/app/principles-personal-discovery/id6789200479)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Palace Report - Friends | $0.99 | one-time |
| Palace Report - Parents | $0.99 | one-time |
| Palace Report - Spouse | $0.99 | one-time |
| Palace Report - Siblings | $0.99 | one-time |
| Palace Report - Health | $0.99 | one-time |
| Palace Report - Children | $0.99 | one-time |
| Palace Report - Travel | $0.99 | one-time |
| Palace Report - Blessing | $0.99 | one-time |
| Annual Reading | $0.99 | one-time |
| Connection Report | $0.99 | one-time |


## Frequently asked questions

### Is Dah free?

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

### Is Principles Personal Discovery free?

Principles Personal Discovery is free to download, with in-app purchases available.

### Do Dah or Principles Personal Discovery have ads?

Neither Dah nor Principles Personal Discovery shows ads.

### Which is updated more often, Dah or Principles Personal Discovery?

Dah ships an update fortnightly, and Principles Personal Discovery every 3 weeks. Most recently, Dah was updated on November 3, 2026 and Principles Personal Discovery on October 31, 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.*