# myIseismo vs FlashFace Full

The clearest difference is price: myIseismo at Free against FlashFace Full's $3.99. myIseismo also leads on rating (3.7 vs 2.3) and review sentiment (67% vs 33%). FlashFace Full's advantage is update cadence (every 5 weeks vs every 8 months) and chart position (#58 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

myIseismo is free to download; FlashFace Full costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

myIseismo holds the better App Store score, 3.7 against 2.3. That said, the two scores are not equally well evidenced: FlashFace Full has 25 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of myIseismo's written reviews are positive against 33% of FlashFace Full's.

myIseismo ships an update every 8 months, FlashFace Full every 5 weeks. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | myIseismo | FlashFace Full |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/myiseismo/id546319047/reviews)** | [2.3 (25 ratings)](https://appshunter.io/ios/app/flashface-full/id553145544/reviews) |
| Number of ratings | 3 | **25** |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Best chart rank | — | **#58** |
| Size | 8 MB | 20 MB |
| Requires iOS | 8.0 | 8.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zippy Systems](https://appshunter.io/developer/297058024) | [Artem Brigert](https://appshunter.io/developer/1795772454) |

## What reviewers say

### myIseismo

[App page](https://appshunter.io/ios/app/myiseismo/id546319047)

Visualize device accelerometer data with detailed graphing options. Explore raw or delta modes, customize trace appearance, and save or share your findings. Useful for detecting vibrations and understanding device sensitivity.

**Highlights:** Raw and delta accelerometer data modes, Customizable trace thickness and axis visibility, Pen chart and oscilloscope graph modes, Print or email trace images, Email raw data in XML format, Trace viewer with zoom and scroll, Save traces with time and location tags

**Features:** macOS Compatibility

**In-app purchases:** none


### FlashFace Full

[App page](https://appshunter.io/ios/app/flashface-full/id553145544)

**Currently charting:** #58 Top Paid · Entertainment (US App Store)

Create realistic facial composite sketches using a vast library of customizable facial features. Ideal for law enforcement professionals, this app allows users to assemble and save detailed sketches of individuals for identification or personal use.

**Highlights:** Create facial composite sketches, Large library of facial components, Move and scale face elements, Save and load sketches, Export sketches as JPEG

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

**In-app purchases:** none


## Frequently asked questions

### Is myIseismo free?

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

### Is FlashFace Full free?

FlashFace Full costs $3.99, with no in-app purchases.

### Which has better reviews, myIseismo or FlashFace Full?

myIseismo is rated higher. myIseismo averages 3.7 out of 5 from 3 ratings, while FlashFace Full averages 2.3 from 25 ratings.

### Do myIseismo or FlashFace Full have ads?

Neither myIseismo nor FlashFace Full shows ads.

### Which is updated more often, myIseismo or FlashFace Full?

myIseismo ships an update every 8 months, and FlashFace Full every 5 weeks. Most recently, myIseismo was updated on November 6, 2026 and FlashFace Full on November 10, 2026.

---

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