Comparison

Castor Connect vs Full Signal

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

Head to head
About

Castor Connect

This app allows study participants to securely complete electronic patient-reported outcome (ePRO) questionnaires on their mobile devices. It offers offline data storage and manual syncing for flexibility. Access requires an invitation or activation code.

Highlights
  • ePRO questionnaire completion
  • Offline data storage
  • Manual data sync
  • Secure participant data
  • Native mobile application
Read full description

Castor Connect enables study participants to complete Castor Surveys (ePRO questionnaires) via a native mobile application. - Compliant, secure, user-friendly ePRO solution - Configured using our EDC product to be as simple or complex as your study demands - Flexible and secure, offline data storage with manual sync and native security mean participants can submit their study data whenever they need An invitation to take part or the scanning of a participant-specific activation code is required to use this application. You can find more information about Castor surveys or Castor Connect at castoredc.com/epro

About

Full Signal

This app helps individuals on GLP-1 therapies maintain consistency with their weekly medication and understand their body's responses. It offers simple check-ins, shot reminders, and pattern insights without the burden of extensive logging.

Highlights
  • Weekly shot tracking
  • Routine reminders
  • Quick body check-ins
  • Pattern insights
  • Optional health data integration
  • Data export (JSON/CSV)
Features
Read full description

Full Signal requires a paid subscription to use. Choose a monthly or yearly subscription to unlock check-ins, shot tracking, reminders, exports, and pattern insights. Start with a free trial on either plan. Full Signal is a calm companion for people using GLP-1 therapies. It helps you stay consistent with your weekly shot and better understand how your body feels between doses, without the burden of traditional tracking. No calorie counting. No macros. No clutter. Just a simple routine you can actually keep. HOW IT WORKS Record your weekly shot Set your routine once. Your medication, dose, and timing stay ready so you can confirm in seconds. Check in quickly A few taps to capture how you feel. No scrolling. No forms. No friction. See patterns over time Understand what is working without tracking everything. Full Signal highlights trends in how you feel, not just what you log. DESIGNED FOR REAL LIFE Full Signal is built for people who want clarity without complexity. Fast, guided check-ins Weekly shot reminders Optional follow-up check-ins after your shot Lightweight notes when you need them No ads or distractions Export data in JSON or CSV OPTIONAL, NOT OVERWHELMING You can keep it simple or add context when you want: Mark if you had protein, water, or fiber today Connect Apple Health for optional weight trend context Everything stays optional and low effort A DIFFERENT APPROACH Most apps ask you to track everything. Full Signal focuses on what matters. No pressure. No noise. Just a clearer picture over time. --------------------------------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fullsignalapp.com/privacy

Screenshots

Castor Connect3 screens
Full Signal4 screens

Verdict

The call

The clearest difference is in-app purchases: Castor Connect at none against Full Signal's 2. Castor Connect also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). Full Signal's advantage is update cadence (weekly vs every 2 months). On price and ads 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. Full Signal sells 2 in-app purchases, starting at $4.99 per month. Castor Connect asks for nothing beyond the download.

UpkeepUpdate frequency

Castor Connect ships an update every 2 months, Full Signal weekly. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

Scorecard5 real differences · 4 level
Castor Connect versus Full Signal: the parameters behind the verdict, then further details
ParameterCastor ConnectFull Signal
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.0
Further details — not scored
Size28 MB2 MB
Age rating4+4+
DeveloperCiwit B.V.TRISTAN ROBERT NOHRER

Customer experience

Castor Connect

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%

Full Signal

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Castor Connect

No in-app purchases

2 purchases

Full Signal

Subscriptions2
  • Full Signal Monthly14 Days trial$4.991 Month
  • Full Signal Yearly1 Month trial$49.991 Year

Questions

Is Castor Connect free?
Castor Connect is free to download, with no in-app purchases.
Is Full Signal free?
Full Signal is free to download, with in-app purchases available.
Do Castor Connect or Full Signal have ads?
Neither Castor Connect nor Full Signal shows ads.
Which is updated more often, Castor Connect or Full Signal?
Castor Connect ships an update every 2 months, and Full Signal weekly. Most recently, Castor Connect was updated on October 25, 2026 and Full Signal on October 22, 2026.

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