# FDS Remote Timer vs TM550

The clearest difference is update cadence: TM550 at every 2 months against FDS Remote Timer's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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

FDS Remote Timer ships an update every 4 months, TM550 every 2 months. The most recent releases landed on June 20, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | FDS Remote Timer | TM550 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 39 MB | 42 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FDS-TIMING Sarl](https://appshunter.io/developer/1208225025) | [ITS-CHRONO](https://appshunter.io/developer/1278336293) |

## What reviewers say

### FDS Remote Timer

[App page](https://appshunter.io/ios/app/fds-remote-timer/id1483148951)

**Features:** macOS Compatibility

**In-app purchases:** none


### TM550

[App page](https://appshunter.io/ios/app/tm550/id1659378867)

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

**In-app purchases:** none


## Frequently asked questions

### Is FDS Remote Timer free?

FDS Remote Timer is free to download, with no in-app purchases.

### Is TM550 free?

TM550 is free to download, with no in-app purchases.

### Do FDS Remote Timer or TM550 have ads?

Neither FDS Remote Timer nor TM550 shows ads.

### Which is updated more often, FDS Remote Timer or TM550?

FDS Remote Timer ships an update every 4 months, and TM550 every 2 months. Most recently, FDS Remote Timer was updated on June 20, 2026 and TM550 on September 7, 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.*