# OTRAPUSE vs SoStack

The clearest difference is review sentiment: SoStack at 100% against OTRAPUSE's 25%. SoStack also leads on rating (5.0 vs 4.1) and in-app purchases (none vs 5). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. OTRAPUSE sells 5 in-app purchases, starting at $6.99 per month. SoStack asks for nothing beyond the download.

SoStack holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 25% of OTRAPUSE's written reviews are positive against 100% of SoStack's.

OTRAPUSE ships an update every 2 weeks, SoStack every 3 weeks. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | OTRAPUSE | SoStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/otrapuse/id956456728/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sostack/id6759353874/reviews)** |
| Number of ratings | **8** | 3 |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 71 MB | 43 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Hansa Interactive](https://appshunter.io/developer/956456727) | [SOSTACK LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1878252494) |

## What reviewers say

### OTRAPUSE

[App page](https://appshunter.io/ios/app/otrapuse/id956456728)

This is a popular dating platform in Latvia, connecting users for serious relationships or casual chats. It features a large, active community, detailed search filters, and secure messaging for a safe and enjoyable experience.

**Highlights:** Popular dating platform in Latvia, Large and active user community, Detailed search filters, Secure and private messaging, User-friendly interface

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otrapuse.lv | $6.99 | per month |
| 3 month subscription | $12.99 | per 3 months |
| 6 month PREMIUM subscription | $22.99 | per 6 months |
| VIP subscription | $24.99 | per month |
| Profile highlighting (1 day) | $0.99 | one-time |


### SoStack

[App page](https://appshunter.io/ios/app/sostack/id6759353874)

This app facilitates group communication and coordination with private chats and shared calendars. Plan events, manage RSVPs, and discover local public groups for updates. It prioritizes user control and privacy with in-app account deletion.

**Highlights:** Private group messaging, Shared calendars and events, RSVP and planning tools, Follow verified public groups, Invite via SMS, Location-based discovery

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

**In-app purchases:** none


## Frequently asked questions

### Is OTRAPUSE free?

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

### Is SoStack free?

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

### Which has better reviews, OTRAPUSE or SoStack?

SoStack is rated higher. OTRAPUSE averages 4.1 out of 5 from 8 ratings, while SoStack averages 5.0 from 3 ratings.

### Do OTRAPUSE or SoStack have ads?

Neither OTRAPUSE nor SoStack shows ads.

### Which is updated more often, OTRAPUSE or SoStack?

OTRAPUSE ships an update every 2 weeks, and SoStack every 3 weeks. Most recently, OTRAPUSE was updated on September 25, 2026 and SoStack on September 23, 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.*