Buildern vs O3 ONField
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Buildern
This app provides a comprehensive suite of tools for construction management, including project planning, budgeting, team communication, and reporting. Its intuitive interface aims to streamline workflows for construction professionals.
- Project management
- Budgeting tools
- Team communication
- Reporting features
- Intuitive interface
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At Buildern, our goal is to deliver the ultimate construction management platform, encompassing project management, budgeting, communication and reporting tools in one easy-to-use, intuitive interface.
O3 ONField
This mobile application extends a capital project management platform to job sites. It supports industry-leading practices and enables key workflows like IWP progressing even in offline or low-connectivity environments.
- Mobile access to capital project management
- Supports AWP, Agile, and Lean practices
- Offline workflow capabilities
- IWP progressing
- Jobsite productivity enhancement
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O3 ONField brings the power of O3’s capital project management platform directly to your mobile device. Built on industry-leading practices like Advanced Work Packaging (AWP), Agile, and Lean, O3 empowers teams to drive performance from planning through startup. Designed for the realities of the jobsite, ONField enables key workflows—such as IWP progressing—even when offline, ensuring productivity in low-connectivity environments.
Screenshots
Verdict
The clearest difference is ratings volume: Buildern at 5 against O3 ONField's 1. On price, rating, 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.
On the App Store both sit at effectively the same score — 5.0 for Buildern against 5.0 for O3 ONField. That said, the two scores are not equally well evidenced: Buildern has 5 ratings behind it against 1, so its average is the more settled of the two.
Buildern ships an update every 2 weeks, O3 ONField fortnightly. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.
| Parameter | Buildern | O3 ONField |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 2 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Buildern Inc | O3 Solutions |
Customer experience
Buildern
O3 ONField
In-app purchases
Buildern
No in-app purchases
O3 ONField
No in-app purchases
