# NJRecalls vs Swarming Simulator

The clearest difference is update cadence: NJRecalls at every 2 months against Swarming Simulator's every 35 months. NJRecalls also leads on iOS requirement (15.6 vs 18.6). 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.

NJRecalls ships an update every 2 months, Swarming Simulator every 35 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NJRecalls | Swarming Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 35 months |
| Monetization | Free | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Kohei Natori](https://appshunter.io/developer/1286331912) | [GSEC Inc.](https://appshunter.io/developer/1541952205) |

## What reviewers say

### NJRecalls

[App page](https://appshunter.io/ios/app/njrecalls/id791217018)

Unofficial app for browsing Japanese translations of "Ninja Slayer," a popular webcomic. Access content published via the @NJSLYR Twitter account.

**Highlights:** Browse "Ninja Slayer" translations, Unofficial content access, Japanese text support, Content from @NJSLYR Twitter

**In-app purchases:** none


### Swarming Simulator

[App page](https://appshunter.io/ios/app/swarming-simulator/id1541952203)

**In-app purchases:** none


## Frequently asked questions

### Is NJRecalls free?

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

### Is Swarming Simulator free?

Swarming Simulator is free to download, with no in-app purchases.

### Do NJRecalls or Swarming Simulator have ads?

Neither NJRecalls nor Swarming Simulator shows ads.

### Which is updated more often, NJRecalls or Swarming Simulator?

NJRecalls ships an update every 2 months, and Swarming Simulator every 35 months. Most recently, NJRecalls was updated on October 19, 2026 and Swarming Simulator 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.*