Comparison

IHSIM vs Clouds Flashcards

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

Head to head
About

IHSIM

This application simulates acoustic hearing loss and cochlear implant processing in real-time. It allows for custom spectral filtering based on audiograms and offers various cochlear implant simulation parameters. Designed for research and education, it helps users understand auditory perception.

Highlights
  • Acoustic hearing loss simulation
  • Cochlear implant simulation
  • Custom spectral filtering
  • Filterbank vocoder
  • Binaural stimulation options
  • Research and educational use
Features
Read full description

IMPAIRED HEARING SIMULATION (IHSIM) This app performs separate simulations of acoustic hearing loss and cochlear implant processing. These simulations process the audio input from the iOS device in real-time. In the acoustic hearing loss simulation, a user can achieve custom spectral filtering based on a listener's audiogram. Six presets are also provided of common audiogram functions. A dynamic range compressor is included, along with a frequency smearing algorithm to flatten the signal's spectrum and perform subtle pitch modulation. In the cochlear implant simulation, a filterbank vocoder is implemented. The number of frequency bands is selectable, along with the carrier signal (noise or sine wave vocoder), the frequency divisions (Logarithmic or Greenwood function), and the overall bandwidth. Electric-only and "hybrid" acoustic-electric cochlear implants are modeled. Several monaural and binaural stimulation options are selectable. HEADPHONES AND SENNHEISER SMART AMBEO HEADSET This app was created as part of the Sennheiser Developers Program for the Smart AMBEO Headset. The app is capable of processing a stereo input signal, taking advantage of the "augmented reality" features of the headset. The app is also fully-functional using a conventional set of headphones with a mono microphone input. It is highly recommended to use headphones of some type with the app. FOR RESEARCH AND EDUCATIONAL PURPOSES The intended use of the app is for auditory perception research. The app may have additional educational purposes related to hearing loss. The app should not be used for medical purposes. INFORMATION Resources related to the app are available at: hackaudio.com

About

Clouds Flashcards

Features
Read full description

Language learning requires study. I was disappointed with the flash card apps that were available, so I decided to write my own. I have been studying French for 20 years, I don't know why, but I want to learn French. I can never remember the genders of the nouns. In this app, I made it so gendered nouns have colors, and it works, now when I remember a noun, I can see the flash card it was on, and I know by the color what gender it is. If you are more of an auditory learner, I added sounds that are played before the word is pronounced. There are a variety of sounds (and colors) and you can assign what you associate with the gender. I made a travel mode that plays each set on repeat. You can have the words spoken, or not. You can practice answering. You can write in your answer, or speak it. You can get a clue, if you want. These are all options you can turn off. And if you would like, you can score points. 1 point for each card you study once per hour, and 10 points for filling out a correct answer, once per day, up to 10 times. I'll add some features as I think of them, or if they are requested, but for now, it's time to stop working on the app, and get back to studying French. https://cloudsflashcards.com/privacypolicy https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

IHSIM4 screens
Clouds Flashcards4 screens

Verdict

The call

The clearest difference is in-app purchases: IHSIM at none against Clouds Flashcards's 1. IHSIM also leads on iOS requirement (9.3 vs 13.4). Clouds Flashcards's advantage is update cadence (every 4 days vs monthly). On price, ads 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. Clouds Flashcards sells 1 in-app purchase, starting at $1.99 per month. IHSIM asks for nothing beyond the download.

UpkeepUpdate frequency

IHSIM ships an update monthly, Clouds Flashcards every 4 days. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
IHSIM versus Clouds Flashcards: the parameters behind the verdict, then further details
ParameterIHSIMClouds Flashcards
PriceFreeFree
Rating3.0 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.3 — better13.4
Further details — not scored
Size5 MB35 MB
Age rating4+4+
DeveloperHack Audio LLCRobert Rathbone

In-app purchases

None

IHSIM

No in-app purchases

1 purchases

Clouds Flashcards

Subscriptions1
  • Monthly Subscription$1.991 Month

Questions

Is IHSIM free?
IHSIM is free to download, with no in-app purchases.
Is Clouds Flashcards free?
Clouds Flashcards is free to download, with in-app purchases available.
Do IHSIM or Clouds Flashcards have ads?
Neither IHSIM nor Clouds Flashcards shows ads.
Which is updated more often, IHSIM or Clouds Flashcards?
IHSIM ships an update monthly, and Clouds Flashcards every 4 days. Most recently, IHSIM was updated on September 29, 2026 and Clouds Flashcards on September 30, 2026.

Other comparisons