# iCrucible vs Sentinel

The clearest difference is update cadence: Sentinel at weekly against iCrucible's every 5 months. Sentinel also leads on iOS requirement (15.1 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iCrucible sells 8 in-app purchases, starting at $2.99 per month and Sentinel sells 2 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

iCrucible ships an update every 5 months, Sentinel weekly. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | iCrucible | 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 | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 172 MB | 43 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [RIMCS LLC](https://appshunter.io/developer/1695388876) | [Eija Huttunen](https://appshunter.io/developer/1887793867) |

## What reviewers say

### iCrucible

[App page](https://appshunter.io/ios/app/icrucible/id6468351223)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $2.99 | per month |
| Premium | $4.99 | per month |
| Standard | $29.99 | per year |
| Premium | $49.99 | per year |
| 500 Flame Gems | $4.99 | one-time |
| 2,500 Flame Gems | $23.99 | one-time |
| 5,000 Flame Gems | $46.99 | one-time |
| 10,000 Flame Gems | $91.90 | one-time |


### 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 iCrucible free?

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

### Is Sentinel free?

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

### Do iCrucible or Sentinel have ads?

Neither iCrucible nor Sentinel shows ads.

### Which is updated more often, iCrucible or Sentinel?

iCrucible ships an update every 5 months, and Sentinel weekly. Most recently, iCrucible was updated on October 5, 2026 and Sentinel on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*