# Protostar Parents vs Readers Thinkers

The clearest difference is iOS requirement: Protostar Parents at 9.0 against Readers Thinkers's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Protostar Parents ships an update every 6 months, Readers Thinkers every 3 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Protostar Parents | Readers Thinkers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 67 MB | 21 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Longzhe Education Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1504821937) | [Dreamware Limited](https://appshunter.io/developer/892413586) |

## What reviewers say

### Protostar Parents

[App page](https://appshunter.io/ios/app/protostar-parents/id1578837954)

**Features:** macOS Compatibility

**In-app purchases:** none


### Readers Thinkers

[App page](https://appshunter.io/ios/app/readers-thinkers/id6464159991)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protostar Parents free?

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

### Is Readers Thinkers free?

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

### Do Protostar Parents or Readers Thinkers have ads?

Neither Protostar Parents nor Readers Thinkers shows ads.

### Which is updated more often, Protostar Parents or Readers Thinkers?

Protostar Parents ships an update every 6 months, and Readers Thinkers every 3 months. Most recently, Protostar Parents was updated on October 27, 2026 and Readers Thinkers on October 30, 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.*