# Dark18 vs SLN SECRET

The clearest difference is ads: SLN SECRET at none against Dark18's shown. SLN SECRET also leads on update cadence (every 2 days vs weekly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Dark18 sells 6 in-app purchases, starting at $4.99 per 7 days and SLN SECRET sells 1 in-app purchase, starting at $229.00 per month. Whichever you choose, the download price is not the number that matters.

Dark18 ships an update weekly, SLN SECRET every 2 days. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Dark18 | SLN SECRET |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (170 ratings)](https://appshunter.io/ios/app/dark18/id6749346497/reviews)** | — |
| Number of ratings | **170** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 130 MB | 35 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ana Lucila Gomez Navarro](https://appshunter.io/developer/1830136813) | [Laurentiu Stoiculescu](https://appshunter.io/developer/1896315958) |

## What reviewers say

### Dark18

[App page](https://appshunter.io/ios/app/dark18/id6749346497)

A private messenger offering secure end-to-end encrypted chats, HD voice and video calls, and community groups. Share updates through stories that disappear after 24 hours, all within a sleek, dark-themed interface. It's designed for users who prioritize privacy and freedom in their communication.

**Highlights:** End-to-end encrypted messaging, HD voice and video calls, Private and public groups, 24-hour disappearing stories, Dark-themed interface, Secure sync across devices

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $4.99 | per 7 days |
| Monthly Premium Access | $8.99 | per month |
| Yearly Premium Access | $90.99 | per year |
| Weekly Premium Access | $5.99 | one-time |
| Monthly Premium Access | $8.99 | one-time |
| Yearly Premium Access | $99.99 | one-time |


### SLN SECRET

[App page](https://appshunter.io/ios/app/sln-secret/id6777128905)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SECRET Monthly Access | $229.00 | per month |


## Frequently asked questions

### Is Dark18 free?

Dark18 is free to download, with in-app purchases available.

### Is SLN SECRET free?

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

### Do Dark18 or SLN SECRET have ads?

Dark18 shows ads; SLN SECRET does not.

### Which is updated more often, Dark18 or SLN SECRET?

Dark18 ships an update weekly, and SLN SECRET every 2 days. Most recently, Dark18 was updated on October 21, 2026 and SLN SECRET on October 7, 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.*