Comparison

BuildBook vs Hammr

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

Head to head
About

BuildBook

This app streamlines residential construction projects for builders, remodelers, and designers. It offers features like project management, scheduling with Gantt charts, team communication, budgeting, and a client dashboard to enhance client satisfaction.

Highlights
  • Unlimited projects
  • Lightning-fast scheduling (Gantt charts)
  • Team and client chat
  • Budget management
  • Change order tracking
  • Client dashboard
Read full description

BuildBook helps home builders, remodelers, and interior designers keep residential construction projects on track and delight their clients. Unlimited projects, lightning-fast scheduling (with Gantt charts), team and client chat, budget, change orders, plus a sleek, beautiful client dashboard that puts your brand front and center. And much, much more.

About

Hammr

This mobile application simplifies time tracking for construction professionals. It offers automated reminders, offline functionality, and geofencing to ensure accurate clock-ins. Foremen can manage crew hours in real-time, generating detailed reports for payroll and job costing.

Highlights
  • Automated reminders
  • Offline functionality
  • Geofencing for clock-ins
  • Real-time crew hour management
  • Payroll and job cost reporting
  • Timesheet export
Features
Read full description

Time tracking built for Construction! We come from construction. And that's who we built this for. - Simple mobile app - Automated reminders - Supports English and Spanish - Works offline in bad service areas - Create geofences to help employees clock in on the right project - Set reminders to avoid early clock-ins and late clock-outs - Foremen can easily track and manage crew's hours in real-time - Accurate timesheets eliminates guesswork and arguments - Only pay for hours spent on the job working - Calculate hours and wages for accurate payroll, including breaks and overtime - Easily export timesheets to your payroll software - Detailed job cost reports at your fingertips - Track your costs by hours, jobs and cost codes - Easily export for payroll, accounting, workers comp and more Everyone's job gets easier! Built with both field and office in mind. - Owners get real-time visibility and confidence in every project - Office admin spend less time hunting down time cards from field - Foremen spend more time keeping crews busy and less time remembering who, where, and what time - Fieldworkers spend more time working and less time remembering hours

Screenshots

BuildBook3 screens
Hammr4 screens

Verdict

The call

The clearest difference is rating: BuildBook at 4.1 against Hammr's 3.3. BuildBook also leads on iOS requirement (14.0 vs 16.0). On price, ratings volume, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BuildBook holds the better App Store score, 4.1 against 3.3. Both are backed by a comparable volume of ratings — 16 and 7 respectively.

UpkeepUpdate frequency

BuildBook ships an update every 2 weeks, Hammr weekly. The most recent releases landed on September 12, 2026 and September 14, 2026 respectively.

Scorecard2 real differences · 8 level
BuildBook versus Hammr: the parameters behind the verdict, then further details
ParameterBuildBookHammr
PriceFreeFree
Rating4.1 (16 ratings) — better3.3 (7 ratings)
Positive reviews0.0% of reviews—
Number of ratings16 — better7
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size34 MB54 MB
Age rating4+4+
DeveloperBuildBook Inc.Hammr Inc.

Customer experience

BuildBook

All ratings16 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Hammr

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%

In-app purchases

None

BuildBook

No in-app purchases

None

Hammr

No in-app purchases

Questions

Is BuildBook free?
BuildBook is free to download, with no in-app purchases.
Is Hammr free?
Hammr is free to download, with no in-app purchases.
Which has better reviews, BuildBook or Hammr?
BuildBook is rated higher. BuildBook averages 4.1 out of 5 from 16 ratings, while Hammr averages 3.3 from 7 ratings.
Do BuildBook or Hammr have ads?
Neither BuildBook nor Hammr shows ads.
Which is updated more often, BuildBook or Hammr?
BuildBook ships an update every 2 weeks, and Hammr weekly. Most recently, BuildBook was updated on September 12, 2026 and Hammr on September 14, 2026.

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