# Go Time vs Prep Clock

The clearest difference is price: Prep Clock at Free against Go Time's $1.99. Prep Clock also leads on update cadence (every 4 days vs every 9 days). Go Time's advantage is in-app purchases (none vs 2) and chart position (#188 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Prep Clock is free to download; Go Time costs $1.99 up front. Prep Clock sells 2 in-app purchases, starting at $2.99 per month. Go Time asks for nothing beyond the download.

Go Time ships an update every 9 days, Prep Clock every 4 days. The most recent releases landed on September 3, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Go Time | Prep Clock |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/go-time-always-on-time/id6753727325/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | Paid | — |
| Best chart rank | **#188** | — |
| Size | 14 MB | 16 MB |
| Requires iOS | 18.2 | **18.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Chris Barnhart](https://appshunter.io/developer/1844685558) | [Ryan Tinklepaugh](https://appshunter.io/developer/1883444651) |

## What reviewers say

### Go Time

[App page](https://appshunter.io/ios/app/go-time-always-on-time/id6753727325)

**Currently charting:** #188 Top Paid · Productivity (US App Store)

This smart travel planner ensures you always leave at the perfect moment. It uses real-time traffic data, personal buffer times, and a live countdown to keep you on schedule for any trip. Share your travel plans easily and customize the app's appearance.

**Highlights:** Real-time traffic integration, Personalized buffer time settings, Live 'leave by' countdown, Lock Screen and Dynamic Island Live Activities, Shareable trip summaries, Customizable backgrounds and themes, Private and local trip data

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

**In-app purchases:** none


### Prep Clock

[App page](https://appshunter.io/ios/app/prep-clock-backward-timer/id6760279596)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $19.99 | per year |


## Frequently asked questions

### Is Go Time free?

Go Time costs $1.99, with no in-app purchases.

### Is Prep Clock free?

Prep Clock is free to download, with in-app purchases available.

### Do Go Time or Prep Clock have ads?

Neither Go Time nor Prep Clock shows ads.

### Which is updated more often, Go Time or Prep Clock?

Go Time ships an update every 9 days, and Prep Clock every 4 days. Most recently, Go Time was updated on September 3, 2026 and Prep Clock on September 9, 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.*