TAJO

Legal document

Privacy · Tajo

Privacy policy

Last updated: 10 October 2026 (version 2)Reading time: 8 min

Contents · 9 sections

Tajo is an app for time tracking, work reports and staff management for construction companies. It is developed and provided by PlisPlas (enunplisplas.com). This policy explains what data the app processes, for what purpose, who sees it and what you can do about it.

Who processes your data

Tajo is not used on your own: you get into it because your company has registered you with an invitation code. That is why there are two different roles:

For any question about the app or this policy you can write to info@enunplisplas.com. If what you ask us is to exercise a right over your data, we will pass it on to your company and help it respond.

Demo accounts. If you sign in with a demo code (used by testers and app store reviewers), you enter a fictitious company. There, the controller of your name and email is PlisPlas, solely to let you try the app; ask for deletion whenever you want.

What data is collected and why

Your account

You sign in with your Google account. From it Tajo receives your name, your email and a user identifier; it does not receive your password.

Your working day

When you clock in, clock out or take a break, the exact moment you did it is saved, measured by the server's clock, together with the time shown on your phone (to detect clocks that are off), the device model and the app version (to investigate bugs).

This is not optional, either for your company or for you: article 34.9 of the Estatuto de los Trabajadores (Spanish Workers' Statute) requires a daily record of working hours to be kept. The legal basis is compliance with a legal obligation (art. 6.1.c GDPR), not your consent.

Your location

If your company has it enabled, your position is saved at the moment you clock in or out, and only at that moment, to check that the work is done at the assigned site.

When you yourself start a trip (for example, from one site to another), the app saves points along your route while it lasts —about one every 50 metres— to calculate the kilometres. While it is active you will see a persistent notification saying "Desplazamiento activo" (Trip in progress), and it ends when you close it yourself or when you clock out.

What this is not:

The legal basis is your company's legitimate interest in verifying the work performed (art. 6.1.f GDPR), within the limits of art. 20.3 of the Estatuto de los Trabajadores.

Your personal and employment data

To manage your employment relationship (legal basis: the performance of your employment contract, art. 6.1.b GDPR, and your company's employment and Social Security obligations, art. 6.1.c): first name and surnames, job title, site or workplace, manager, contact phone and email, contracted hours, absences and holidays. When your company needs them for payroll or Social Security: DNI or NIE (Spanish ID or foreigner ID number), Social Security number and bank account.

The latter are stored separately from the rest of your record and can only be seen by you and whoever handles Human Resources at your company. Your colleagues see your name and job title; never your DNI or your bank account.

Work reports, photos and videos

What you write in the daily report, and the photos and videos you attach to a report, an incident or a purchase receipt, are uploaded to Tajo's servers so that your company can see them. The legal basis is the performance of your contract and your company's legitimate interest in monitoring the work done on its sites (art. 6.1.b and 6.1.f GDPR). The app only accesses the camera or your photos when you choose to attach something.

Voice dictation

If you use the microphone to dictate the report, the audio is converted into text by your phone's speech recognition service (Google on Android, Apple on iPhone), which depending on the model may process it on the phone itself or on its servers. Tajo does not store or send the audio: it only receives the text, which you can review before saving it.

Documents, occupational risk prevention and vehicles

Notifications and crashes

To send you alerts (for example, that your holiday has been approved) a notification identifier for your device is stored. If the app closes because of an error, a technical crash report is sent (Firebase Crashlytics) without the content of your reports or your location. The legal basis is the legitimate interest in the app working properly (art. 6.1.f GDPR).

Automated decisions

Tajo does not make decisions that affect you automatically (art. 22 GDPR). When it flags something —a clock-in far from the site, a report that does not add up—, it is always reviewed by a person at your company.

What is NOT collected

Who can see your data

WhoWhat they see
YouEverything about you, including your full working-hours record
Your supervisor or site managerClock-ins, reports and absences of their team. They do not see sensitive data
Your company's Human ResourcesThe employment data of the workforce, including sensitive data
Your company's administrationAll of the above plus the configuration and the access log
PlisPlasOnly what is strictly necessary to provide technical support and fix bugs, when your company asks for it

No colleague without responsibility over you can see your clock-ins.

Third parties

The data is hosted on Google Cloud (Firebase), in data centres located in Madrid, Spain. Google acts as a sub-processor and does not access the data except to provide the service.

Some Google technical services used by the app —Google sign-in, notification delivery and crash reports (Firebase Crashlytics)— may process technical data outside the European Economic Area. Google does so with the safeguards of the GDPR: the EU-U.S. Data Privacy Framework and the European Commission's standard contractual clauses. Your clock-ins, reports, photos and documents are stored in Madrid.

Data is not sold or transferred to third parties for commercial purposes. Your company may share with its payroll advisers what is needed for payslips; in that case it will have told you in its data protection information.

How long data is kept

The working-hours record is kept for four years, as required by article 21 of the consolidated text of the Ley sobre Infracciones y Sanciones en el Orden Social (Spanish Act on Labour and Social Security Offences and Penalties). Trip routes are kept for the same time as the clock-in they belong to. The rest of your data, for as long as your employment relationship lasts and afterwards for the periods set by law.

Your rights

You have the right of access, rectification, erasure, objection, restriction and portability. Exercise them with your company, or write to us at info@enunplisplas.com and we will pass it on.

If you believe your rights have not been properly handled, you can lodge a complaint with the Agencia Española de Protección de Datos (Spanish Data Protection Agency) (www.aepd.es).

Deleting your account

Also on its own page: tajo.enunplisplas.com/en/delete-account.

From the app: More tab → Settings and account → Delete my account. If you can no longer sign in (you have changed phone or company), write to info@enunplisplas.com from the email you used to sign in and we will delete it within 30 days at most, notifying your company.

You should know exactly what happens, because it is not a full deletion and it would be dishonest to say it is:

Security

Data travels encrypted and access is controlled by role: every operation checks who you are and what you are entitled to see.

The working-hours record is unalterable by design. A clock-in cannot be edited or deleted, not even by an administrator: correcting a mistake means adding a new entry that records who made it, when and why, and the original remains visible. Each entry is cryptographically chained to the previous one, so that any tampering would be detectable. This protects you as much as the company.

Minors

Tajo is a work tool for adults and is not directed at people under 18.

Changes to this policy

If anything relevant changes we will let you know inside the app. The date of the last update appears at the beginning of this document.