Comparison

Time Master + Billing vs Hours Keeper

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

Head to head
About

Time Master + Billing

This app helps professionals track their time and expenses for billing purposes. It offers flexible billing rates, powerful rounding options, and detailed reporting. It's designed for consultants, attorneys, and contractors who need to manage their billable hours and costs efficiently.

Highlights
  • Track time by start/stop or duration
  • Multiple running timers
  • Client, Project, and Task categorization
  • Flexible billing rates
  • Time rounding options
  • Expense tracking (mileage, meals, etc.)
  • Exportable reports (HTML/CSV)
Features
Currently charting
Read full description

The best, most powerful, comprehensive, easy to use time keeping app on the Apple Store is now even better. Our biggest fans are consultants, attorneys and contractors. Time Master is used by individuals working independently, to attorneys from some of the biggest law firms in the USA. If you need to keep track of time and expenses, you can’t find a better app than Time Master. We at On-Core are IT professionals, so we have firsthand experience with billing and keeping track of time. We know from personal experience what is needed and have made this app so flexible, it works for virtually anyone in any industry in which time needs to be kept. Features: - Track time by start, stop and/or by duration - Sessions option can track "punch-in & out" for a single time entry - Single or multiple running timers - Timers keep running even if you are not running the app - Time Entries are by Client and can be sub-categorized by Project and Tasks - Powerful billing rates that can be defined in the following priority: Global, by Client, by Project, by Task or Custom per entry - Powerful Time Rounding: by hour, minutes and/or seconds - Multiple Filters to sort and view only what you need to see - Define the day of the week that your work week starts - Track Expenses - from Mileage to Meals to Burning CD's and anything else you want to define - Display Reports right on your device that you can view and export via email in HTML and/or CSV format. By Client or Timesheet - Copy Client information from your Contacts list - Dual taxes for countries such as Canada - Full Backup & Restore capabilities - and so much more! NEW! "Time Master Client" companion app. How it works: the account owner sets up Clients, Projects, and Tasks in Time Master + Billing and pushes them to team members/subcontractors on Time Master Client. Those team members track time and expenses (and can optionally generate invoices) from the field, and it all syncs back to the main app for consolidated billing. Subscription-based. OPTIONAL MODULES (one-time additional fee required as an "In App Purchase"): - Invoicing: If you want to do billing directly from your iPhone or iPod Touch then look no further. The most powerful invoicing module built directly into Time Master. Professional PDF invoices can be emailed to the client, including your own logo. - Synchronization: Wirelessly synchronize two or more devices. If you have an iPad and an iPhone and want to keep the data synchronized between the two devices, this is for you! Time Master can track both time and expenses. You can track time using start and stop times, duration, and/or timers. All time entries are tracked for a single day, so time entries cannot be greater than 24 hours. It will allow you to time across days, for example if you start a job at 8 p.m. and finish at 2 a.m., it will have a duration of 6 hours. Expenses can be setup for recurring fixed cost items, such as burning a CD, reimbursement of hardware items, or fluid things such as toll expenses, automobile mileage, etc. Quick reporting can be done on the iPhone / iPad with the Reports function. The report can be emailed in an HTML and/or CSV format. Adding new Clients, Projects, Tasks and Expenditures is super easy.  You can create them on the fly without having to navigate to a separate maintenance screen. To edit them you can tap on Setup, do you edit and then return to where you left off in Time Entries or Expenses. By selecting a Project or Task first will automatically fill in the Client field for quick entry. We’ve made everything as seamless as possible, as you would expect from a top class iOS application. Please click on the "On-Core website" link below to download the documentation on your computer. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Hours Keeper

Easily track your work hours, calculate earnings, and generate professional PDF invoices for clients. Manage billings and payments efficiently with this intuitive time tracking tool.

Highlights
  • Real-time hours/earning tracking
  • Weekly and monthly timesheets
  • PDF invoice generation
  • Billing and payment tracking
  • Configurable overtime and breaks
  • Data export and sync
Features
Read full description

Hours Keeper is a well-designed application that you can use to easily track your hours worked and calculate your earnings. Hours Keeper allows to record your daily working hours for each client, including your overtime and break time. After earnings been calculated, you can generate PDF invoices to sent to your clients and track all the billings and the payments. Designed and developed by polycents! “Easy to use and simple. It’s very useful and is definitely worth every penny. Great customer service from developers!” “Very well executed app, nice clean interface with tones of useful features.” “A great app for those of us that do business on the go. It is packed full of great features that really help out. Great job.” Our Hours Keeper is one of the best tools to track down all the hours you have worked. Once you use the app you will want nothing else to make your hours and earnings tracking easier. KEY FEATURES - Well designed, easy to use, intuitive interface. - Realtime hours/earning tracking for multiple clients. - Weekly and monthly timesheet. - PDF invoices to send to customers. - Earnings reports. - Calendar to map your daily earning for each month. - Billing and payment tracking. - Configurable overtime and break time for time tracking. - Export data as CSV. - Sync data between all your devices. - Passcode protection. # Subscription Details # - Monthly and annual subscriptions are available. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. - Automatic renewals will be charged at the same price you were originally charged for the subscription. - Subscriptions can be managed by going to Account Settings on the App Store after purchase. Terms of Use: https://www.iubenda.com/terms-and-conditions/10725628 Privacy Policy: https://www.iubenda.com/privacy-policy/10725628 Please write to us before leaving negative reviews, as we can often help with your problem or help you better use the app. If you have any problems or suggestions please send an mail to hourskeeper@support.polycents.com, and you will get the response with solutions in a short time.

