Fidbox vs ADD Volunteer App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fidbox
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Get the new fidbox® app NOW! You probably know that hardwood floors are very sensitive. But do you know if your rooms are too hot/cold so it damages your floors? Do you know if the humidity in your rooms is too high/low? Here's the solution for your mobile phone: the new fidbox® app. Connected to your fidbox® you are able to read out the temperature and humidity the fidbox® has measured and take instant action to prevent your dearly bought floors from getting damaged. ----------------------------------------------- What is the fidbox? The fidbox® is a monitor for temperature (°C) and relative humidity (%) as well as a data log for long-term data recording all in one, which is concealed in the hardwood flooring itself. The data stored therein can be read at any time by wireless transmission and allows the determination of the degree of moisture in the screed and in the hardwood flooring by vertical measurements. This information is not only pertaining to the indoor environment, but is especially important in the event of damage as it provides understandable facts.
ADD Volunteer App
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The 'ADD Volunteer App' app accompanies participants to fill Diary Card, Capture Selfies and Videos
Screenshots
Verdict
The clearest difference is update cadence: ADD Volunteer App at every 2 months against Fidbox's every 4 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.
Fidbox ships an update every 4 months, ADD Volunteer App every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Fidbox | ADD Volunteer App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 123 MB |
| Age rating | 4+ | 12+ |
| Developer | FP Floor Protector GmbH | Tata Consultancy Services |
In-app purchases
Fidbox
No in-app purchases
ADD Volunteer App
No in-app purchases









