# GastroTimer vs AcidLog

GastroTimer and AcidLog are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. GastroTimer sells 1 one-off in-app purchase and AcidLog sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

GastroTimer ships an update monthly, AcidLog every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GastroTimer | AcidLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/acidlog-reflux-trigger-diary/id6790413892/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 35 MB | 45 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Moodmango Company Limited](https://appshunter.io/developer/6782648217) | [DJUMP, MB](https://appshunter.io/developer/1861303154) |

## What reviewers say

### GastroTimer

[App page](https://appshunter.io/ios/app/gastrotimer-meal-reminder/id6782648215)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GastroTimer Pro | $2.99 | one-time |


### AcidLog

[App page](https://appshunter.io/ios/app/acidlog-reflux-trigger-diary/id6790413892)

This app helps you identify personal acid reflux triggers by logging meals and symptoms. It uses an on-device engine to correlate foods with your reported discomfort, providing a ranked list of likely culprits. Focus on what bothers you, not generic avoidance lists.

**Highlights:** Log meals and rate symptoms, On-device correlation engine, Personalized trigger list, Offline logging capability, Doctor-ready PDF reports, No advertisements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is GastroTimer free?

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

### Is AcidLog free?

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

### Do GastroTimer or AcidLog have ads?

Neither GastroTimer nor AcidLog shows ads.

### Which is updated more often, GastroTimer or AcidLog?

GastroTimer ships an update monthly, and AcidLog every 3 weeks. Most recently, GastroTimer was updated on November 5, 2026 and AcidLog on October 31, 2026.

---

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