# シグナル vs IPO Tracker

The clearest difference is iOS requirement: シグナル at 15.0 against IPO Tracker's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

シグナル ships an update every 6 days, IPO Tracker every 10 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | シグナル | IPO Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 10 days |
| Size | 85 MB | 33 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YINGDONG LIU](https://appshunter.io/developer/1706285656) | [Takayuki Goto](https://appshunter.io/developer/1507096954) |

## What reviewers say

### シグナル

[App page](https://appshunter.io/ios/app/id6759820342)

**In-app purchases:** none


### IPO Tracker

[App page](https://appshunter.io/ios/app/ipo-tracker/id6773154228)

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

**In-app purchases:** none


## Frequently asked questions

### Is シグナル free?

シグナル is free to download, with no in-app purchases.

### Is IPO Tracker free?

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

### Do シグナル or IPO Tracker have ads?

Neither シグナル nor IPO Tracker shows ads.

### Which is updated more often, シグナル or IPO Tracker?

シグナル ships an update every 6 days, and IPO Tracker every 10 days. Most recently, シグナル was updated on October 31, 2026 and IPO Tracker 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.*