# Digimarc Validate vs Sentinel

The clearest difference is in-app purchases: Digimarc Validate at none against Sentinel's 2. Sentinel's advantage is update cadence (weekly vs every 6 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Sentinel sells 2 in-app purchases, starting at $29.99 per month. Digimarc Validate asks for nothing beyond the download.

Digimarc Validate ships an update every 6 weeks, Sentinel weekly. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Digimarc Validate | Sentinel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/sentinel-field-intelligence/id6761101801/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 43 MB |
| Requires iOS | 26.2 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Digimarc](https://appshunter.io/developer/348205304) | [Eija Huttunen](https://appshunter.io/developer/1887793867) |

## What reviewers say

### Digimarc Validate

[App page](https://appshunter.io/ios/app/digimarc-validate/id6711345278)

**In-app purchases:** none


### Sentinel

[App page](https://appshunter.io/ios/app/sentinel-field-intelligence/id6761101801)

An AI-assisted platform for investigators and security professionals to gather, verify, and structure intelligence from public and government sources. It helps identify confirmed findings, uncertainties, and next verification steps.

**Highlights:** AI-assisted intelligence gathering, Public and government source research, Automated wanted and sanctions screening, Entity resolution and image forensics, Case management and field notes, Professional reporting with branding

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sentinel Solo | $29.99 | per month |
| Sentinel Pro | $79.99 | per month |


## Frequently asked questions

### Is Digimarc Validate free?

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

### Is Sentinel free?

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

### Do Digimarc Validate or Sentinel have ads?

Neither Digimarc Validate nor Sentinel shows ads.

### Which is updated more often, Digimarc Validate or Sentinel?

Digimarc Validate ships an update every 6 weeks, and Sentinel weekly. Most recently, Digimarc Validate was updated on September 30, 2026 and Sentinel on October 14, 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.*