# Vibrometer vs Ding Dong XL

The clearest difference is rating: Ding Dong XL at 5.0 against Vibrometer's 3.0. Ding Dong XL also leads on monetization model (free vs paid) and update cadence (every 2 months vs every 21 months). On price, ads and in-app purchases there is nothing between them.

Vibrometer costs $0.99 and Ding Dong XL $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ding Dong XL holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Ding Dong XL has 99 ratings behind it against 2, so its average is the more settled of the two.

Vibrometer ships an update every 21 months, Ding Dong XL every 2 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Vibrometer | Ding Dong XL |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/vibrometer/id353867884/reviews) | **[5.0 (99 ratings)](https://appshunter.io/ios/app/ding-dong-xl/id1445475518/reviews)** |
| Number of ratings | 2 | **99** |
| Positive reviews | — | 98.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Best chart rank | — | **#195** |
| Size | 6 MB | 95 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Adamvision](https://appshunter.io/developer/959464885) |

## 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


### Ding Dong XL

[App page](https://appshunter.io/ios/app/ding-dong-xl/id1445475518)

**Currently charting:** #195 Top Paid · Casual (US App Store)

Bounce between the top and bottom of the screen, dodging obstacles and collecting points in this fast-paced arcade game. Master one-touch controls for endless survival challenges, with dual and infinite modes for advanced players. Customize your experience with unlockable skins.

**Highlights:** One-touch controls for sliding, Endless progressive difficulty, Dual Mode challenge, Infinite Mode for experts, Unlockable cosmetic skins, Multi-language support

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

**In-app purchases:** none

**What reviewers like**

- 👍 Addictive gameplay
- 👍 Simple and easy to play
- 👍 Great time killer
- 👍 Good value for money
- 👍 Fun visuals and concept

**What reviewers complain about**

- 🐛 Unclear power-up functionality
- 🐛 Repetitive music
- 🐛 Leaderboard not working on older devices

**Reported bugs**

- Leaderboard not working on iPhone 6s

**Requested features**

- More characters, modes, upgrades
- Apple TV support
- More power-up explanations


## Frequently asked questions

### Is Vibrometer free?

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

### Is Ding Dong XL free?

Ding Dong XL costs $0.99, with no in-app purchases.

### Which has better reviews, Vibrometer or Ding Dong XL?

Ding Dong XL is rated higher. Vibrometer averages 3.0 out of 5 from 2 ratings, while Ding Dong XL averages 5.0 from 99 ratings.

### Do Vibrometer or Ding Dong XL have ads?

Neither Vibrometer nor Ding Dong XL shows ads.

### Which is updated more often, Vibrometer or Ding Dong XL?

Vibrometer ships an update every 21 months, and Ding Dong XL every 2 months. Most recently, Vibrometer was updated on October 29, 2026 and Ding Dong XL on October 26, 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.*