Comparison

Seagull IM vs 二人世界

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

Head to head
About

Seagull IM

This secure messaging app offers end-to-end encrypted chats, voice, and video calls. It prioritizes user privacy with features like screenshot notifications and bidirectional deletion, making communication efficient and private.

Highlights
  • End-to-end encryption
  • Screenshot notifications
  • Bidirectional message deletion
  • Large group chat support
  • Voice and video calls
  • Application lock
Features
Read full description

Seagull app is an efficient, convenient, secure and reliable encrypted instant messaging social software. By relying on end-to-end encryption algorithms to protect users' chat privacy, they can send and receive messages at any time and chat with friends via voice or video. Provide users with a secure, private, efficient, and convenient communication platform. Introduction to Seagull Featured Features [Information Encryption] Adopting end-to-end encryption technology to ensure that chat information is not leaked; [Privacy and Security] Mismatch user address book information to protect user address book privacy; Real time voice communication among multiple people makes team collaboration more convenient; [Application encryption] Application lock, chat application information to prevent peeping; [Screenshot Reminder] Friends or group chats. If someone takes a screenshot, the system will notify everyone that it has been taken; [Bi directional deletion] Information transmission error, can actively delete the erroneous information; Powerful Group Control: A large group of ten thousand people, with rich features such as member protection and mute for group members; 【 Convenient Communication 】 Long voice and video calls allow you to have endless conversations; Efficient socialization: Users can chat efficiently anytime and anywhere, with barrier free communication; Batch forwarding: Select multiple chat messages for efficient resolution of batch forwarding issues; 【 Dynamic Sharing 】 Share every exciting moment and record the details of your life.

About

二人世界

This app creates a virtual shared space for couples, especially those in long-distance relationships. It offers features like listening to music together, virtual camping, shared study sessions, and location sharing to foster connection and intimacy.

Highlights
  • Real-time location and status sharing
  • Synchronized music listening
  • Virtual online camping
  • Shared virtual study room
  • Anniversary and birthday reminders
  • Period tracking and synchronization
  • Shared task checklists
Features
Read full description

二人世界是为异地恋打造的专属线上世界,为情侣推出各种恋爱小工具,为每一段亲密关系关系保驾护航!在这里,你不用再受距离的桎梏,你们可以自由地一起听歌、一起上自习、一起露营说晚安,还可以随时查看对方当前的位置和状态,实时守护对方~ -------------------------------------------- ◈ 主要功能 ◈ -------------------------------------------- 1)看看他/她在哪儿 实时查看对方当前所在的位置和状态,实时守护更安心! 2)一起听歌 一键连接一起听同一首歌,不在身边也可以“耳机分你一半” 3)一起露营 虚拟线上露营场景,让每日哄睡更有氛围感! 4)一起自习 进入线上虚拟自习室,好的感情是让我们彼此都变得更好! 5)更多恋爱小工具 生日、纪念日实时提醒,不错过任何一个专属时刻;大姨妈信息实时同步,让他随时掌握经期、安全期,贴心照顾特殊时期的你;一起完成的100件小事打卡,一起记录那些“一起”的事…… -------------------------------------------- ◈ 其他 ◈ -------------------------------------------- -隐私权政策:https://m.daodaojizhang.com/article/webshow/353 -会员服务协议:https://m.daodaojizhang.com/article/webshow/360 -------------------------------------------- ◈ 给我们写信 ◈ -------------------------------------------- 有任何疑问或者建议,欢迎给我们写信:couple@ziguhonglan.com

Screenshots

Seagull IM4 screens
二人世界4 screens

Verdict

The call

The clearest difference is rating: 二人世界 at 5.0 against Seagull IM's 3.6. 二人世界 also leads on iOS requirement (13.0 vs 15.0). Seagull IM's advantage is ratings volume (47 vs 1) and update cadence (every 3 weeks vs every 6 weeks). On price, ads, 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. Seagull IM sells 10 one-off in-app purchases and 二人世界 sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

二人世界 holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Seagull IM has 47 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Seagull IM ships an update every 3 weeks, 二人世界 every 6 weeks. The most recent releases landed on November 14, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
Seagull IM versus 二人世界: the parameters behind the verdict, then further details
ParameterSeagull IM二人世界
PriceFreeFree
Rating3.6 (47 ratings)5.0 (1 ratings) — better
Positive reviews87.2% of reviews—
Number of ratings47 — better1
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size234 MB213 MB
Age rating17+4+
DeveloperChengdu zhengdu Technology Co., LtdSHANGHAI ZIGUHONGLAN AI TECHNOTOGY CO.,LTD

Customer experience

Seagull IM

All ratings46 ratings
Positive63.0%
Neutral2.2%
Negative34.8%
Written reviews86 reviews
Positive87.2%
Neutral0.0%
Negative12.8%

二人世界

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Seagull IM

One-time10
  • 海鸥1个月靓号服务券$2.99
  • 海鸥3个月靓号服务券$7.99
  • 海鸥会员-1个月$9.99
Show 7 more
  • 海鸥6个月靓号服务券$14.99
  • 海鸥12个月靓号服务券$29.99
  • 海鸥会员-3个月$29.99
  • 欧币$59.99
  • 海鸥$69.99
  • 海鸥会员-12个月$99.99
  • 1298元欧币$199.99
9 purchases

二人世界

One-time9
  • 双人季卡$14.99
  • 赠送永久会员$14.99
  • 永久会员98元$14.99
Show 6 more
  • 永久会员2 variants$14.99
  • 赠送会员$14.99
  • 赠送年卡会员$14.99
  • 限时永久会员$14.99
  • 双人永久$19.99
  • 双人永久$24.99

Questions

Is Seagull IM free?
Seagull IM is free to download, with in-app purchases available.
Is 二人世界 free?
二人世界 is free to download, with in-app purchases available.
Which has better reviews, Seagull IM or 二人世界?
二人世界 is rated higher. Seagull IM averages 3.6 out of 5 from 47 ratings, while 二人世界 averages 5.0 from 1 ratings.
Do Seagull IM or 二人世界 have ads?
Both Seagull IM and 二人世界 show ads.
Which is updated more often, Seagull IM or 二人世界?
Seagull IM ships an update every 3 weeks, and 二人世界 every 6 weeks. Most recently, Seagull IM was updated on November 14, 2026 and 二人世界 on November 7, 2026.

Other comparisons