# Lightning Simulator vs Gut Health Tracker

The clearest difference is in-app purchases: Gut Health Tracker at none against Lightning Simulator's 2. Lightning Simulator's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Lightning Simulator sells 2 one-off in-app purchases. Gut Health Tracker asks for nothing beyond the download.

Lightning Simulator ships an update every 4 months, Gut Health Tracker every 3 months. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Lightning Simulator | Gut Health Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (102 ratings)](https://appshunter.io/ios/app/lightning-simulator/id930358531/reviews)** | — |
| Number of ratings | **102** | — |
| Positive reviews | 86.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple TV** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Foxbit Software Ltd.](https://appshunter.io/developer/919379298) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### Lightning Simulator

[App page](https://appshunter.io/ios/app/lightning-simulator/id930358531)

Simulate a lightning storm with visual effects using your device's backlight and LED flash, accompanied by realistic thunder audio. Customize storm distance and set sleep timers for a unique ambiance.

**Highlights:** Backlight and LED flash simulation, Realistic thunder audio, 5 unique storm types, Customizable storm distance, Adjustable sleep timers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Storm Expansion Pack | $1.99 | one-time |
| Lightning Pro | $1.99 | one-time |


### Gut Health Tracker

[App page](https://appshunter.io/ios/app/gut-health-tracker-ibs-diary/id6772262776)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lightning Simulator free?

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

### Is Gut Health Tracker free?

Gut Health Tracker is free to download, with no in-app purchases.

### Do Lightning Simulator or Gut Health Tracker have ads?

Neither Lightning Simulator nor Gut Health Tracker shows ads.

### Which is updated more often, Lightning Simulator or Gut Health Tracker?

Lightning Simulator ships an update every 4 months, and Gut Health Tracker every 3 months. Most recently, Lightning Simulator was updated on October 29, 2026 and Gut Health Tracker on October 31, 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.*