# Sentry vs Unspy

The clearest difference is in-app purchases: Sentry at none against Unspy's 4. Sentry also leads on update cadence (every 5 days vs every 11 days) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Unspy sells 4 in-app purchases, starting at $4.99 per 7 days. Sentry asks for nothing beyond the download.

Sentry ships an update every 5 days, Unspy every 11 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sentry | Unspy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 11 days |
| Size | 48 MB | 10 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [General Retailing Technologies](https://appshunter.io/developer/1484751650) | [Akbarali Xasanov](https://appshunter.io/developer/6775700244) |

## What reviewers say

### Sentry

[App page](https://appshunter.io/ios/app/sentry/id1484751651)

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

**In-app purchases:** none


### Unspy

[App page](https://appshunter.io/ios/app/unspy-hidden-camera-detector/id6790170844)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sentri Pro Weekly | $4.99 | per 7 days |
| Sentri Pro | $9.99 | per month |
| Unspy Pro Yearly | $29.99 | per year |
| Unspy Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Sentry free?

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

### Is Unspy free?

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

### Do Sentry or Unspy have ads?

Neither Sentry nor Unspy shows ads.

### Which is updated more often, Sentry or Unspy?

Sentry ships an update every 5 days, and Unspy every 11 days. Most recently, Sentry was updated on November 3, 2026 and Unspy on November 6, 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.*