Comparison

ClapReverb vs eFSKILL

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

Head to head
About

ClapReverb

Instantly measure the reverberation time of any enclosed space with a simple clap. This app analyzes room acoustics, helping you determine if a space is too echoey or too dry. It's a scientifically validated tool for professionals and curious individuals alike.

Highlights
  • Measure reverberation time
  • Analyze room acoustics
  • Simple clap-based measurement
  • Intuitive interface
  • Scientifically validated results
  • Compare to reference values
Read full description

Measure the acoustics of a room... with a simple clap ClapReverb lets you instantly evaluate the reverberation time (RT) of an enclosed space — a key factor in determining a room’s acoustic quality. Is the room too echoey? Or too dry? Get the answer in just a few seconds. Simple, fast, and precise With a clean design and intuitive interface, all it takes is a quiet moment and five hand claps. Place your phone or tablet at the center of the room, wait for the signal, and clap your hands (slightly cupped palms). The app analyzes the relevant frequencies and provides a clear picture of the room's acoustics. A professional tool, accessible to everyone Whether you’re an architect, interior designer, engineer, teacher, musician — or simply curious — ClapReverb is for anyone who wants to integrate acoustics into their projects. Easily compare your results to typical reference values and decide if acoustic treatment is needed. Scientifically validated The app’s results have been verified through a rigorous experimental protocol, presented at the 26th International Congress on Sound & Vibration. Your feedback helps us improve. Questions or suggestions? Write to us at clapreverb@atelier7hz.com. We’d love to hear from you!

About

eFSKILL

Features
Read full description

eFSKILL helps eFootball players keep track of skill training items across multiple accounts. Record the number of each skill you have, switch between field player and goalkeeper skill groups, filter the list, and quickly see which skills are out of stock. The Stats tab summarizes total stock, completion rate, top category, and out-of-stock skills so you can plan upgrades without checking every item manually. Key features: - Track skill item counts by account - Manage field player and goalkeeper skills separately - Search and filter the skill list - Review stock totals and category charts - Export and import backup data - English and Japanese interface support

Screenshots

ClapReverb4 screens
eFSKILL3 screens

Verdict

The call

The clearest difference is iOS requirement: ClapReverb at 15.6 against eFSKILL's 18.0. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
ClapReverb versus eFSKILL: the parameters behind the verdict, then further details
ParameterClapReverbeFSKILL
PriceFreeFree
Rating4.4 (14 ratings) — better—
Positive reviews41.9% of reviews—
Number of ratings14 — better—
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size18 MB5 MB
Age rating4+4+
DeveloperAtelier 7hzYuta Noguchi

In-app purchases

None

ClapReverb

No in-app purchases

None

eFSKILL

No in-app purchases

Questions

Is ClapReverb free?
ClapReverb is free to download, with no in-app purchases.
Is eFSKILL free?
eFSKILL is free to download, with no in-app purchases.
Do ClapReverb or eFSKILL have ads?
Neither ClapReverb nor eFSKILL shows ads.

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