Comparison

Phase Timer Pro vs HullBook

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

Head to head
About

Phase Timer Pro

Features
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Fully customisable phase timer featuring groupable steps which can be configured to include audio/visual notifications for timed sequences. Can be used for anything from Chemistry Lab tests to Physical Fitness training. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

HullBook

Features
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Keep the work you plan connected to the history you keep. HullBook helps boat owners organize repairs, maintenance, spares, checklists, engine hours, trips, fuel and expenses. YOUR VESSEL WORKSHOP See open repairs and parts that need restocking together. Give a repair a target date and notes. When the work is done, record the service and deduct the spare you used in one save. Completed repairs remain in your records. SPARES WHERE YOU CAN FIND THEM Keep part numbers, equipment names, storage locations, stock counts and photos. Set a minimum quantity and filter the items that need restocking. Search by name, part number, equipment or location. CHECKLISTS THAT FIT YOUR BOAT Create and reorder your own checklist items, then work through a saved run. Each run keeps its own checklist snapshot, so later template changes do not rewrite your history. Built-in departure and seasonal checklists remain available too. MAINTENANCE, HOURS AND TRIPS Plan recurring work by engine hours or calendar months. Record service dates, costs, parts and notes. Keep meter readings and trips with crew, conditions, distance and duration. Use the recorded history for maintenance forecasts and next-trip fuel estimates. FUEL AND OWNERSHIP COSTS Record fuel fills and expenses such as docking, insurance and storage. Review seasonal totals and category breakdowns. Fuel planning estimates use the readings you have recorded; they are not navigation or safety calculations. DOCUMENT THE WORK Create a printable Service History PDF with boat details, service notes, maintenance, repair and inventory information, plus checklist history. Export expenses as CSV for a spreadsheet. PDFs use white pages and readable typography. FREE PREVIEW AND PRO New free users can keep one boat, up to two log records, and one built-in checklist run. Pro opens additional records and boats, repair planning, spare-parts inventory, custom checklists, recurring maintenance creation, maintenance forecasts, fuel planning, season cost snapshots, PDF reports and expense CSV export. Existing records remain available when Pro ends. Eligible existing installations keep their previous free allowance. Choose monthly, yearly or a one-time Lifetime purchase. The App Store shows the local price before confirmation. Subscriptions renew automatically unless cancelled; manage or cancel them in your App Store account settings. Lifetime does not renew. Records are stored locally. Private iCloud synchronization depends on your Apple Account, network and iCloud settings. No separate HullBook account is required. Support messages are sent only when you submit the form and include diagnostic information. HullBook is a recordkeeping tool. Always follow your equipment manuals, required inspections and qualified marine advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://innovalabworks.com/a/hullbook/privacy Support: https://innovalabworks.com/a/hullbook/support

Screenshots

Phase Timer Pro4 screens
HullBook4 screens

Verdict

The call

The clearest difference is price: HullBook at Free against Phase Timer Pro's $4.99. HullBook also leads on update cadence (every 3 weeks vs every 19 months). Phase Timer Pro's advantage is iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support 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

HullBook is free to download; Phase Timer Pro costs $4.99 up front. Phase Timer Pro sells 1 in-app purchase, starting at $9.99 per year and HullBook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Phase Timer Pro ships an update every 19 months, HullBook every 3 weeks. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

Scorecard3 real differences ยท 3 level
Phase Timer Pro versus HullBook: the parameters behind the verdict, then further details
ParameterPhase Timer ProHullBook
Price$4.99Free โ€” better
Update frequencyEvery 19 monthsEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better18.0
Further details โ€” not scored
Size2 MB6 MB
Age rating4+4+
DeveloperFreestyle Photo & ImagingInnovaLabWorks

In-app purchases

1 purchases

Phase Timer Pro

Subscriptions1
  • Phase Timer Pro$9.991 Year
1 purchases

HullBook

One-time1
  • HullBook Lifetime$17.99

Questions

Is Phase Timer Pro free?
Phase Timer Pro costs $4.99, and also offers in-app purchases.
Is HullBook free?
HullBook is free to download, with in-app purchases available.
Do Phase Timer Pro or HullBook have ads?
Neither Phase Timer Pro nor HullBook shows ads.
Which is updated more often, Phase Timer Pro or HullBook?
Phase Timer Pro ships an update every 19 months, and HullBook every 3 weeks. Most recently, Phase Timer Pro was updated on October 7, 2026 and HullBook on September 30, 2026.

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