# iSOS App vs Locky

The clearest difference is review sentiment: Locky at 55% against iSOS App's 0%. Locky also leads on rating (4.5 vs 1.0) and ratings volume (497 vs 2). iSOS App's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Locky sells 6 in-app purchases, starting at $1.99 per 7 days. iSOS App asks for nothing beyond the download.

Locky holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Locky has 497 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of iSOS App's written reviews are positive against 55% of Locky's.

iSOS App ships an update every 3 weeks, Locky every 2 months. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | iSOS App | Locky |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/isos-app/id1567187705/reviews) | **[4.5 (497 ratings)](https://appshunter.io/ios/app/locky-wallpapers-depth-effect/id6443738170/reviews)** |
| Number of ratings | 2 | **497** |
| Positive reviews | 0.0% of reviews | **54.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 53 MB | 112 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Garth Dahl](https://appshunter.io/developer/1497944634) | [RAMAN LAPATKO](https://appshunter.io/developer/1648910042) |

## What reviewers say

### iSOS App

[App page](https://appshunter.io/ios/app/isos-app/id1567187705)

This emergency alert app helps you reach out to pre-selected contacts with a custom message and your current location when you are in danger or need assistance. It offers nine distinct emergency options for various situations, all accessible through a user-friendly interface.

**Highlights:** Nine emergency options, Customizable emergency messages, Automatic calls and SMS alerts, Real-time location sharing, User-friendly interface, No advertisements

**In-app purchases:** none


### Locky

[App page](https://appshunter.io/ios/app/locky-wallpapers-depth-effect/id6443738170)

Personalize your iPhone's lock screen with stunning depth effect wallpapers and customizable clock styles. Automatically update your background daily or hourly to keep your device looking fresh and unique. Easy to use for all iOS users.

**Highlights:** Depth effect wallpapers, Customizable clock styles, Personal message addition, Automatic wallpaper changes, Live wallpapers added weekly, Dynamic themes

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $1.99 | per 7 days |
| Premium Access | $1.99 | per 7 days |
| Premium Access | $5.99 | per month |
| Premium Access | $5.99 | per month |
| Premium Access | $18.99 | per year |
| Premium Access | $18.99 | per year |


## Frequently asked questions

### Is iSOS App free?

iSOS App is free to download, with no in-app purchases.

### Is Locky free?

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

### Which has better reviews, iSOS App or Locky?

Locky is rated higher. iSOS App averages 1.0 out of 5 from 2 ratings, while Locky averages 4.5 from 497 ratings.

### Do iSOS App or Locky have ads?

Locky shows ads; iSOS App does not.

### Which is updated more often, iSOS App or Locky?

iSOS App ships an update every 3 weeks, and Locky every 2 months. Most recently, iSOS App was updated on October 3, 2026 and Locky 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.*