Comparison

LCM GCD Prime Factor Math vs Memory Walk

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

LCM GCD Prime Factor Math

Features
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This application is a mathematical tool that helps to find the LCM (least common multiple) and the GCD (greatest common divisor) of up to 4 numbers. Factorization : integers of up to 7 digits are allowed as input. You can decomposing numbers up to 9999999 into prime factors and find out if a number is prime or not.

About

Memory Walk

Features
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Transform any walk into a powerful memory training session. Memory Walk combines physical movement with proven memory techniques to help you memorize speeches, numbers, scripts, or study material faster and more effectively. By linking content to locations on your walking route, you tap into your brain's natural ability to remember places and spatial information. Perfect for: โ€ข Students: Master exam material, lectures, or language vocabulary โ€ข Professionals: Memorize presentations, sales pitches, or meeting notes โ€ข Actors: Learn scripts and lines without the stress โ€ข Public speakers: Internalize speeches and talking points โ€ข Memory enthusiasts: Train with Pi digits or number sequences โ€ข Anyone learning: Recipes, procedures, step-by-step instructions How it works: 1. Record or draw your walking route 2. Split your content into segments (adjustable 10-100m spacing) 3. Walk the route - segments appear automatically at each location 4. Use text-to-speech, hide/reveal features, and track progress 5. Repeat and improve your accuracy over time Based on the Method of Loci (Memory Palace) technique** - used by memory champions and proven effective for centuries. Research shows that combining movement, location, and repetition dramatically improves retention. Track your progress with detailed statistics, customize segment spacing, and train anywhere - in your neighborhood, at the park, or even indoors.

Screenshots

LCM GCD Prime Factor Math4 screens
Memory Walk4 screens

Verdict

The call

The clearest difference is price: Memory Walk at Free against LCM GCD Prime Factor Math's $0.99. Memory Walk also leads on update cadence (weekly vs every 18 months). LCM GCD Prime Factor Math's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 18.6). On ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Memory Walk is free to download; LCM GCD Prime Factor Math costs $0.99 up front. Memory Walk sells 1 one-off in-app purchase. LCM GCD Prime Factor Math asks for nothing beyond the download.

UpkeepUpdate frequency

LCM GCD Prime Factor Math ships an update every 18 months, Memory Walk weekly. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

Scorecard4 real differences ยท 2 level
LCM GCD Prime Factor Math versus Memory Walk: the parameters behind the verdict, then further details
ParameterLCM GCD Prime Factor MathMemory Walk
Price$0.99Free โ€” better
Update frequencyEvery 18 monthsWeekly โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS11.0 โ€” better18.6
Further details โ€” not scored
Size5 MB3 MB
Age rating4+4+
DeveloperMaria Dolores Garcia FerreBo Kalvslund

In-app purchases

None

LCM GCD Prime Factor Math

No in-app purchases

1 purchases

Memory Walk

One-time1
  • Unlimited routes$0.99

Questions

Is LCM GCD Prime Factor Math free?
LCM GCD Prime Factor Math costs $0.99, with no in-app purchases.
Is Memory Walk free?
Memory Walk is free to download, with in-app purchases available.
Do LCM GCD Prime Factor Math or Memory Walk have ads?
Neither LCM GCD Prime Factor Math nor Memory Walk shows ads.
Which is updated more often, LCM GCD Prime Factor Math or Memory Walk?
LCM GCD Prime Factor Math ships an update every 18 months, and Memory Walk weekly. Most recently, LCM GCD Prime Factor Math was updated on September 19, 2026 and Memory Walk on September 12, 2026.

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