# Shield 100SA vs Atomic Jiu

The clearest difference is update cadence: Shield 100SA at every 10 days against Atomic Jiu's every 2 months. Atomic Jiu's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Shield 100SA ships an update every 10 days, Atomic Jiu every 2 months. The most recent releases landed on September 30, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Shield 100SA | Atomic Jiu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atomic-jiu-jitsu/id6747397243/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | — | Free |
| Size | 35 MB | 40 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [100 Club of San Antonio](https://appshunter.io/developer/1558751469) | [Atomic United LLC](https://appshunter.io/developer/1821236151) |

## What reviewers say

### Shield 100SA

[App page](https://appshunter.io/ios/app/shield-100sa/id6740347706)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atomic Jiu

[App page](https://appshunter.io/ios/app/atomic-jiu-jitsu/id6747397243)

Manage your martial arts training and membership conveniently from your phone. Check into classes, update payment details, book sessions, and access exclusive content.

**Highlights:** Class check-in, Account management, Payment updates, Session booking, Content library access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shield 100SA free?

Shield 100SA is free to download, with no in-app purchases.

### Is Atomic Jiu free?

Atomic Jiu is free to download, with no in-app purchases.

### Do Shield 100SA or Atomic Jiu have ads?

Neither Shield 100SA nor Atomic Jiu shows ads.

### Which is updated more often, Shield 100SA or Atomic Jiu?

Shield 100SA ships an update every 10 days, and Atomic Jiu every 2 months. Most recently, Shield 100SA was updated on September 30, 2026 and Atomic Jiu on September 14, 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.*