BuildBook vs Hammr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Unlimited projects
- Lightning-fast scheduling (Gantt charts)
- Team and client chat
- Budget management
- Change order tracking
- Client dashboard
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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.
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.
- Automated reminders
- Offline functionality
- Geofencing for clock-ins
- Real-time crew hour management
- Payroll and job cost reporting
- Timesheet export
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
BuildBook ships an update every 2 weeks, Hammr weekly. The most recent releases landed on September 12, 2026 and September 14, 2026 respectively.
| Parameter | BuildBook | Hammr |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (16 ratings) — better | 3.3 (7 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 16 — better | 7 |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 34 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | BuildBook Inc. | Hammr Inc. |
Customer experience
BuildBook
Hammr
In-app purchases
BuildBook
No in-app purchases
Hammr
No in-app purchases









