Comparison

Stroop Test J Lite vs Frequency Generator (Ape Apps)

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

Head to head
About

Stroop Test J Lite

This app measures response inhibition and attention by presenting a classic cognitive test. It helps assess potential frontal lobe dysfunction and interference processing. Results indicate time taken and errors, with higher scores suggesting greater impairment.

Highlights
  • Response inhibition assessment
  • Attention division test
  • Measures time to complete
  • Counts mistakes
  • Interference processing evaluation
Features
Read full description

The Stroop test is used primarily to assess an individual's impaired response inhibition due to frontal lobe dysfunction, problems with simultaneous interference, and ability to divide attention. Test instruction: Respondents are required to touch the words according to the instructions. At first, measure normal scores then measure Strooped (color interfered) scores. Results: Results are reported as the number of seconds required to complete the task and number of mistakes; therefore, higher scores reveal greater impairment. A rough standard: Score is depends on age or gender however most in 50% longer time and less than 10mistakes.

About

Frequency Generator (Ape Apps)

Generate various audio waveforms like sine, square, sawtooth, and triangle waves. Adjust frequencies from 50Hz to 16000Hz, set custom timers, or tune to musical notes for diverse applications.

Highlights
  • Sine, square, sawtooth, triangle wave generation
  • Frequency range 50Hz - 16000Hz
  • Custom frequency setting
  • Timer functionality
  • Musical note tuning
Features
Read full description

Make sure your device audio is turned on before use (not in vibrate mode)! This frequency generator allows you to generate sine, square, sawtooth, or triangle waves in the 50HZ to 16000 HZ range. The app is easy to use. It can probably be used for multiple purposes, such as dog whistle, noise maker, tinnitus relief, relaxation or meditation, or just annoying your friends. You can set a custom frequency, set a timer, or even tune to a musical note. Let me know what extra features you would like to see added!

Screenshots

Stroop Test J Lite1 screens
Frequency Generator (Ape Apps)3 screens

Verdict

The call

The clearest difference is in-app purchases: Stroop Test J Lite at none against Frequency Generator (Ape Apps)'s 1. Frequency Generator (Ape Apps)'s advantage is update cadence (every 5 months vs every 36 months). On price, review sentiment, 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. Frequency Generator (Ape Apps) sells 1 one-off in-app purchase. Stroop Test J Lite asks for nothing beyond the download.

UpkeepUpdate frequency

Stroop Test J Lite ships an update every 36 months, Frequency Generator (Ape Apps) every 5 months. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
Stroop Test J Lite versus Frequency Generator (Ape Apps): the parameters behind the verdict, then further details
ParameterStroop Test J LiteFrequency Generator (Ape Apps)
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 36 monthsEvery 5 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS17.6 — better18.0
Further details — not scored
Size4 MB9 MB
Age rating4+4+
DeveloperTakuya KawakamiBrandon Stecklein

Customer experience

Stroop Test J Lite

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Frequency Generator (Ape Apps)

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Stroop Test J Lite

No in-app purchases

1 purchases

Frequency Generator (Ape Apps)

One-time1
  • Frequency Generator Premium$2.99

Questions

Is Stroop Test J Lite free?
Stroop Test J Lite is free to download, with no in-app purchases.
Is Frequency Generator (Ape Apps) free?
Frequency Generator (Ape Apps) is free to download, with in-app purchases available.
Do Stroop Test J Lite or Frequency Generator (Ape Apps) have ads?
Both Stroop Test J Lite and Frequency Generator (Ape Apps) show ads.
Which is updated more often, Stroop Test J Lite or Frequency Generator (Ape Apps)?
Stroop Test J Lite ships an update every 36 months, and Frequency Generator (Ape Apps) every 5 months. Most recently, Stroop Test J Lite was updated on October 14, 2026 and Frequency Generator (Ape Apps) on October 20, 2026.

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