Otter Curiosity vs HFI One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Otter Curiosity
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Lurking, with a head full of opinions. Here, a reply isn't a comment. It's the start of a one-to-one conversation, about what you think, not how you look. Otter Curiosity is a place to discuss topics: • Post a question or a poll, and say why you're curious • Reply to one you have a view on, and your reply opens a one-to-one chat • No followers, no trending, just conversations Safety comes first here. Judging and attacking don't belong. Report and block are always one tap away. 18+ only. Design Objective I look forward to closing the distance between people. In this polarizing world, we inevitably feel lonely and misunderstood, but we are never alone! I hope to create more space for our society to communicate so that we can all openly explore and listen to different viewpoints. "I am not surprised that you think this way, I will be just like you." "I have never thought about it this way, what could you share to help me see what you see?" I hope that when it comes to different viewpoints, we can always choose curiosity over clash, and be willing to understand and think from different angles. I hope that we can truly embrace our diversity, knowing that we can achieve more when we have our hands held together! Subscribe to unlock more features! If you subscribe, a monthly purchase with the amount displayed on the app at the time of purchase will be applied to your iTunes account (the amount may vary between countries or regions). Subscriptions will automatically renew unless canceled within 24 hours before the end of the current period. You can cancel your subscription or turn off automatic renewal at any time with your iTunes account settings. Any unused portion of a free trial will be forfeited if you purchase a subscription. By signing up, you have read and agreed with our Terms of Service and Privacy Policy: Terms of Service: https://ottercuriosity.dev/enTermsOfService Privacy Policy: https://ottercuriosity.dev/enPrivacyPolicy
HFI One
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HFI One在线社区 包含发帖,讨论,学习资料分享等功能 欢迎各位HFIer使用
Screenshots
Verdict
The clearest difference is in-app purchases: HFI One at none against Otter Curiosity's 2. HFI One also leads on update cadence (every 3 days vs every 2 weeks). Otter Curiosity's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support 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
Both are free to download. Otter Curiosity sells 2 in-app purchases, starting at $7.99 per month. HFI One asks for nothing beyond the download.
Otter Curiosity ships an update every 2 weeks, HFI One every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Otter Curiosity | HFI One |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 72 MB | 15 MB |
| Age rating | 17+ | 4+ |
| Developer | Chang-Shen Wu | 恩澄 许 |
In-app purchases
Otter Curiosity
- Premium Otter Member$7.991 Month
- 好奇海獺貝殼$5.99
HFI One
No in-app purchases









