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.
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.
- Response inhibition assessment
- Attention division test
- Measures time to complete
- Counts mistakes
- Interference processing evaluation
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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.
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.
- Sine, square, sawtooth, triangle wave generation
- Frequency range 50Hz - 16000Hz
- Custom frequency setting
- Timer functionality
- Musical note tuning
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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
Verdict
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
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.
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.
| Parameter | Stroop Test J Lite | Frequency Generator (Ape Apps) |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.7 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 36 months | Every 5 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuya Kawakami | Brandon Stecklein |
Customer experience
Stroop Test J Lite
Frequency Generator (Ape Apps)
In-app purchases
Stroop Test J Lite
No in-app purchases
Frequency Generator (Ape Apps)
- Frequency Generator Premium$2.99
Questions
Is Stroop Test J Lite free?
Is Frequency Generator (Ape Apps) free?
Do Stroop Test J Lite or Frequency Generator (Ape Apps) have ads?
Which is updated more often, Stroop Test J Lite or Frequency Generator (Ape Apps)?
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