Comparison

ACM Collection vs LetterRack

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

Head to head
About

ACM Collection

Features
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A magical iOS application that makes objects disappear from images and appear in the magician's hand! Built with SwiftUI and powered by advanced image processing, ACM transforms the art of magic into a digital reality.

About

LetterRack

Features
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LetterRack. The Mentalist's Secret Weapon. Mentalism lives on one thing: focus. LetterRack gives your spectator exactly what their mind needs to lock onto a thought. Three powerful effects, one elegant tool: A spectator thinks of a random word generated by the app. The mentalist reads their mind. A spectator unscrambles an anagram and focuses on the hidden word. The mentalist reads their mind. A spectator freely chooses any word. The mentalist reads their mind. Three different paths. One impossible outcome. Full control for the performer: LetterRack gives mentalists full control over their letter sets, preparing, organizing, customizing, and cycling through words with precision, so the performer can focus entirely on the audience, not the mechanics. Instant sharing, zero friction: Generate a QR code in seconds and let your spectator scan it with their iPhone. No app download required. They land directly via App Clip, turning their own phone into part of the effect. Always within reach: A Home Screen widget keeps your current word visible at a glance, ready the moment you need it. They think it. You know it. Word lists currently available in English only. Additional languages coming in future updates. The app is free to download and try with up to 5 words. The widget and Apple Watch complication are free to install but show only the first letter of the word. Full word display, App Clip, custom word lists, and advanced word management require an Xtremagic Pass subscription or one-time purchase.

Screenshots

ACM Collection4 screens
LetterRack4 screens

Verdict

The call

The clearest difference is in-app purchases: ACM Collection at none against LetterRack's 3. ACM Collection also leads on iOS requirement (17.5 vs 26.4). On price, 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

Both are free to download. LetterRack sells 3 in-app purchases, starting at $3.99 per month. ACM Collection asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
ACM Collection versus LetterRack: the parameters behind the verdict, then further details
ParameterACM CollectionLetterRack
PriceFreeFree
Update frequencyโ€”Every 3 weeks
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, Apple Watch โ€” better
Requires iOS17.5 โ€” better26.4
Further details โ€” not scored
Size69 MB28 MB
Age rating4+4+
DeveloperFeiyu ChangVincent Launay

In-app purchases

None

ACM Collection

No in-app purchases

3 purchases

LetterRack

Subscriptions2
  • Xtremagic Pass$3.991 Month
  • Xtremagic Pass$24.991 Year
One-time1
  • Full Access (One-Time Purchase)$7.99

Questions

Is ACM Collection free?
ACM Collection is free to download, with no in-app purchases.
Is LetterRack free?
LetterRack is free to download, with in-app purchases available.
Do ACM Collection or LetterRack have ads?
Neither ACM Collection nor LetterRack shows ads.

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