# プリペイドSIM屋さん vs Soft Signal

The clearest difference is update cadence: Soft Signal at every 3 days against プリペイドSIM屋さん's every 9 days. Soft Signal also leads on iOS requirement (15.0 vs 17.0). 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.

プリペイドSIM屋さん ships an update every 9 days, Soft Signal every 3 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | プリペイドSIM屋さん | Soft Signal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Size | 26 MB | 68 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [LinkMobile k.k](https://appshunter.io/developer/1896739818) | [Kenta Uematsu](https://appshunter.io/developer/1657820160) |

## What reviewers say

### プリペイドSIM屋さん

[App page](https://appshunter.io/ios/app/sim/id6770400655)

**In-app purchases:** none


### Soft Signal

[App page](https://appshunter.io/ios/app/soft-signal/id6801171414)

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

**In-app purchases:** none


## Frequently asked questions

### Is プリペイドSIM屋さん free?

プリペイドSIM屋さん is free to download, with no in-app purchases.

### Is Soft Signal free?

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

### Do プリペイドSIM屋さん or Soft Signal have ads?

Neither プリペイドSIM屋さん nor Soft Signal shows ads.

### Which is updated more often, プリペイドSIM屋さん or Soft Signal?

プリペイドSIM屋さん ships an update every 9 days, and Soft Signal every 3 days. Most recently, プリペイドSIM屋さん was updated on October 31, 2026 and Soft Signal on November 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*