# UD Mobile vs FlySto

The clearest difference is rating: FlySto at 4.9 against UD Mobile's 4.1. FlySto also leads on review sentiment (83% vs 50%). UD Mobile's advantage is device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FlySto holds the better App Store score, 4.9 against 4.1. Both are backed by a comparable volume of ratings — 37 and 29 respectively. Written reviews point the same way: 50% of UD Mobile's written reviews are positive against 83% of FlySto's.

UD Mobile ships an update weekly, FlySto every 10 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | UD Mobile | FlySto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (37 ratings)](https://appshunter.io/ios/app/ud-mobile/id1550618148/reviews) | **[4.9 (29 ratings)](https://appshunter.io/ios/app/flysto/id6447300616/reviews)** |
| Number of ratings | **37** | 29 |
| Positive reviews | 50.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free | Free |
| Size | 105 MB | 111 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Universal Devices, Inc.](https://appshunter.io/developer/1550618150) | [FlySto Limited](https://appshunter.io/developer/1815916959) |

## What reviewers say

### UD Mobile

[App page](https://appshunter.io/ios/app/ud-mobile/id1550618148)

Control your Universal Devices home automation controllers, including eisy, Polisy, and ISY994i. Manage Insteon, Z-Wave, Zigbee devices, programs, and network resources locally or remotely. Integrates with ISY Portal for seamless remote access.

**Highlights:** Control Universal Devices controllers, Manage Insteon, Z-Wave, Zigbee devices, Control programs and variables, Local and remote connection options, ISY Portal integration

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

**In-app purchases:** none


### FlySto

[App page](https://appshunter.io/ios/app/flysto/id6447300616)

Track all your flight data conveniently on your mobile device. Organize flights by month, filter by aircraft or airport, and upload logs easily. Get detailed analysis of your flights with over 30 calculated parameters and graphs.

**Highlights:** Organized monthly flight list, Filter by aircraft or airport, Easy log upload via SD card, Offline log storage and upload, Detailed flight analysis with graphs, Review landing limits and scoring

**In-app purchases:** none


## Frequently asked questions

### Is UD Mobile free?

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

### Is FlySto free?

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

### Which has better reviews, UD Mobile or FlySto?

FlySto is rated higher. UD Mobile averages 4.1 out of 5 from 37 ratings, while FlySto averages 4.9 from 29 ratings.

### Do UD Mobile or FlySto have ads?

Neither UD Mobile nor FlySto shows ads.

### Which is updated more often, UD Mobile or FlySto?

UD Mobile ships an update weekly, and FlySto every 10 days. Most recently, UD Mobile was updated on October 25, 2026 and FlySto on October 25, 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.*