# PiPO vs LumberFit

The clearest difference is price: LumberFit at Free against PiPO's $2.99. LumberFit also leads on update cadence (every 2 weeks vs every 14 months). PiPO's advantage is in-app purchases (none vs 1) and iOS requirement (7.1 vs 17.0). On ads and device support there is nothing between them.

LumberFit is free to download; PiPO costs $2.99 up front. LumberFit sells 1 in-app purchase, starting at $1.99 per month. PiPO asks for nothing beyond the download.

PiPO ships an update every 14 months, LumberFit every 2 weeks. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PiPO | LumberFit |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pipo/id983719927/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 39 MB | 6 MB |
| Requires iOS | **7.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kaji Takatsugu](https://appshunter.io/developer/465688467) | [剑炜 陈](https://appshunter.io/developer/1868267178) |

## What reviewers say

### PiPO

[App page](https://appshunter.io/ios/app/pipo/id983719927)

This app simulates Japanese ambulance sirens and emergency vehicle sounds. It features recorded siren sounds, voice recordings, and a flashing light effect. It is not a real siren amplifier but a sound playback application.

**Highlights:** Ambulance siren sounds, Emergency vehicle voice recordings, Record and playback custom audio, Flashing light effect, Automatic siren function

**Features:** macOS Compatibility

**In-app purchases:** none


### LumberFit

[App page](https://appshunter.io/ios/app/lumberfit/id6757940921)

Optimize wood cutting and plan transport for woodworking projects. Features include board cutting layouts, 3D vehicle loading visualization, and AR-based measurement. Share results and save projects.

**Highlights:** Board cutting optimization, 3D vehicle load checking, AR camera measurement, Export and share results, Save and load cutting schemes, Supports multiple units

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LumberFit 1 Month VIP | $1.99 | per month |


## Frequently asked questions

### Is PiPO free?

PiPO costs $2.99, with no in-app purchases.

### Is LumberFit free?

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

### Do PiPO or LumberFit have ads?

Neither PiPO nor LumberFit shows ads.

### Which is updated more often, PiPO or LumberFit?

PiPO ships an update every 14 months, and LumberFit every 2 weeks. Most recently, PiPO was updated on October 12, 2026 and LumberFit on October 8, 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.*