Momentous Clock vs GridSmith
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
GridSmith
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FREE APP NO ADS NO PAYWALL Use all the features provided to you to make unique and personal designs that will make your puzzles shine. Keep an eye on the statistics data, always available at a glance. Keep all your creations at the same place, on all your devices. You can't ever loose them even if you uninstall the app or upgrade your hardware, thanks to iCloud synchronization. Stay tuned for more features because word filling and sharing will come soon! Help us improve the app by commenting down below what's the feature you want to see next.
Screenshots
Verdict
Momentous Clock and GridSmith are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Momentous Clock | GridSmith |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 24 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Tutukain Software, LLC | Gingko Lab |
In-app purchases
Momentous Clock
No in-app purchases
GridSmith
No in-app purchases
Questions
Is Momentous Clock free?
Is GridSmith free?
Do Momentous Clock or GridSmith have ads?
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