Least Common Multiple (LCM) vs When
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Least Common Multiple (LCM)
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The IOS Least Common Multiple (LCM) App was created in response to requests by visitors to the popular https://multiples.info website. This app will not only find the LCM of your numbers, but it will also calculate the multiplier you need to multiply each number by to get the LCM. The app is fast, intuitive, and easy to use. It is a standalone app, which means that it will work perfectly fine in places with little or no Internet access. We hope the Least Common Multiple App will become one of your favorite math apps.
When
Never forget important dates again with this simple event tracking tool. Easily add and customize upcoming events like birthdays and anniversaries to see them all at a glance. Stay organized and ensure you never miss a moment that matters.
- Track birthdays and anniversaries
- Countdown to concerts and vacations
- Simple event adding
- Customizable with emojis
- Clear event overview
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Always forget to send that birthday card on time? Me too. With When, you'll never forget an important date again. Keep track of all the moments that matter to you, from birthdays and anniversaries to concerts, vacations, and everything in between. Designed with simplicity in mind, When makes it easy to see all your upcoming events at a glance. Quickly add new events, customize with a lil emoji, and voila! You'll never miss a thing.
Screenshots
Verdict
The clearest difference is price: When at Free against Least Common Multiple (LCM)'s $0.99. When also leads on update cadence (every 4 days vs every 38 months). Least Common Multiple (LCM)'s advantage is iOS requirement (14.1 vs 16.0). On ads, in-app purchases and device support 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
When is free to download; Least Common Multiple (LCM) costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Least Common Multiple (LCM) ships an update every 38 months, When every 4 days. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.
| Parameter | Least Common Multiple (LCM) | When |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 38 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 0 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | H Valeur | Clark Dinnison |
In-app purchases
Least Common Multiple (LCM)
No in-app purchases
When
No in-app purchases
Questions
Is Least Common Multiple (LCM) free?
Is When free?
Do Least Common Multiple (LCM) or When have ads?
Which is updated more often, Least Common Multiple (LCM) or When?
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