# Upside Down Text vs Vibration Meter, seismograph

The clearest difference is review sentiment: Upside Down Text at 100% against Vibration Meter, seismograph's 42%. Upside Down Text also leads on monetization model (free vs free with in-app purchases). Vibration Meter, seismograph's advantage is rating (4.7 vs 4.0) and ads (none vs shown). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Upside Down Text sells 1 one-off in-app purchase and Vibration Meter, seismograph sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Vibration Meter, seismograph holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Vibration Meter, seismograph has 733 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Upside Down Text's written reviews are positive against 42% of Vibration Meter, seismograph's, so the app with the better star average is not the one people write more warmly about.

Upside Down Text ships an update every 77 months, Vibration Meter, seismograph every 7 months. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Upside Down Text | Vibration Meter, seismograph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/upside-down-text-flip-and-copy/id793715690/reviews) | **[4.7 (733 ratings)](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201/reviews)** |
| Number of ratings | 4 | **733** |
| Positive reviews | **100.0% of reviews** | 42.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 77 months | **Every 7 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 18 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [vuong cuong](https://appshunter.io/developer/639531018) | [ExaMobile S.A.](https://appshunter.io/developer/506014841) |

## What reviewers say

### Upside Down Text

[App page](https://appshunter.io/ios/app/upside-down-text-flip-and-copy/id793715690)

Easily generate text with an upside-down effect for sharing on social media, messages, or emails. Transform your regular text into a unique, flipped format to stand out in your communications.

**Highlights:** Create upside-down text effects, Share to social networks, Share via email, Share via messages, Text transformation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Vibration Meter, seismograph

[App page](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201)

This application uses your phone's accelerometer to measure and record vibrations from various sources, including earthquakes and everyday objects. It displays ground motion on a graph and uses an instrumental intensity scale for analysis. You can also monitor and share your measurement results.

**Highlights:** Measures vibration strength, Detects seismic waves, Uses accelerometer for analysis, Displays ground motion graph, Utilizes instrumental intensity scale, Monitors and shares results

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Upside Down Text free?

Upside Down Text is free to download, with in-app purchases available.

### Is Vibration Meter, seismograph free?

Vibration Meter, seismograph is free to download, with in-app purchases available.

### Which has better reviews, Upside Down Text or Vibration Meter, seismograph?

Vibration Meter, seismograph is rated higher. Upside Down Text averages 4.0 out of 5 from 4 ratings, while Vibration Meter, seismograph averages 4.7 from 733 ratings.

### Do Upside Down Text or Vibration Meter, seismograph have ads?

Upside Down Text shows ads; Vibration Meter, seismograph does not.

### Which is updated more often, Upside Down Text or Vibration Meter, seismograph?

Upside Down Text ships an update every 77 months, and Vibration Meter, seismograph every 7 months. Most recently, Upside Down Text was updated on November 1, 2026 and Vibration Meter, seismograph on November 11, 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.*