Comparison

Audio Compressor vs BrainGymG

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

Head to head
About

Audio Compressor

Reduce audio file sizes without sacrificing sound quality. This app offers efficient compression, allowing you to reclaim storage space on your device. Easily compress audio from files or videos with offline processing.

Highlights
  • Efficient audio compression
  • Reduce file sizes without quality loss
  • Compress audio from files or videos
  • Fast and easy to use
  • Offline processing for privacy
  • Adjust bitrate and remove metadata
Features
Read full description

Audio Compressor is the must-have app for iOS users looking to optimize their audio collection and reclaim valuable storage space. With its advanced compression technology, this app allows you to drastically reduce audio file sizes without compromising on sound quality. Effortlessly compress your audio files with just a few taps, achieving great reduction in size while maintaining exceptional audio fidelity. By intelligently tweaking the bitrate and removing unnecessary metadata, Audio Compressor ensures that you can enjoy high-quality audio content without sacrificing precious storage space. - Fast and easy to use Just select your media file and choose one of the available compressions. You can also export compressed audio from video files. - Works offline The whole audio compression is done offline using the power of your iOS device, in respect to your data privacy. Don't let bulky audio files weigh you down—download Audio Compressor today and unlock the perfect balance between file size and audio excellence.

About

BrainGymG

Features
Read full description

Brain training grounded in cognitive science. 5 core games × 20 difficulty levels. 10 minutes a day to sharpen your mind. Attention Forge is a science-based brain training app designed to improve your core cognitive abilities through short, engaging daily sessions. Built around five classic cognitive science paradigms, each game targets a specific mental faculty: - Quick Tap — Reaction speed & processing. Tap targets as they appear before they disappear. - Color Clash — Inhibition control (Stroop paradigm). Select the ink colour, ignore the word. - Dual N-Back — Working memory. Remember positions and letters from N steps back. - Visual Search — Visual attention. Find the odd one out in a field of similar items. - Focus Track — Sustained attention & vigilance. Detect subtle changes in moving dots. Key Features - Cognitive Profile — After each session, your performance updates a 5-dimension radar chart (attention, memory,reaction, inhibition, focus). Track your improvement over time with trend charts and weekly history. - Brain Age — A single, easy-to-understand metric that estimates your cognitive age based on composite performance. Watch it trend younger as you train. - Daily Challenge — A fresh challenge every day with a random mode and level. Complete it to earn bonus rewards and maintain your training streak. - Weekly Tournament — Compete on a global leaderboard each week. See how your scores stack up against other players. - Friend Challenges — Generate a share code and challenge a friend head-to-head on the same game. - AI Training Plan — The app analyses your weakest dimensions and recommends a personalised 5-day training plan to balance your cognitive profile. - Achievements & Streaks — Unlock milestones as you progress, from your first game to 100 games played. Keep your daily streak alive to build lasting habits. - Ability Assessment — A 5-minute multi-mode test that pinpoints your ability level in each cognitive dimension using an adaptive bisection method. Science Behind the Games - Posner Spatial Cueing Paradigm (Visual Search) — trains selective and orienting attention. - Stroop Effect (Color Clash) — trains cognitive inhibition by creating word-colour conflict. - Dual N-Back (Dual N-Back) — the most studied working memory training paradigm; research links it to fluid intelligence improvements. - Hick's Law / Choice Reaction Time (Quick Tap) — trains rapid decision-making under time pressure. - Continuous Performance Task (Focus Track) — trains sustained attention and vigilance. Regular cognitive training has been shown to produce significant improvements in cognitive function (Ball et al., 2002). We recommend 10–15 minutes of daily training for best results. Free to Play No account required. All training modes, cognitive profiling, daily challenges, tournaments, and training plans are fully free. The first 10 levels of Quick Tap and first 3 levels of other modes are immediately accessible — watch a short rewarded ad to unlock additional levels. No subscription needed.

Screenshots

Audio Compressor3 screens
BrainGymG4 screens

Verdict

The call

The clearest difference is in-app purchases: BrainGymG at none against Audio Compressor's 1. BrainGymG also leads on iOS requirement (13.0 vs 15.6). Audio Compressor's advantage is ads (none vs shown) and update cadence (weekly vs fortnightly). On price 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. Audio Compressor sells 1 one-off in-app purchase. BrainGymG asks for nothing beyond the download.

UpkeepUpdate frequency

Audio Compressor ships an update weekly, BrainGymG fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Audio Compressor versus BrainGymG: the parameters behind the verdict, then further details
ParameterAudio CompressorBrainGymG
PriceFreeFree
Rating4.6 (260 ratings) — better—
Positive reviews55.6% of reviews—
Number of ratings260 — better—
Update frequencyWeekly — betterFortnightly
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size19 MB30 MB
Age rating4+17+
DeveloperArthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.梁 张

In-app purchases

1 purchases

Audio Compressor

One-time1
  • Audio Compressor Premium$0.99
None

BrainGymG

No in-app purchases

Questions

Is Audio Compressor free?
Audio Compressor is free to download, with in-app purchases available.
Is BrainGymG free?
BrainGymG is free to download, with no in-app purchases.
Do Audio Compressor or BrainGymG have ads?
BrainGymG shows ads; Audio Compressor does not.
Which is updated more often, Audio Compressor or BrainGymG?
Audio Compressor ships an update weekly, and BrainGymG fortnightly. Most recently, Audio Compressor was updated on October 30, 2026 and BrainGymG on October 31, 2026.

Other comparisons