# DR16.4 vs Signals

The clearest difference is update cadence: Signals at every 6 days against DR16.4's every 3 weeks. DR16.4's advantage is iOS requirement (9.3 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.

DR16.4 ships an update every 3 weeks, Signals every 6 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DR16.4 | Signals |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 8 MB | 11 MB |
| Requires iOS | **9.3** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [SEIKAKU](https://appshunter.io/developer/860317297) | [Kornel Kaulics](https://appshunter.io/developer/1501407664) |

## What reviewers say

### DR16.4

[App page](https://appshunter.io/ios/app/dr164/id1441403186)

**Features:** macOS Compatibility

**In-app purchases:** none


### Signals

[App page](https://appshunter.io/ios/app/signals-at/id6504778142)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DR16.4 free?

DR16.4 is free to download, with no in-app purchases.

### Is Signals free?

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

### Do DR16.4 or Signals have ads?

Neither DR16.4 nor Signals shows ads.

### Which is updated more often, DR16.4 or Signals?

DR16.4 ships an update every 3 weeks, and Signals every 6 days. Most recently, DR16.4 was updated on October 26, 2026 and Signals on October 25, 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.*