# Otter Curiosity vs Piiing

The clearest difference is update cadence: Piiing at every 3 days against Otter Curiosity's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Otter Curiosity sells 2 in-app purchases, starting at $7.99 per month and Piiing sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Otter Curiosity ships an update every 2 weeks, Piiing every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Otter Curiosity | Piiing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/piiing/id6763696379/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 72 MB | 95 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Chang-Shen Wu](https://appshunter.io/developer/1687362208) | [YUSHUAN KAO](https://appshunter.io/developer/1712139473) |

## What reviewers say

### Otter Curiosity

[App page](https://appshunter.io/ios/app/otter-curiosity/id6449002669)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Otter Member | $7.99 | per month |
| 好奇海獺貝殼 | $5.99 | one-time |


### Piiing

[App page](https://appshunter.io/ios/app/piiing/id6763696379)

This app offers a low-pressure way to stay connected with small, playful notifications. Send quick pings with custom sounds and messages to friends, organize groups, or create shared spaces for simple broadcasts. It's designed for light interactions between conversations, not for full chat.

**Highlights:** Send quick Piiings, Customizable notification sounds, Create Bell Circles for groups, Create shared Planets for broadcasts, Incognito notifications, Notification history, Profile and notification management

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Piiing 30-Day Pass | $0.99 | one-time |
| Piiing Draw Tickets 10 | $0.99 | one-time |
| Piiing Draw Tickets 100 + 10 | $6.99 | one-time |
| Piiing 365-Day Pass | $9.99 | one-time |


## Frequently asked questions

### Is Otter Curiosity free?

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

### Is Piiing free?

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

### Do Otter Curiosity or Piiing have ads?

Neither Otter Curiosity nor Piiing shows ads.

### Which is updated more often, Otter Curiosity or Piiing?

Otter Curiosity ships an update every 2 weeks, and Piiing every 3 days. Most recently, Otter Curiosity was updated on October 30, 2026 and Piiing on October 31, 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.*