# GutSpy vs Zero Migraine

The clearest difference is in-app purchases: Zero Migraine at none against GutSpy's 5. GutSpy's advantage is ads (none vs shown) and iOS requirement (16.4 vs 26.5). On price, update cadence and device support there is nothing between them.

Both are free to download. GutSpy sells 5 in-app purchases, starting at $2.99 per month. Zero Migraine asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | GutSpy | Zero Migraine |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 79 MB | 19 MB |
| Requires iOS | **16.4** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [404X LABS, UNIPESSOAL LDA](https://appshunter.io/developer/1788079052) | [Samuel Sanchez](https://appshunter.io/developer/467936386) |

## What reviewers say

### GutSpy

[App page](https://appshunter.io/ios/app/gutspy-ibs-and-stool-tracker/id6740040702)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English US | $2.99 | per month |
| English US | $3.99 | per month |
| English US | $24.99 | per year |
| English US | $39.99 | per year |
| Program Report | $5.99 | one-time |


### Zero Migraine

[App page](https://appshunter.io/ios/app/zero-migraine/id6781183288)

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

**In-app purchases:** none


## Frequently asked questions

### Is GutSpy free?

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

### Is Zero Migraine free?

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

### Do GutSpy or Zero Migraine have ads?

Zero Migraine shows ads; GutSpy does not.

### Which is updated more often, GutSpy or Zero Migraine?

GutSpy ships an update every 2 weeks, and Zero Migraine every 2 weeks. Most recently, GutSpy was updated on November 4, 2026 and Zero Migraine on October 28, 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.*