Go Time vs Prep Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Go Time
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.
- 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
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Leave right on time — every time. GoTime! is your smart travel assistant that makes sure you always head out at the perfect moment. It combines real-time traffic from Apple Maps, your personal buffer time, and a live countdown to keep you effortlessly on schedule — whether you’re heading to work, catching a flight, or meeting friends. Plan Smarter • Add your start, destination, and event time. • GoTime! calculates live travel durations using Apple Maps data. • Include buffers for parking, coffee, or getting ready. Real-Time “Leave By” Countdown • See exactly when to leave — updated every second. • Clear statuses show when it’s time to get ready or go. • Live Activities on the Lock Screen and Dynamic Island keep you updated without unlocking your phone. Share Your Trip • Generate a beautifully formatted trip summary or shareable “trip card.” • Send it instantly via Messages, AirDrop, or your favorite apps. Make It Yours • Choose between a clean, animated Classic gradient or your own Photo background. • Personalize GoTime! to match your style, mood, or destination. Private by Design • No accounts, no tracking, no ads — your trips stay private and local.
Prep Clock
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Leave on time without guessing. Prep Clock starts with your arrival time, works backward through travel and preparation, and tells you exactly when to begin. PLAN THE WHOLE DEPARTURE - Build reusable routines from real prep steps. - Add destination, travel mode, buffer, and arrival time. - See start-prep, leave, and arrive times together. - Run tasks step by step with per-task timing. - Recalculate when traffic or the plan changes. - Use Running Late mode to see an honest updated arrival estimate. LEARN YOUR REAL TIMING - Record how long tasks actually take. - Compare planned and observed duration ranges. - Apply adaptive estimates to future plans. - Generate upcoming events from recurring prep plans. FREE - Up to three upcoming events and three custom routines. - Core backward planning and commute calculation. PREP CLOCK PRO - Unlimited events and routines. - Recurring plans and adaptive timing. - Calendar import and sync. - Running Late mode and additional travel modes. - Home Screen widgets and Lock Screen Live Activities. Calendar, location, and notification permissions are requested only when the related feature needs them. Schedule, task, and location details are not sent to an AI service. Subscriptions renew automatically unless canceled in your Apple ID settings. Restore an existing purchase from Settings > Restore Purchases. TERMS OF USE Product Terms of Use: https://www.uncommonweather.com/legal/apps/prepclock-terms.html Apple Standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Go Time | Prep Clock |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #188 — better | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Barnhart | Ryan Tinklepaugh |
In-app purchases
Go Time
No in-app purchases
Prep Clock
- Pro Monthly$2.991 Month
- Pro Annual$19.991 Year









