# Duos - Lock In Together — Multiplayer Habit Challenge

> Gamified co-op habit challenges with friends for self-improvement. (iPhone/iPad app by Airix LLC.)

- Source: https://appshunter.io/ios/app/duos-lock-in-together/id6758896851 (this page in markdown: same URL + `.md`)
- Developer: [Airix LLC](https://appshunter.io/developer/1831334864)
- Category: Health & Fitness, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 9+
- Requires: iOS 15.1 · 69 MB
- Languages: American English
- Released: 2026-04-11
- Data updated: 2026-08-17
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/duos-lock-in-together/id6758896851/reviews.md

## What is Duos?

Self-Improvement was never meant to be a solo game. That’s why we made Duos, an app that gamifies your habits and goals with XP, streaks, quests, and ranks. And it’s all done with the secret ingredient to improvement: accountability from a friend on the same journey.
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FEATURES
• Co-Op Challenges: Partner up with a friend and take on a 65-day habit challenge together.
• Accountability Features: Share habits, track group streaks, and hold each other to the standard every single day. When one of you slips, the other one feels it. No hiding, no excuses.
• Quests: You and your partner unlock quests as you progress through the challenge.
• XP & Ranks: Every action counts. Earn XP by completing quests and habits. Level up, climb the ranks, and watch your progress compound over time.
• Ratings: Track your growth where it matters. Increase your OVR rating by building up key life areas like Discipline, Focus, Strength, and more. A real snapshot of who you're becoming.
• Leaderboard: Your duo can compete against other duos worldwide. See how you stack up, stay motivated, and prove that your duo puts in more work than the rest.
• Hardcore Mode: Not here to coast? Hardcore Mode raises the stakes. Miss a day and your partner has to revive you or the challenge ends. For people who are serious about change.
• Achievements: Unlock milestones across your solo and duo journey. Completed quests, chapters, streaks, and more.

*ALL FEATURES ABOVE REQUIRE A SUBSCRIPTION
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HOW IT WORKS
Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions in your Account Settings after purchase.
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Terms of Use: https://www.tryduos.app/terms

## Key features

- Co-op habit challenges
- Accountability features
- XP and ranks
- Quests and achievements
- Leaderboard competition
- Hardcore mode

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Duos Premium (1 Year) | $39.99 | per year |
| Duos Premium (1 Year) | $29.99 | per year |
| Duos Premium (1 Month) | $17.99 | per month |



## Frequently asked questions about Duos

### What is Duos?

Duos is a self-improvement app that gamifies habits and goals through co-op challenges with a friend. It uses XP, streaks, quests, and ranks to motivate users.

### How does Duos work with a partner?

You and a friend can partner up for 65-day habit challenges. You share habits, track group streaks, and hold each other accountable. When one person misses a day, the other feels the impact.

### What are the subscription options for Duos?

Duos offers several subscription plans: Duos Premium (1 Month) for $17.99, Duos Premium (1 Year) for $29.99, and another Duos Premium (1 Year) option for $39.99. Payment is charged to your Apple ID and subscriptions auto-renew unless canceled.

### Can I cancel my Duos subscription?

Yes, you can manage and cancel your Duos subscriptions in your Account Settings after purchase. It's important to cancel at least 24 hours before the end of the current period to avoid renewal.

### Is Duos suitable for all ages?

Duos has an age rating of 9+, making it suitable for younger users as well as adults. The app focuses on positive habit building and goal achievement.

### What is Hardcore Mode in Duos?

Hardcore Mode in Duos raises the stakes for habit challenges. If you miss a day, your partner must revive you, or the challenge ends. This mode is designed for users who are serious about making significant changes.

### Does Duos offer a free trial?

The provided data indicates that all features require a subscription, and payment is charged upon purchase confirmation. There is no explicit mention of a free trial period.

### What devices does Duos support?

Duos is supported on iPhone and iPod devices. The app is designed for iOS users looking to enhance their self-improvement journey.

## Version history (last 1 release)

### 1.0.0 — 2026-04-11

No release notes.

## More apps by Airix LLC

- [Victor - Life Reset & AI Coach](https://appshunter.io/ios/app/victor-life-reset-and-ai-coach/id6749590424)
- [Push Up Arena - Fitness Game](https://appshunter.io/ios/app/push-up-arena-fitness-game/id6762318743)

All apps by Airix LLC: https://appshunter.io/developer/1831334864

## Related topics

[lock in together](https://appshunter.io/ios/topics/lock-in-together)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*