# Bubble Level + Compass Pro vs PicoStar

The clearest difference is price: PicoStar at Free against Bubble Level + Compass Pro's $0.99. PicoStar also leads on update cadence (every 7 months vs every 17 months). Bubble Level + Compass Pro's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On ads there is nothing between them.

PicoStar is free to download; Bubble Level + Compass Pro costs $0.99 up front. PicoStar sells 1 one-off in-app purchase. Bubble Level + Compass Pro asks for nothing beyond the download.

Bubble Level + Compass Pro ships an update every 17 months, PicoStar every 7 months. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Bubble Level + Compass Pro | PicoStar |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (22 ratings)](https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 7 months** |
| Monetization | Paid | — |
| Size | 7 MB | 16 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) | [Ryan Rudes](https://appshunter.io/developer/1698870132) |

## What reviewers say

### Bubble Level + Compass Pro

[App page](https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222)

This utility app provides a precise spirit level and compass for your iPhone and Apple Watch. Get live readings on your wrist, even when your phone's screen is out of sight. Features include bullseye, horizontal, and vertical levels with 0.1-degree precision.

**Highlights:** Bullseye, horizontal, and vertical levels, 0.1-degree precision, True and magnetic heading, Apple Watch companion app, Gyro or accelerometer sensor mode, Red-light night mode

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### PicoStar

[App page](https://appshunter.io/ios/app/picostar/id6444901007)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Planetary Expansion Pack | $9.99 | one-time |


## Frequently asked questions

### Is Bubble Level + Compass Pro free?

Bubble Level + Compass Pro costs $0.99, with no in-app purchases.

### Is PicoStar free?

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

### Do Bubble Level + Compass Pro or PicoStar have ads?

Neither Bubble Level + Compass Pro nor PicoStar shows ads.

### Which is updated more often, Bubble Level + Compass Pro or PicoStar?

Bubble Level + Compass Pro ships an update every 17 months, and PicoStar every 7 months. Most recently, Bubble Level + Compass Pro was updated on October 10, 2026 and PicoStar on October 2, 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.*