Screenshots

Time Master + Billing4 screens
Hours Keeper4 screens

Verdict

The call

The clearest difference is price: Hours Keeper at Free against Time Master + Billing's $9.99. Hours Keeper also leads on ratings volume (1.4K vs 59). Time Master + Billing's advantage is rating (4.7 vs 4.1) and ads (none vs shown). On in-app purchases, device support and iOS requirement 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

Hours Keeper is free to download; Time Master + Billing costs $9.99 up front. Time Master + Billing sells 5 in-app purchases, starting at $4.99 per month and Hours Keeper sells 9 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Time Master + Billing holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Hours Keeper has 1.4K ratings behind it against 59, so its average is the more settled of the two. Written reviews point the same way: 84% of Time Master + Billing's written reviews are positive against 57% of Hours Keeper's.

UpkeepUpdate frequency

Time Master + Billing ships an update every 2 weeks, Hours Keeper monthly. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

Scorecard8 real differences · 3 level
Time Master + Billing versus Hours Keeper: the parameters behind the verdict, then further details
ParameterTime Master + BillingHours Keeper
Price$9.99Free — better
Rating4.7 (59 ratings) — better4.1 (1.4K ratings)
Positive reviews84.2% of reviews — better57.2% of reviews
Number of ratings591.4K — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
Best chart rank#41 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size57 MB72 MB
Age rating4+4+
DeveloperOn-Core Software LLCBeesoft Apps

Customer experience

Time Master + Billing

All ratings59 ratings
Positive89.8%
Neutral8.5%
Negative1.7%
Written reviews183 reviews
Positive84.2%
Neutral4.9%
Negative10.9%

Hours Keeper

All ratings1,405 ratings
Positive77.4%
Neutral5.8%
Negative16.8%
Written reviews552 reviews
Positive57.2%
Neutral7.8%
Negative35.0%

User reviews

Time Master + Billing

From 59 App Store ratings

What we love

  • 💻 Excellent time tracking and billing app
  • 🔍 Highly customizable and flexible
  • ⚡ Efficient and saves time
  • 💼 Great for consultants and small businesses
  • 📊 Detailed reporting and invoicing

Room to improve

  • 🐛 Occasional crashes and bugs
  • 🕰️ Steep learning curve for some users
  • 💰 Expensive for basic time tracking needs
  • 📱 Limited mobile-only functionality
  • 🔍 Confusing or unintuitive interface in places

Hours Keeper

From 1.4K App Store ratings

What we love

  • 💻 Easy to use
  • ⏱️ Helpful for tracking hours
  • 📋 Great for invoicing
  • 📊 Useful reporting features

Room to improve

  • 🐛 Glitchy after recent updates
  • ⏳ Slow performance and lags
  • 🔄 Data loss and sync issues
  • 🚫 Poor customer support

Bugs and requests

Time Master + Billing

Reported bugs

3 issues
  • Crashes on iOS 18.7.2
  • Issues with email and client communication features
  • Problems with landscape mode and UI elements

Requested features

5 requests
  • Desktop or web-based version
  • Improved expense tracking and management
  • Ability to split time entries across multiple clients/projects
  • Enhanced calendar and scheduling integration
  • Automatic mileage tracking and reporting

Hours Keeper

Reported bugs

3 issues
  • App crashes on launch
  • Unable to log in or restore data
  • Incorrect time and billing calculations

Requested features

4 requests
  • Customizable invoice templates
  • Ability to add notes to entries
  • Automatic overtime calculations
  • Integration with accounting software

In-app purchases

5 purchases

Time Master + Billing

Subscriptions2
  • Time Master Client Monthly$4.991 Month
  • Time Master Client Yearly$49.991 Year
One-time3
  • Quickbooks ExportFree
  • Synchronization Module$6.99
  • Invoicing Upgrade$9.99
9 purchases

Hours Keeper

Subscriptions5
  • Premium - 1 Month$1.991 Month
  • Premium - 3 Months$6.993 Months
  • Premium - 1 Year7 Days trial$13.991 Year
Show 2 more
  • Premium - 1 Year7 Days trial$15.991 Year
  • Premium - 1 Year7 Days trial$19.991 Year
One-time4
  • Upgrade to Premium$23.99
  • Upgrade to Premium$26.99
  • Upgrade to Hours Keeper Pro$29.99
Show 1 more
  • Upgrade to Premium$39.99

Questions

Is Time Master + Billing free?
Time Master + Billing costs $9.99, and also offers in-app purchases.
Is Hours Keeper free?
Hours Keeper is free to download, with in-app purchases available.
Which has better reviews, Time Master + Billing or Hours Keeper?
Time Master + Billing is rated higher. Time Master + Billing averages 4.7 out of 5 from 59 ratings, while Hours Keeper averages 4.1 from 1.4K ratings.
Do Time Master + Billing or Hours Keeper have ads?
Hours Keeper shows ads; Time Master + Billing does not.
Which is updated more often, Time Master + Billing or Hours Keeper?
Time Master + Billing ships an update every 2 weeks, and Hours Keeper monthly. Most recently, Time Master + Billing was updated on September 24, 2026 and Hours Keeper on September 25, 2026.

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