# GX Timer vs CITYSURVEY.ai

The clearest difference is update cadence: GX Timer at every 3 weeks against CITYSURVEY.ai's every 4 months. GX Timer also leads on iOS requirement (11.0 vs 13.0). 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.

GX Timer ships an update every 3 weeks, CITYSURVEY.ai every 4 months. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | GX Timer | CITYSURVEY.ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/gx-timer/id1600052896/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 43 MB | 41 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [美琴 宋](https://appshunter.io/developer/1160294086) | [CITYDATA](https://appshunter.io/developer/1588934251) |

## What reviewers say

### GX Timer

[App page](https://appshunter.io/ios/app/gx-timer/id1600052896)

Control timing devices via Bluetooth for various training and exercise needs. Offers fast training, custom training, countdowns, stopwatches, and timed alarms. Configure functions and track exercise durations.

**Highlights:** Fast training timing, Custom training timing, Countdown timers, Stopwatch functionality, Timed alarms, Function configuration

**Features:** macOS Compatibility

**In-app purchases:** none


### CITYSURVEY.ai

[App page](https://appshunter.io/ios/app/citysurveyai/id6740578738)

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

**In-app purchases:** none


## Frequently asked questions

### Is GX Timer free?

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

### Is CITYSURVEY.ai free?

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

### Do GX Timer or CITYSURVEY.ai have ads?

Neither GX Timer nor CITYSURVEY.ai shows ads.

### Which is updated more often, GX Timer or CITYSURVEY.ai?

GX Timer ships an update every 3 weeks, and CITYSURVEY.ai every 4 months. Most recently, GX Timer was updated on October 9, 2026 and CITYSURVEY.ai on October 16, 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.*