Trraxx vs Momentous Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trraxx
Receive real-time alerts for blocked train crossings. This community-driven app relies on user updates to inform others about train traffic. Favorite specific crossings to stay informed about your regular routes.
- Train crossing notifications
- User-reported status updates
- Favorite crossing management
- Push notification alerts
- Community-driven data
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Trraxx pre-notifies you when an intersection is blocked off by a stopped or busy train. The app entirely depends on users to update the status of a crossing if it hasn't already been updated. Users can favorite crossings to receive status updates for those specific areas This app is only functional after you give your consent to allow Push Notifications upon launching the app the first time. Owner : Scott Scherring Developer : Fadel Sobh
Momentous Clock
This app transforms your device's clock into a dynamic display of mathematical properties and number theory facts for the current time. It optionally reveals personal number connections from your contacts, all processed securely on your device.
- Computes mathematical properties of time
- Surfaces number theory facts
- Displays time on 16-segment LED screens
- Finds personal number connections in contacts
- On-device contact matching
- Works via Catalyst on Mac
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Time isn’t just 6:31. It’s 631 - a prime! A lucky prime... It’s the combination to the bike lock you had as a kid. It might be the last digits of the cell phone of someone you love. This is a clock for people who notice things like that. Every minute, it: • Computes mathematical properties of the current time • Surfaces number theory facts (prime, factorization, powers, sequences, curiosities) • Scrambles them onto glowing 16-segment LED displays, like your old Speak 'n Spell • Optionally finds personal number connections in your contacts — entirely on device Works great as a Mac app via Catalyst. Contact matching happens entirely on device. No personal data is ever transmitted. Usage analytics (anonymous) are collected to improve the app. If you’ve ever factored timestamps in your head, smiled at 5:12 = 2⁹, or paused at 17:29… This is the clock for you. Make every minute momentous.
Screenshots
Verdict
The clearest difference is update cadence: Momentous Clock at every 6 days against Trraxx's every 27 months. Trraxx's advantage is iOS requirement (12.0 vs 15.1). On price, rating, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Trraxx against 5.0 for Momentous Clock. Both are backed by a comparable volume of ratings — 4 and 2 respectively.
Trraxx ships an update every 27 months, Momentous Clock every 6 days. Both last shipped on November 3, 2026.
| Parameter | Trraxx | Momentous Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (2 ratings) |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 27 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 20 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | HALL OF FAME | Tutukain Software, LLC |
Customer experience
Trraxx
Momentous Clock
In-app purchases
Trraxx
No in-app purchases
Momentous Clock
No in-app purchases
Questions
Is Trraxx free?
Is Momentous Clock free?
Which has better reviews, Trraxx or Momentous Clock?
Do Trraxx or Momentous Clock have ads?
Which is updated more often, Trraxx or Momentous Clock?
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