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Rangka
Turn site messages and voice notes into valuable records.
Rangka turns scattered construction site messages and voice notes into clear, useful project information. It organizes everyday updates into structured records, progress reports, issues, decisions, and action items—helping teams spend less time searching chats or preparing reports manually. Site teams can communicate as usual, while project managers gain better visibility, faster follow-up, and reliable records of what happened on-site.
I’m Vimlan, a director of a heavy-fabrication contractor in Malaysia. For years, I watched the same problem repeat across projects: the site moves fast, important updates disappear inside Telegram and WhatsApp groups, and every evening someone rebuilds the daily report by scrolling through chat. Meanwhile, the Gantt chart quietly stops matching reality.
Rangka is my answer—built from inside the industry:
1. Supervisors report through Telegram, with no new field app to learn 2. Messages, photos and voice notes become an organised, evidence-linked site record 3. AI prepares the daily report, but a project manager must review and approve it 4. The project schedule is simple enough for the team to keep current 5. Schedule updates remain connected to the field evidence behind them—important when building extension-of-time and delay records
The principle is simple: AI prepares. The PM approves.
Rangka is built for contractors and priced per active project, not per seat, because site headcount changes from week to week.
We’ve also released a completely free Gantt maker and construction schedule template library. Neither requires an account, and I’d genuinely appreciate your feedback on them too.
Ask me anything about construction technology, building for non-desk teams, or why I chose Telegram instead of creating another dedicated field app.
Thanks for checking out Rangka!
About Rangka on Product Hunt
“Turn site messages and voice notes into valuable records.”
Rangka was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #150 on the daily leaderboard. Rangka turns scattered construction site messages and voice notes into clear, useful project information. It organizes everyday updates into structured records, progress reports, issues, decisions, and action items—helping teams spend less time searching chats or preparing reports manually. Site teams can communicate as usual, while project managers gain better visibility, faster follow-up, and reliable records of what happened on-site.
On the analytics side, Rangka competes within Productivity, SaaS and Artificial Intelligence — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Rangka performed against the three products that launched closest to it on the same day.
Who hunted Rangka?
Rangka was hunted by Vimlan Ganesan . A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Rangka including community comment highlights and product details, visit the product overview.
Vimlan Ganesan 
Hi Product Hunt! 👋
I’m Vimlan, a director of a heavy-fabrication contractor in Malaysia. For years, I watched the same problem repeat across projects: the site moves fast, important updates disappear inside Telegram and WhatsApp groups, and every evening someone rebuilds the daily report by scrolling through chat. Meanwhile, the Gantt chart quietly stops matching reality.
Rangka is my answer—built from inside the industry:
1. Supervisors report through Telegram, with no new field app to learn
2. Messages, photos and voice notes become an organised, evidence-linked site record
3. AI prepares the daily report, but a project manager must review and approve it
4. The project schedule is simple enough for the team to keep current
5. Schedule updates remain connected to the field evidence behind them—important when building extension-of-time and delay records
The principle is simple: AI prepares. The PM approves.
Rangka is built for contractors and priced per active project, not per seat, because site headcount changes from week to week.
We’ve also released a completely free Gantt maker and construction schedule template library. Neither requires an account, and I’d genuinely appreciate your feedback on them too.
Ask me anything about construction technology, building for non-desk teams, or why I chose Telegram instead of creating another dedicated field app.
Thanks for checking out Rangka!