Comparison

SelfAssay vs Arctop

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

Head to head
About

SelfAssay

Features
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SelfAssay is a research workspace for people who self-experiment with supplements, peptides, and nootropics. Look up the evidence, then find out with your own data whether your stack is actually working for you. IMPORTANT SelfAssay is decision support for your own research. It is not medical advice and does not diagnose, treat, cure, or prevent any disease. It does not sell, source, or recommend any compound, and it does not encourage the acquisition or use of any substance, including prescription or research compounds. Always consult a qualified clinician and follow the laws where you live. LOOK UP ANY COMPOUND Search a growing index of 500+ compounds. Each dossier shows an effectiveness grade by purpose (sleep, focus, recovery, fat loss, and more) and a separate safety grade, both computed from thousands of classified first-hand community reports. See the most-reported effects and side-effects, cited studies and clinical trials, and clinical biomarker directions. When there is not enough first-hand data yet, you see a dash. We never guess. TRACK YOUR OWN STACK Log the compounds you take with dose and schedule, run daily check-ins for energy, focus, mood, and sleep, and set up simple n-of-1 experiments. Connect Apple Health to layer your sleep, HRV, and resting heart rate onto the days you took a compound versus the days you did not. The correlation is computed entirely on your device. MORE TOOLS - Companion: an AI assistant for compound questions, grounded in the dossier data so it refuses rather than fabricates. - Pre-Flight: surfaces interaction and safety considerations reported in the community and the literature for a planned stack, as information to review with a qualified clinician. - Decoder: organizes the values from your own lab report for your reference and lines them up against your stack. It does not diagnose or interpret your results. - Protocols: save and revisit structured protocols. PRIVATE BY DESIGN Your vault is encrypted at rest. Apple Health data stays on your device and is never sent to our servers. There is no third-party analytics and no tracking. Export or permanently delete your account and data anytime from the app. FREE TO USE Core research and tracking are free to use. Companion, Pre-Flight, and Decoder have free limits, and advanced use is part of SelfAssay Pro. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://selfassay.com/privacy Support: hi@selfassay.com

About

Arctop

Features
Read full description

Arctop turns your Master & Dynamic MW75 Neuro headphones into a real-time brain-computer interface. Connect over Bluetooth, stream 12 channels of EEG at 500 Hz, and watch your brain activity flow on screen the moment you put your headphones on. REAL-TIME EEG STREAMING - Connect to MW75 Neuro headphones in seconds - Automatic on-head detection - Packet rate, signal quality, and session timer at a glance - Background streaming keeps your session running while you use other apps COGNITIVE WORKLOAD - Calibrate your personal workload model - Start a session and measure your cognitive data in real time while you work SESSION HISTORY AND METRICS - Every session is recorded and organized in your history - Review duration, average cognitive workload, and workload distribution - Go deep on any session with workload over time, time-in-zone, and between-marker breakdowns - Download your own workload data as CSV files - Weekly insights and streaks on your personal dashboard PRIVATE BY DESIGN - Sign in with your Google account - Your neural data never leaves your device unencrypted - Your brain data belongs to you โ€” delete your account (and data) at any time TRY IT WITHOUT HARDWARE Curious how it works? Demo Mode lets you explore the full app โ€” live streaming, workload sessions, history, and dashboard โ€” with simulated data, no headphones required. REQUIREMENTS - Master & Dynamic MW75 Neuro headphones for live EEG streaming (Demo Mode works without them) - An Arctop account (Google Sign-In) - iOS 17 or newer (iPhone and iPad) Arctop is a neurotechnology platform for real-time brain measurement. This app is not a medical device and is not intended to diagnose, treat, or prevent any condition.

Screenshots

SelfAssay4 screens
Arctop4 screens

Verdict

The call

The clearest difference is in-app purchases: Arctop at none against SelfAssay's 2. Arctop also leads on update cadence (every 3 days vs every 10 days). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SelfAssay sells 2 in-app purchases, starting at $19.99 per month. Arctop asks for nothing beyond the download.

UpkeepUpdate frequency

SelfAssay ships an update every 10 days, Arctop every 3 days. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

Scorecard2 real differences ยท 4 level
SelfAssay versus Arctop: the parameters behind the verdict, then further details
ParameterSelfAssayArctop
PriceFreeFree
Update frequencyEvery 10 daysEvery 3 days โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS16.4 โ€” better17.0
Further details โ€” not scored
Size67 MB14 MB
Age rating17+4+
DeveloperSandro AndricArctop

In-app purchases

2 purchases

SelfAssay

Subscriptions2
  • SelfAssay Pro$19.991 Month
  • SelfAssay Pro$149.991 Year
None

Arctop

No in-app purchases

Questions

Is SelfAssay free?
SelfAssay is free to download, with in-app purchases available.
Is Arctop free?
Arctop is free to download, with no in-app purchases.
Do SelfAssay or Arctop have ads?
Neither SelfAssay nor Arctop shows ads.
Which is updated more often, SelfAssay or Arctop?
SelfAssay ships an update every 10 days, and Arctop every 3 days. Most recently, SelfAssay was updated on October 14, 2026 and Arctop on October 9, 2026.

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