# Shadowspec vs GasOwl

The clearest difference is review sentiment: GasOwl at 50% against Shadowspec's 0%. GasOwl also leads on update cadence (every 4 months vs every 21 months). Shadowspec's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price there is nothing between them.

Both are free to download. GasOwl sells 6 in-app purchases, starting at $3.49 per month. Shadowspec asks for nothing beyond the download.

Shadowspec ships an update every 21 months, GasOwl every 4 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Shadowspec | GasOwl |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/shadowspec/id1540020046/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 68 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Unicrest Group Limited](https://appshunter.io/developer/1540020048) | [Vention Lab Limited](https://appshunter.io/developer/1777928813) |

## What reviewers say

### Shadowspec

[App page](https://appshunter.io/ios/app/shadowspec/id1540020046)

Control your smart battery and lights with this app. Features include auto timers, dimmer settings, and countdown functionality. Manage multiple devices from a single interface.

**Highlights:** Auto timer functions, Dimmer settings, Countdown timer, On and off switch, Control multiple lights and umbrellas

**In-app purchases:** none


### GasOwl

[App page](https://appshunter.io/ios/app/gasowl/id1556795628)

This app monitors your gas bottle levels and usage, providing alerts for low supply, unusual consumption, and potential leaks. It integrates with a smart scale to offer automated reordering and detailed energy analysis.

**Highlights:** Gas bottle level monitoring, Usage analysis, Automated ordering, Leak detection alerts, Bottle delivery notifications, Energy usage insights

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GasOwl Essential Plan | $3.49 | per month |
| GasOwl Essential Plan (2) | $6.99 | per month |
| GasOwl Premium Plan | $9.99 | per month |
| GasOwl Essential Plan (3) | $10.49 | per month |
| GasOwl Premium Plan (2) | $19.99 | per month |
| GasOwl Premium Plan (3) | $29.99 | per month |


## Frequently asked questions

### Is Shadowspec free?

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

### Is GasOwl free?

GasOwl is free to download, with in-app purchases available.

### Do Shadowspec or GasOwl have ads?

GasOwl shows ads; Shadowspec does not.

### Which is updated more often, Shadowspec or GasOwl?

Shadowspec ships an update every 21 months, and GasOwl every 4 months. Most recently, Shadowspec was updated on October 2, 2026 and GasOwl on October 4, 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.*