# ISN Sentinel vs Pylontech Pelio

The clearest difference is update cadence: ISN Sentinel at every 5 months against Pylontech Pelio's every 21 months. ISN Sentinel 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.

ISN Sentinel ships an update every 5 months, Pylontech Pelio every 21 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ISN Sentinel | Pylontech Pelio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 21 months |
| Monetization | — | Free |
| Size | 7 MB | 36 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Aleut Community of St. Paul Island Tribal Government](https://appshunter.io/developer/1329178887) | [Pylon Technologies Co., Ltd.](https://appshunter.io/developer/1639502795) |

## What reviewers say

### ISN Sentinel

[App page](https://appshunter.io/ios/app/isn-sentinel/id1329189735)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pylontech Pelio

[App page](https://appshunter.io/ios/app/pylontech-pelio/id1639502793)

Monitor your Pylontech equipment and power consumption in real-time from anywhere. This platform also offers back-office management for faster problem resolution and continuous updates for an improved user experience.

**Highlights:** Real-time equipment monitoring, Power consumption tracking, Back-office management, Faster problem resolution, Continuous updates

**In-app purchases:** none


## Frequently asked questions

### Is ISN Sentinel free?

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

### Is Pylontech Pelio free?

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

### Do ISN Sentinel or Pylontech Pelio have ads?

Neither ISN Sentinel nor Pylontech Pelio shows ads.

### Which is updated more often, ISN Sentinel or Pylontech Pelio?

ISN Sentinel ships an update every 5 months, and Pylontech Pelio every 21 months. Most recently, ISN Sentinel was updated on November 2, 2026 and Pylontech Pelio 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.*