# Drought Pipeline Project vs 369Sonic

The clearest difference is update cadence: 369Sonic at every 9 days against Drought Pipeline Project's every 8 months. Drought Pipeline Project's advantage is iOS requirement (11.0 vs 13.0). 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.

Drought Pipeline Project ships an update every 8 months, 369Sonic every 9 days. The most recent releases landed on December 8, 2025 and October 27, 2026 respectively.

## The numbers

| Metric | Drought Pipeline Project | 369Sonic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 9 days** |
| Size | 20 MB | 46 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kiewit Corporation](https://appshunter.io/developer/1125546506) | [369sonic s.r.o.](https://appshunter.io/developer/1740955289) |

## What reviewers say

### Drought Pipeline Project

[App page](https://appshunter.io/ios/app/drought-pipeline-project/id1538466477)

**Features:** macOS Compatibility

**In-app purchases:** none


### 369Sonic

[App page](https://appshunter.io/ios/app/369sonic/id6496356519)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Drought Pipeline Project free?

Drought Pipeline Project is free to download, with no in-app purchases.

### Is 369Sonic free?

369Sonic is free to download, with no in-app purchases.

### Do Drought Pipeline Project or 369Sonic have ads?

Neither Drought Pipeline Project nor 369Sonic shows ads.

### Which is updated more often, Drought Pipeline Project or 369Sonic?

Drought Pipeline Project ships an update every 8 months, and 369Sonic every 9 days. Most recently, Drought Pipeline Project was updated on December 8, 2025 and 369Sonic on October 27, 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.*