# Thunder Performance vs Pediatric & Perinatal Chiro

The clearest difference is ads: Pediatric & Perinatal Chiro at none against Thunder Performance's shown. Pediatric & Perinatal Chiro also leads on update cadence (every 10 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Thunder Performance ships an update every 5 weeks, Pediatric & Perinatal Chiro every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Thunder Performance | Pediatric & Perinatal Chiro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/thunder-performance/id6450727917/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 92 MB | 470 MB |
| Requires iOS | 15 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Thunder Performance LLC](https://appshunter.io/developer/1739689927) | [Brienne Mary Azzarone](https://appshunter.io/developer/1896755000) |

## What reviewers say

### Thunder Performance

[App page](https://appshunter.io/ios/app/thunder-performance/id6450727917)

Manage your fitness journey with this app. Reserve class spots, sign up for gym events, and update your account details like payment information and profile pictures.

**Highlights:** Class reservation, Event sign-up, Account management, Profile picture updates, Payment information management

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Pediatric & Perinatal Chiro

[App page](https://appshunter.io/ios/app/pediatric-and-perinatal-chiro/id6770578852)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Thunder Performance free?

Thunder Performance is free to download, with no in-app purchases.

### Is Pediatric & Perinatal Chiro free?

Pediatric & Perinatal Chiro is free to download, with no in-app purchases.

### Do Thunder Performance or Pediatric & Perinatal Chiro have ads?

Thunder Performance shows ads; Pediatric & Perinatal Chiro does not.

### Which is updated more often, Thunder Performance or Pediatric & Perinatal Chiro?

Thunder Performance ships an update every 5 weeks, and Pediatric & Perinatal Chiro every 10 days. Most recently, Thunder Performance was updated on November 3, 2026 and Pediatric & Perinatal Chiro 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.*