CNS Tap Test vs Estelle studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CNS Tap Test
This app measures central nervous system (CNS) status using a finger tapping test. Track your performance over time to identify optimal training days or potential fatigue, sickness, or injury.
- Measures central nervous system status
- Tracks finger tapping speed
- Establishes baseline performance
- Identifies CNS fatigue
- Graphs and saves test results
- Allows for multiple daily samples
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As featured in the book Beyond Training by Ben Greenfield. As featured in the podcasts: - Harder to Kill Radio 026 - Ameer Rosic Optimal Health Show #58 - Ben Greenfield Fitness #263 CNS Tap Test is an adaptation of the Finger Tap Test (FTT) or Finger Oscillation Test (FOT) which is used to measure the status of the central nervous system (CNS), and is one of the most commonly used tests in neuropsychology, because of its simplicity and reliability, and because it generates relevant data about fine motor control, which is based on motor speed as well as kinesthetic and visual-motor ability. The application should be used on a regular basis to determine an athlete’s baseline. If the CNS Tap Test result is elevated it is suitable for a maximum effort or a heavy lifting day. If the CNS Tap Test result is lower than average it may indicate CNS fatigue and impending sickness, injury or over-training. Both hands should be tested on a regular basis in a consistent environment, typically every morning on waking. The procedure for testing is: - Rest hand palm down on the heel of the hand on a flat surface - Tapping is done with the index (pointing finger), and all other fingers remain on the flat surface - The timer starts with the first tap - When the timer expires no further taps will be accepted - The result can either be saved or discarded. Multiple samples can be saved per day. The resulting data can be graphed, emailed or managed from within CNS Tap Test. Using Swift Charts for improved accessibility and legibility.
Estelle studio
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Mobile application for customers of Estelle Pilates and Yoga studio. Customers can register online, book an appointments, track subscriptions and visits history. Receiving news and notifications from Estelle studio.
Screenshots
Verdict
The clearest difference is price: Estelle studio at Free against CNS Tap Test's $1.99. Estelle studio also leads on iOS requirement (12.0 vs 16.0). CNS Tap Test's advantage is update cadence (every 3 months vs every 25 months) and chart position (#164 vs unranked). On 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
Estelle studio is free to download; CNS Tap Test costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CNS Tap Test ships an update every 3 months, Estelle studio every 25 months. The most recent releases landed on October 19, 2026 and October 4, 2026 respectively.
| Parameter | CNS Tap Test | Estelle studio |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.6 (277 ratings) — better | — |
| Positive reviews | 68.8% of reviews | — |
| Number of ratings | 277 — better | — |
| Update frequency | Every 3 months — better | Every 25 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #164 — better | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 18 MB |
| Age rating | 4+ | 12+ |
| Developer | smudge.io PTY LTD | Estelle Pilates and Yoga |
Bugs and requests
CNS Tap Test
Reported bugs
1 issue- Cannot port data when switching iPhones
Requested features
11 requests- Add time of day to graphs
- Set parameters on graph
- Integrate data from sleep/step trackers
- Sync with calendar
- Option for 'best out of 3'
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- Daily average option
- Record more than 1 test per day
- Allow unlimited tests per day
- Include time (of day) in data export
- Put date in ISO standard: yyyy-mm-dd
- Reminders
Estelle studio
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CNS Tap Test
No in-app purchases
Estelle studio
No in-app purchases









