# Twin Science vs Parently Loop

The clearest difference is update cadence: Parently Loop at daily against Twin Science's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Twin Science sells 10 in-app purchases, starting at $2.49 per month and Parently Loop sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Twin Science ships an update every 2 months, Parently Loop daily. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Twin Science | Parently Loop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (76 ratings)](https://appshunter.io/ios/app/twin-science-stem-learning/id1479559635/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 35 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TWIN YAZILIM MUHENDISLIK SANAYI VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1447423866) | [GOINNOVATEHUB LLC](https://appshunter.io/developer/1896277048) |

## What reviewers say

### Twin Science

[App page](https://appshunter.io/ios/app/twin-science-stem-learning/id1479559635)

This app provides sustainability and environmental education for children aged 7-12 through gamified STEM+A content. It features interactive videos, hands-on projects, trivia, and AI-based skill reports for parents and educators.

**Highlights:** SDG-based sustainability content, Gamified learning experience, AI-based monthly skill reports, Interactive discovery videos, Hands-on DIY projects, STEM+A trivia games, Ad-free and moderated environment

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $2.49 | per month |
| Premium Membership | $2.99 | per month |
| Premium Membership | $3.49 | per month |
| Monthly Premium Plan | $7.99 | per month |
| Premium Membership | $23.99 | per year |
| Premium Membership | $27.99 | per year |
| Premium Membership | $29.99 | per year |
| 6 Months Education Pack | $44.99 | per 6 months |
| Yearly Premium Plan | $79.99 | per year |
| 1 Year Education Pack | $79.99 | per year |


### Parently Loop

[App page](https://appshunter.io/ios/app/parently-loop-school-emails/id6766327987)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Parently Loop Pro - Monthly | $4.99 | per month |
| Parently Loop Pro - Annual | $39.99 | per year |


## Frequently asked questions

### Is Twin Science free?

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

### Is Parently Loop free?

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

### Do Twin Science or Parently Loop have ads?

Neither Twin Science nor Parently Loop shows ads.

### Which is updated more often, Twin Science or Parently Loop?

Twin Science ships an update every 2 months, and Parently Loop daily. Most recently, Twin Science was updated on October 7, 2026 and Parently Loop on October 2, 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.*