# Vibrometer vs Blue Saucer

The clearest difference is price: Blue Saucer at Free against Vibrometer's $0.99. Blue Saucer also leads on rating (4.9 vs 3.0) and update cadence (fortnightly vs every 21 months). On ads, in-app purchases and monetization model there is nothing between them.

Blue Saucer is free to download; Vibrometer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Blue Saucer holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Blue Saucer has 10 ratings behind it against 2, so its average is the more settled of the two.

Vibrometer ships an update every 21 months, Blue Saucer fortnightly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Vibrometer | Blue Saucer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/vibrometer/id353867884/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/blue-saucer/id6444635264/reviews)** |
| Number of ratings | 2 | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 6 MB | 17 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 12+ | 12+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Thomas McLaughlin](https://appshunter.io/developer/1655789251) |

## What reviewers say

### Vibrometer

[App page](https://appshunter.io/ios/app/vibrometer/id353867884)

This game challenges players to remain as motionless as possible to win. It also functions as a tool to measure and record real-time vibrations, calculating energy consumed and acceleration data.

**Highlights:** Real-time vibration measurement, Energy consumption counter, Vibration recording, Multiplayer stillness challenges, Acceleration data charting, Save and email acceleration diagrams

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

**In-app purchases:** none


### Blue Saucer

[App page](https://appshunter.io/ios/app/blue-saucer/id6444635264)

Pilot an advanced spaceship to defend Earth from alien invaders. Equip powerful weapons, navigate cosmic challenges, and rescue stranded astronauts to become a galactic hero. Your mission is to uncover the invaders' motives and rewrite Earth's destiny.

**Highlights:** Pilot advanced spaceship, Equip powerful weapons, Navigate asteroid fields, Battle unique enemy tactics, Rescue stranded astronauts, Collect power-ups

**Features:** Game Controller support

**In-app purchases:** none


## Frequently asked questions

### Is Vibrometer free?

Vibrometer costs $0.99, with no in-app purchases.

### Is Blue Saucer free?

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

### Which has better reviews, Vibrometer or Blue Saucer?

Blue Saucer is rated higher. Vibrometer averages 3.0 out of 5 from 2 ratings, while Blue Saucer averages 4.9 from 10 ratings.

### Do Vibrometer or Blue Saucer have ads?

Neither Vibrometer nor Blue Saucer shows ads.

### Which is updated more often, Vibrometer or Blue Saucer?

Vibrometer ships an update every 21 months, and Blue Saucer fortnightly. Most recently, Vibrometer was updated on October 29, 2026 and Blue Saucer on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*