# Coparentalys vs RattleStork

The clearest difference is review sentiment: RattleStork at 40% against Coparentalys's 30%. Coparentalys's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Coparentalys sells 6 one-off in-app purchases and RattleStork sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Coparentalys ships an update monthly, RattleStork every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Coparentalys | RattleStork |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (5 ratings)](https://appshunter.io/ios/app/rattlestork-sperm-donation/id6503442456/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 30.0% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 27 MB | 329 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Coparentalys](https://appshunter.io/developer/1659655270) | [RattleStork](https://appshunter.io/developer/1749270817) |

## What reviewers say

### Coparentalys

[App page](https://appshunter.io/ios/app/coparentalys/id1659655268)

This social networking app helps individuals find compatible partners to become co-parents by choice. It facilitates connections for those looking to raise a child together.

**Highlights:** Find compatible co-parents, Connect with potential partners, Facilitates child-raising partnerships, Social networking for co-parenting

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 MONTH STANDARD | $20.99 | one-time |
| 1 MONTH PREMIUM | $32.99 | one-time |
| 3 MONTHS STANDARD | $36.99 | one-time |
| 6 MONTHS STANDARD | $49.99 | one-time |
| 3 MONTHS PREMIUM | $74.99 | one-time |
| 6 MONTHS PREMIUM | $99.99 | one-time |


### RattleStork

[App page](https://appshunter.io/ios/app/rattlestork-sperm-donation/id6503442456)

This app facilitates sperm donation and co-parenting in the US, connecting individuals and couples with donors and co-parents. It offers a direct, clinic-free approach to family building with secure messaging and verified profiles.

**Highlights:** Sperm donation in the US, Co-parenting connections, Home insemination support, Verified donor profiles, Secure, private messaging, Clinic-free family building

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rattlestork Premium Monthly | $12.99 | per month |
| Rattlestork Premium Quaterly | $24.99 | per 3 months |
| Rattlestork Premium Annually | $99.99 | per year |


## Frequently asked questions

### Is Coparentalys free?

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

### Is RattleStork free?

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

### Do Coparentalys or RattleStork have ads?

Neither Coparentalys nor RattleStork shows ads.

### Which is updated more often, Coparentalys or RattleStork?

Coparentalys ships an update monthly, and RattleStork every 3 weeks. Most recently, Coparentalys was updated on October 24, 2026 and RattleStork on October 24, 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.*