# FCV Sentinel vs Theralog

The clearest difference is in-app purchases: FCV Sentinel at none against Theralog's 3. FCV Sentinel also leads on iOS requirement (12.1 vs 16.0). Theralog's advantage is update cadence (every 10 days vs every 5 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Theralog sells 3 in-app purchases, starting at $2.99 per 7 days. FCV Sentinel asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for FCV Sentinel against 5.0 for Theralog. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

FCV Sentinel ships an update every 5 weeks, Theralog every 10 days. The most recent releases landed on September 9, 2026 and June 6, 2026 respectively.

## The numbers

| Metric | FCV Sentinel | Theralog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/fcv-sentinel/id6450519647/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/theralog/id6451499105/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | **Free** | Freemium |
| Size | 36 MB | 25 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Guardian AIngel, Inc](https://appshunter.io/developer/1560589611) | [TabTab LLC](https://appshunter.io/developer/1476661769) |

## What reviewers say

### FCV Sentinel

[App page](https://appshunter.io/ios/app/fcv-sentinel/id6450519647)

This app monitors employee health by analyzing cough patterns to detect potential illness. It provides organizations with a dashboard for early detection of staffing issues and helps prevent the spread of sickness in the workplace. Users can also log symptoms and diary entries for personal wellness tracking.

**Highlights:** Cough analysis for health monitoring, Employee health status tracking, Customizable organizational dashboard, Early warning system for potential illness, Symptom and diary logging, Secure data sharing options

**In-app purchases:** none


### Theralog

[App page](https://appshunter.io/ios/app/theralog/id6451499105)

Engage in supportive conversations with an AI companion designed to help you manage stress and anxiety. Explore evidence-based techniques and personalized coping strategies for emotional well-being. This tool offers a safe space for self-expression and insights into your feelings.

**Highlights:** Intelligent conversations, Personalized support, Evidence-based techniques, Emotional check-ins, Safe and confidential, 24/7 availability

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Access | $2.99 | per 7 days |
| Monthly Pro Access | $6.99 | per month |
| Yearly Pro | $69.99 | per year |


## Frequently asked questions

### Is FCV Sentinel free?

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

### Is Theralog free?

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

### Which has better reviews, FCV Sentinel or Theralog?

FCV Sentinel and Theralog are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do FCV Sentinel or Theralog have ads?

Neither FCV Sentinel nor Theralog shows ads.

### Which is updated more often, FCV Sentinel or Theralog?

FCV Sentinel ships an update every 5 weeks, and Theralog every 10 days. Most recently, FCV Sentinel was updated on September 9, 2026 and Theralog on June 6, 2026.

---

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