# Symptom Detective vs Allergy Log

The clearest difference is rating: Allergy Log at 4.0 against Symptom Detective's 3.0. Allergy Log also leads on monetization model (free with in-app purchases vs subscription). Symptom Detective's advantage is ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Symptom Detective sells 2 in-app purchases, starting at $14.99 per month and Allergy Log sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Allergy Log holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Symptom Detective | Allergy Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/symptom-detective/id6630364529/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/allergy-log-intolerance-diary/id6738300083/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 26 MB | 87 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BunnyCo, LLC](https://appshunter.io/developer/1738143771) | [OriginX](https://appshunter.io/developer/1725593771) |

## What reviewers say

### Symptom Detective

[App page](https://appshunter.io/ios/app/symptom-detective/id6630364529)

Track the connection between your diet and physical symptoms. This tool helps you identify potential food triggers and their impact on your well-being. It's designed for informational purposes and not as a substitute for professional medical advice.

**Highlights:** Log food intake, Record symptoms, Identify food-symptom correlations, Health tracking, Dietary analysis

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $14.99 | per month |
| Monthly Family Plan | $29.99 | per month |


### Allergy Log

[App page](https://appshunter.io/ios/app/allergy-log-intolerance-diary/id6738300083)

Track food reactions and environmental triggers to understand your health better. Log meals, symptoms, and use AI to scan ingredients from photos. Visualize trends with charts and export data for healthcare providers.

**Highlights:** Personalized allergy tracking, Smart food logging, AI ingredient scanning, Bristol Stool Scale integration, Visual data representation, Data export, Customizable themes

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly Trials | $69.99 | per year |
| Yearly | $89.99 | per year |


## Frequently asked questions

### Is Symptom Detective free?

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

### Is Allergy Log free?

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

### Which has better reviews, Symptom Detective or Allergy Log?

Allergy Log is rated higher. Symptom Detective averages 3.0 out of 5 from 2 ratings, while Allergy Log averages 4.0 from 4 ratings.

### Do Symptom Detective or Allergy Log have ads?

Allergy Log shows ads; Symptom Detective does not.

### Which is updated more often, Symptom Detective or Allergy Log?

Symptom Detective ships an update every 3 weeks, and Allergy Log every 3 weeks. Most recently, Symptom Detective was updated on November 4, 2026 and Allergy Log on October 30, 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.*