Comparison

Twinby vs Stack B

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Twinby

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
Read full description

BASED ON SCIENCE Twinby is all for the scientific approach to finding a partner. The algorithms analyze thousands of data points and the behavior in the app. We will find someone you'll love, not just like. No magic, only science. TAKE PERSONALITY TESTS Twinby tests reveal psychological characteristics and help to understand which date will go well. We have collected only the best tools for you - all tests are supported by scientific research. Each new test reveals new layers of personality. LEARN ABOUT YOURSELF We will give you more information about your personality and how it can mix with others. Explore yourself and we will help you to find your best match. CHECK COMPATIBILITY We can check your compatibility with anyone: new acquaintances from Twinby, your long-term partner, or friends. We calculate compatibility and answer the most burning questions about relationships. Now you will understand who will join you to a noisy party, and who to chill at home with. Choose what fits you best, and Twinby will tell you who to do it with. ENTERTAINING QUESTIONS Games, tests, template questions. We did all the work so you can have fun and effortless conversations. INVITE FRIENDS AND PARTNERS Send an invite and get to know each other better. Maybe your soulmate is already in your life, but you just don't know it yet. Twinby is not only a dating app but a perfect place for discovering yourself, your friends, or your lover. Your soulmate is close. We know it. End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Stack B

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
Read full description

Stack B — социально-игровое приложение для поиска тиммейтов, общения и доступа к игровым функциям прямо с телефона и не требует наличия VPN или других обходов для пользователей из РФ. Поиск тиммейтов — находите тиммейтов по человеческим критериям и игровым предпочтениям. Посты — публикуй и читай то, что интересно тебе и другим. Хайлайты — делись лучшими игровыми моментами и смотри моменты других игроков, лайкай, комментируй, делись. Профиль игрока — оформляйте анкету, рассказывайте о себе и показывайте, с кем и как вам комфортно играть. Чаты — общайтесь прямо внутри приложения без необходимости пользоваться другими сервисами. VALORANT-инструменты — проверяйте магазин скинов (чекер), ночной рынок, аксессуары, статистику аккаунта, стоимость инвентаря, таймеры обновлений и базу скинов. Уведомления — получайте push-уведомления и не пропускайте информацию о заинтересованности других пользователей в вашем профиле и полезной информации от нас, а даже если пропустили — всегда сможете в разделе ознакомиться с прошлыми уведомлениями. Stack B: https://stackb.net Privacy Policy: https://stackb.net/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Twinby4 screens
Stack B4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Twinby versus Stack B: the parameters behind the verdict, then further details
ParameterTwinbyStack B
PriceFreeFree
Rating4.4 (2.2K ratings)4.4 (18 ratings)
Positive reviews84.7% of reviews95.5% of reviews — better
Number of ratings2.2K — better18
Update frequencyEvery 3 weeksEvery 6 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size128 MB60 MB
Age rating17+17+
DeveloperNEURALAB TECH SOLUTIONSArtem Li

Customer experience

Twinby

All ratings2,183 ratings
Positive85.8%
Neutral1.6%
Negative12.6%
Written reviews1,970 reviews
Positive84.7%
Neutral2.0%
Negative13.2%

Stack B

All ratings18 ratings
Positive83.3%
Neutral5.6%
Negative11.1%
Written reviews22 reviews
Positive95.5%
Neutral4.5%
Negative0.0%

Bugs and requests

Twinby

Reported bugs

4 issues
  • 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

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

Stack B

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

Twinby

Subscriptions6
  • Twinby premium7 Days trial$3.997 Days
  • Twinby premium1 Month trial$7.991 Month
  • Twinby premium3 Months trial$14.993 Months
Show 3 more
  • 1 week$17.997 Days
  • 1 month$29.991 Month
  • 3 months$59.993 Months
One-time10
  • 1 boost$8.99
  • Travel Mode$8.99
  • 5 superlikes$9.99
Show 7 more
  • Travel Mode$17.99
  • 3 boosts$24.99
  • 12 superlikes$29.99
  • 5 boosts$29.99
  • 30 superlikes$29.99
  • 25 superlikes$44.99
  • 60 Superlikes$44.99
1 purchases

Stack B

Subscriptions1
  • Plus$1.491 Month

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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