# Thunder & Lightning vs Dwell Secure

The clearest difference is in-app purchases: Thunder & Lightning at none against Dwell Secure's 12. Thunder & Lightning also leads on iOS requirement (8.0 vs 15.0). Dwell Secure's advantage is update cadence (fortnightly vs every 128 months) and review sentiment (100% vs 87%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Dwell Secure sells 12 in-app purchases, starting at $4.99 per month. Thunder & Lightning asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Thunder & Lightning against 5.0 for Dwell Secure. Both are backed by a comparable volume of ratings — 7 and 6 respectively. Written reviews are what separate them: 87% of Thunder & Lightning's written reviews are positive against 100% of Dwell Secure's.

Thunder & Lightning ships an update every 128 months, Dwell Secure fortnightly. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Thunder & Lightning | Dwell Secure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (7 ratings)](https://appshunter.io/ios/app/thunder-and-lightning/id287959052/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/dwell-secure/id1578841088/reviews)** |
| Number of ratings | **7** | 6 |
| Positive reviews | 87.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 128 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 22 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bryan Figler](https://appshunter.io/developer/287217534) | [Chasing Bacon LLC](https://appshunter.io/developer/1578841090) |

## What reviewers say

### Thunder & Lightning

[App page](https://appshunter.io/ios/app/thunder-and-lightning/id287959052)

Measure the distance to loud events like thunder, fireworks, or rocket launches by timing the visual and auditory cues. Adjust for temperature for greater accuracy and choose your preferred units. It also functions as a stopwatch, speed-of-sound calculator, and unit converter.

**Highlights:** Distance measurement to sound events, Temperature adjustment for accuracy, U.S./Imperial and metric units, Stopwatch functionality, Speed-of-sound calculator, Fahrenheit/Celsius converter

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 💰 Free with no ads
- 🎯 Does exactly what it says
- 💡 Useful for weather watchers
- 👨‍👩‍👧‍👦 Fun for kids and families

**What reviewers complain about**

- ⏳ App was down for some time
- 👴 Dated interface/functionality
- 🤷‍♂️ Trivial or pointless to some users

**Reported bugs**

- App crash
- App does not work anymore

**Requested features**

- Option to have both miles per hour and centigrade
- Switch to a single button for lightning and thunder
- Allow typing temperature instead of slider
- Display average time and distance of records
- Use light sensor and camera for lightning detection


### Dwell Secure

[App page](https://appshunter.io/ios/app/dwell-secure/id1578841088)

Manage property emergencies and building systems with this comprehensive utility app. Store vital information about utility shutoffs, appliances, and maintenance schedules, with easy access during emergencies or for routine upkeep. Share crucial data with household members and tenants for enhanced preparedness.

**Highlights:** Emergency preparedness, Utility shutoff management, Appliance tracking, Maintenance scheduling, Service technician contacts, Information sharing, Mobile property support

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Package | $4.99 | per month |
| Business Package | $19.99 | per month |
| Bundle of Five | $19.99 | per month |
| Bundle of Ten | $29.99 | per month |
| Bundle of Twenty | $49.99 | per month |
| Bundle of Fifty | $99.99 | per month |
| Personal Package | $4.99 | one-time |
| Business Package | $19.99 | one-time |
| Bundle of Five | $19.99 | one-time |
| Bundle of Ten | $29.99 | one-time |
| Bundle of Twenty | $49.99 | one-time |
| Bundle of Fifty | $99.99 | one-time |


## Frequently asked questions

### Is Thunder & Lightning free?

Thunder & Lightning is free to download, with no in-app purchases.

### Is Dwell Secure free?

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

### Which has better reviews, Thunder & Lightning or Dwell Secure?

Dwell Secure is rated higher. Thunder & Lightning averages 4.9 out of 5 from 7 ratings, while Dwell Secure averages 5.0 from 6 ratings.

### Do Thunder & Lightning or Dwell Secure have ads?

Neither Thunder & Lightning nor Dwell Secure shows ads.

### Which is updated more often, Thunder & Lightning or Dwell Secure?

Thunder & Lightning ships an update every 128 months, and Dwell Secure fortnightly. Most recently, Thunder & Lightning was updated on October 22, 2026 and Dwell Secure on October 14, 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.*