Time to Invoice vs Hourbook
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Time to Invoice
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Please observe that there might not be any new versions of this app. Time to Invoice is an easy to use tool to keep track of your time. You register your time for different customers and activities. And in addition you have the possibility to create invoice data and reports based on the time registrations. Included functionality: - Timer - Pricing for customer and activity - Selectable detail level for the invoice data - Reporting tool - Possibility to export invoice data - Export of reports for further analysis in for example Numbers or Excel A limited number of time registrations are included in this version. Upgrade the app to Premium for unlimited usage. Use this app to remember your time to invoice and to easily create invoice data.
Hourbook
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Hourbook is a work hours tracker that turns your timesheet into invoices and PDF reports. Start the timer with one tap, log hours and mileage by hand, and see each project's time and budget at a glance ā on iPhone, iPad and Apple Watch. Made for freelancers, contractors, consultants and anyone who bills by the hour ā or simply wants to know where their working time goes. Private by design: no account, no ads, no analytics. Your hours stay on your devices and in your own iCloud. TRACK TIME ⢠One-tap timer ā also from Control Center, the Lock Screen, widgets and Apple Watch ⢠Log entries and to-dos right in the list, and adjust them in 15-minute steps ⢠Mileage, travel expenses and receipts on any entry ⢠Day, week, month, quarter and year views with clear graphs ⢠Undo and redo your changes PROJECTS, CLIENTS AND BUDGETS ⢠Projects with their own colors, icons, hourly rates and budgets ⢠Clients, employers, school and hobbies, each with their own working hours ⢠Billable and unbilled hours at a glance INVOICES AND REPORTS ⢠Invoices tailored to 10 countries, with VAT and mileage ⢠PDF reports and CSV timesheets ⢠Mark entries as invoiced or reported CALENDAR AND REMINDERS ⢠Two-way sync of a project with its own calendar and Reminders list ⢠Meetings from your work calendar come in as to-dos ā and your hours can go to it ⢠Import events from any calendar ON ALL YOUR DEVICES ⢠iPhone, iPad and Apple Watch, synced through iCloud in seconds ⢠Widgets, Live Activity and watch complications ⢠Available in 10 languages HOURBOOK PRO ā SUBSCRIPTION REQUIRED All features require an active Hourbook Pro subscription. Choose a monthly or a yearly plan; new subscribers get a free trial. Prices are shown in the app before you subscribe. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your Apple Account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Privacy Policy: https://t2c7hjkhyk-eng.github.io/hourbook-privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Hourbook at every 4 days against Time to Invoice's every 10 months. Hourbook also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Time to Invoice sells 1 one-off in-app purchase and Hourbook sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Time to Invoice ships an update every 10 months, Hourbook every 4 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Time to Invoice | Hourbook |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 4 days ā better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch ā better |
| Requires iOS | 26.0 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Apptown Studio AB | EERO OSSINPOIKA JUNKKARI |
In-app purchases
Time to Invoice
- Premium$49.99
Hourbook
- Hourbook Pro1 Month trial$1.991 Month
- Hourbook Pro1 Month trial$17.991 Year







