# Duluu vs Piiing

The clearest difference is in-app purchases: Duluu at none against Piiing's 4. Piiing's advantage is update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Piiing sells 4 one-off in-app purchases. Duluu asks for nothing beyond the download.

Duluu 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 | Duluu | 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 80 MB | 95 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Wei-Jr Lai](https://appshunter.io/developer/1676422232) | [YUSHUAN KAO](https://appshunter.io/developer/1712139473) |

## What reviewers say

### Duluu

[App page](https://appshunter.io/ios/app/duluu/id6463662378)

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

**In-app purchases:** none


### Piiing

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

A low-pressure social app focused on simple notifications to connect with friends, family, and communities. Send quick reminders, share photos, or announce arrivals without the need for ongoing conversations. Create or join 'Planets' to notify groups simultaneously.

**Highlights:** Send quick notifications, Free text notifications, Attach photos to notifications, Create and join 'Planets', Group notifications, Unique notification sounds, Bell Circles for frequent contacts

**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 Duluu free?

Duluu is free to download, with no in-app purchases.

### Is Piiing free?

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

### Do Duluu or Piiing have ads?

Neither Duluu nor Piiing shows ads.

### Which is updated more often, Duluu or Piiing?

Duluu ships an update every 2 weeks, and Piiing every 3 days. Most recently, Duluu 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.*