# Twinby vs Stack B

The clearest difference is ads: Stack B at none against Twinby's shown. Stack B also leads on update cadence (every 6 days vs every 3 weeks) and review sentiment (95% vs 85%). Twinby's advantage is ratings volume (2.2K vs 18). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Twinby sells 16 in-app purchases, starting at $3.99 per 7 days and Stack B sells 1 in-app purchase, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Twinby against 4.4 for Stack B. That said, the two scores are not equally well evidenced: Twinby has 2.2K ratings behind it against 18, so its average is the more settled of the two. Written reviews are what separate them: 85% of Twinby's written reviews are positive against 95% of Stack B's.

Twinby ships an update every 3 weeks, Stack B every 6 days. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Twinby | Stack B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (2.2K ratings)](https://appshunter.io/ios/app/twinby-dating-and-compatibility/id1595084386/reviews) | [4.4 (18 ratings)](https://appshunter.io/ios/app/stack-b/id6761323360/reviews) |
| Number of ratings | **2.2K** | 18 |
| Positive reviews | 84.7% of reviews | **95.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 128 MB | 60 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [NEURALAB TECH SOLUTIONS](https://appshunter.io/developer/1595084388) | [Artem Li](https://appshunter.io/developer/1540610388) |

## What reviewers say

### Twinby

[App page](https://appshunter.io/ios/app/twinby-dating-and-compatibility/id1595084386)

This app uses scientific algorithms and personality tests to help you find compatible partners. It analyzes data points and user behavior to suggest matches, and allows you to check compatibility with existing relationships.

**Highlights:** Scientific compatibility analysis, Personality tests, Self-discovery insights, Relationship compatibility checks, Entertaining conversation starters, Invite friends and partners

**Features:** Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Twinby premium | $3.99 | per 7 days |
| Twinby premium | $7.99 | per month |
| Twinby premium | $14.99 | per 3 months |
| 1 week | $17.99 | per 7 days |
| 1 month | $29.99 | per month |
| 3 months | $59.99 | per 3 months |
| 1 boost | $8.99 | one-time |
| Travel Mode | $8.99 | one-time |
| 5 superlikes | $9.99 | one-time |
| Travel Mode | $17.99 | one-time |
| 3 boosts | $24.99 | one-time |
| 12 superlikes | $29.99 | one-time |
| 5 boosts | $29.99 | one-time |
| 30 superlikes | $29.99 | one-time |
| 25 superlikes | $44.99 | one-time |
| 60 Superlikes | $44.99 | one-time |

**What reviewers like**

- 🚀 Smooth performance
- 💡 Interesting compatibility tests
- 👍 Convenient card-based system
- 🚀 Minimal competition in the market

**What reviewers complain about**

- 🐛 Frequent bugs and glitches
- 🤖 Presence of bots and fake profiles
- 💰 Paywall for basic features
- 🤔 Questionable moderation

**Reported bugs**

- Inability to send comments on user reports
- Repeated appearance of blocked profiles
- Inconsistent display of last login times
- Delayed message updates when app is backgrounded

**Requested features**

- Dark mode option
- Ability to re-take compatibility tests
- Filter by location/city
- Hide online status


### Stack B

[App page](https://appshunter.io/ios/app/stack-b/id6761323360)

Connect with fellow gamers to find teammates, share highlights, and manage your player profile. Offers in-app chat and specialized tools for popular games. Stay updated with notifications about user interest and app news.

**Highlights:** Find teammates by preference, Share and view gaming highlights, Create detailed player profiles, In-app chat functionality, VALORANT-specific game tools, Push notifications for engagement

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $1.49 | per month |


## Frequently asked questions

### Is Twinby free?

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

### Is Stack B free?

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

### Which has better reviews, Twinby or Stack B?

Twinby and Stack B are both rated 4.4 out of 5 on the App Store, from 2.2K and 18 ratings respectively.

### Do Twinby or Stack B have ads?

Twinby shows ads; Stack B does not.

### Which is updated more often, Twinby or Stack B?

Twinby ships an update every 3 weeks, and Stack B every 6 days. Most recently, Twinby was updated on October 17, 2026 and Stack B 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.*