Hmbox vs Powerhold
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hmbox
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The hmbox is a digital measuring instrument based on the hygrometric measuring methode to determine the moisture of different building materials. Measurements are user-friendly and non-destructively by one-time mounting the hmbox on the surface. The hmbox collects and transmits all data via 2G mobile network to a central server.
Powerhold
This app helps flooring installers and contractors select the correct Powerhold adhesives, trowels, and other installation supplies. It provides quick access to essential tools like a trowel guide, dry/cure times, and technical data sheets, even on the jobsite.
- Flooring adhesive selection
- Trowel guide
- Dry/Cure time calculator
- TDS/MSDS sheet access
- Jobsite data access
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Flooring installers and professional contractors: use this simple app to find the right Powerhold flooring adhesives, trowels, additives, and solvents for residential and commercial flooring installations, no matter what flooring, substrate, and RH you're working with. Trowel guide, Dry/Cure time, TDS/MSDS sheets , and more now available at your fingertips, even while out on the jobsite. Powerhold is the professional flooring installer's choice for professional grade installation supplies. Established in 1999 by a group of the largest floor covering supplies distributors in the world, the Floor Covering Distributor Alliance, has built the Powerhold brand on quality, reputation and proven results.
Screenshots
Verdict
The clearest difference is update cadence: Powerhold at fortnightly against Hmbox's every 2 months. On price, ads, in-app purchases and device support 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.
Hmbox ships an update every 2 months, Powerhold fortnightly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.
| Parameter | Hmbox | Powerhold |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 15 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | FP Floor Protector GmbH | JAST Media LLC |
In-app purchases
Hmbox
No in-app purchases
Powerhold
No in-app purchases
