GasBook vs DayNook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GasBook
This app helps anaesthetic and ICM trainees log their training data for RCOA reports. It simplifies tracking TIVA and THRIVE usage with graphical summaries and detailed reports. Data can be backed up to iCloud and exported in Excel or PDF formats.
- RCOA training report data gathering
- TIVA and THRIVE usage logging
- Graphical specialty breakdown
- Customizable quick entry options
- Detailed report filtering
- iCloud automatic backup
- Excel and PDF export
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GasBook is a native iOS logbook app for anaesthesia designed and written by an Anaesthetic Trainee. It’s specifically designed to gather data required for RCOA training reports and perfect for Anaesthetic Trainees and SAS Doctors. In addition to the LLP required information, it makes it easier to log and review use of TIVA and THRIVE. Key Features: * Graphical summaries for specialty breakdown * See your breakdown of TIVA v Volatile at a glance * Custom quick picker to speed up adding multiple regional techniques and procedures * Quick Add button to speed up adding multiple cases * Toggle for ICM Placements to streamline ICM data entry * Detailed Reports based on: * Specialty * Anaesthetic Mode & Airway * Level of Supervision * Teaching * Procedures * Regional Techniques * Priority * Time of Day * ICM activities * Specialty reports such as Neuro, Paeds, Cardiothoracics, Pain * Filter summaries and reports by preset filters, custom dates, and placements * Automatically backup data to your iCloud account for secure storage * Export and Import backups in excel format * Import excel files from LLP, Anaesthetics.app and Medberry logbooks * Export PDF Summary just like the LLP one * Fully Native Dark Mode Premium Features: * Choose a custom App Icon * Add custom procedure and regional techniques * Use custom operation names NB: The pain logging is based on the LLP logbook, rather than Faculty of Pain Medicine for ease of use for most anaesthetic trainees. Those wishing to specialise in Pain Medicine should check to ensure the Faculty of Pain Medicine's logbook isn't a compulsory requirement. Please remember to export backups of your logbook regularly. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DayNook
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DayNook is the family organiser that does the hard work for you. Instead of manually copying dates and tasks from emails, WhatsApp messages, school newsletters and screenshots, DayNook reads them for you — extracting events, deadlines and to-dos automatically, then putting them somewhere your whole family can see and act on. Always in sync, across the whole family Every event and task lives in one shared space. When something is added, updated or completed, every family member sees it instantly. No more missed messages, no more "did you know about this?" — DayNook keeps everyone on the same page, in real time. How it works Share anything into DayNook — a forwarded school email, a WhatsApp screenshot, a PDF letter or a pasted note. DayNook's AI reads it, pulls out the key information, and suggests events and tasks for you to confirm. One tap and it's in your family planner. RSVP without the faff When an invite comes in, DayNook spots it and gives you Accept and Decline buttons right on the event. Your response is saved and your calendar updated automatically, helping everyone stay up to date. Connected to your calendar DayNook syncs events to Google, Apple or other calendars so nothing lives in a silo. Add an event in DayNook, it appears everywhere. Built for busy parents No complicated setup. Add your family members, connect your calendar, and start sharing things in. DayNook handles the rest. Key features: • AI extraction from emails, WhatsApp, screenshots and PDFs • Shared family planner — always in sync across every family member • Real-time updates so nothing gets missed • RSVP tracking on invites • Google Calendar and Apple Calendar sync • Email forwarding inbox — forward school emails directly in • Assign tasks and tag children by name • "Coming up this week" view for each child on the home screen • Weekly summary notifications • Family activity feed Subscription DayNook Premium is a 6-month auto-renewing subscription with a 1 month free trial. Payment is charged to your Apple ID at the end of the trial unless cancelled at least 24 hours before it ends. Manage or cancel anytime in Settings > Apple ID > Subscriptions. Privacy Policy: https://daynook.app/privacy Terms of Service: https://daynook.app/terms
Screenshots
Verdict
The clearest difference is update cadence: DayNook at weekly against GasBook's every 5 weeks. DayNook also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases 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. GasBook sells 3 in-app purchases, starting at $5.99 per year and DayNook sells 1 in-app purchase, starting at $5.99 per 6 months. Whichever you choose, the download price is not the number that matters.
GasBook ships an update every 5 weeks, DayNook weekly. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.
| Parameter | GasBook | DayNook |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 65 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicholas Clinch | MARK CHRISTOPHER WINSTANLEY |
In-app purchases
GasBook
- Annual Subscription$5.991 Year
- Buy Me A Coffee$6.99
- Coffee For The Team$9.99
DayNook
- DayNook Premium1 Month trial$5.996 Months









