# PG Sentinel Go vs SeaLife Micro 3+

The clearest difference is update cadence: SeaLife Micro 3+ at every 7 months against PG Sentinel Go's every 48 months. SeaLife Micro 3+ also leads on iOS requirement (11.0 vs 15.0). 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.

PG Sentinel Go ships an update every 48 months, SeaLife Micro 3+ every 7 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PG Sentinel Go | SeaLife Micro 3+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.7 (34 ratings)](https://appshunter.io/ios/app/sealife-micro-3-plus/id1477025094/reviews)** |
| Number of ratings | — | **34** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 7 months** |
| Monetization | — | Free |
| Size | 23 MB | 206 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Proguard Technologies, LLC](https://appshunter.io/developer/1195697398) | [Ability Enterprise Co., Ltd.](https://appshunter.io/developer/773543790) |

## What reviewers say

### PG Sentinel Go

[App page](https://appshunter.io/ios/app/pg-sentinel-go/id1195697399)

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

**In-app purchases:** none


### SeaLife Micro 3+

[App page](https://appshunter.io/ios/app/sealife-micro-3-plus/id1477025094)

Wirelessly connect your underwater camera to your iPhone or iPad to view, download, and manage photos and videos. The app also allows for live streaming and remote camera control, ensuring you don't miss a moment underwater.

**Highlights:** Wireless camera connection, View and download photos/videos, Firmware updates, Live streaming view, Remote capture and settings control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PG Sentinel Go free?

PG Sentinel Go is free to download, with no in-app purchases.

### Is SeaLife Micro 3+ free?

SeaLife Micro 3+ is free to download, with no in-app purchases.

### Do PG Sentinel Go or SeaLife Micro 3+ have ads?

Neither PG Sentinel Go nor SeaLife Micro 3+ shows ads.

### Which is updated more often, PG Sentinel Go or SeaLife Micro 3+?

PG Sentinel Go ships an update every 48 months, and SeaLife Micro 3+ every 7 months. Most recently, PG Sentinel Go was updated on November 6, 2026 and SeaLife Micro 3+ on November 3, 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.*