This policy covers public and test versions that provide the described features. The direct Google Drive connection described below applies to versions from 0.7.0 that include it. Check Google Play for the available version; this privacy page does not announce an app release.
Last updated: 10 November 2026
TAS Material Calc is made by Tempo Apps Studio. For privacy questions, contact info@tempoappsstudio.com.
Jobs, projects and photos
The app stores jobs, measurements, material selections, prices, additional supplies, working hours, VAT settings, notes and project links locally on your device. No separate TAS account is required. The app does not upload these records to a Tempo Apps Studio server. It contains no advertisements or proprietary analytics tracking.
You can choose to take photos or select images, for example receipts, quotations or invoices. Only the images you choose are copied into the app's private storage. Copies may retain metadata already present in the source file. The app does not automatically extract amounts from images. Images remain local unless you share or export them yourself, or deliberately create or enable a backup to your own Google Drive as described below. Taking or selecting an image uses your device's camera or document application; any external provider you choose has its own privacy policy.
Purchases, trial and licences
Google Play handles purchases and restoration of full access and any voluntary coffee support. Tempo Apps Studio does not receive payment-card details through this app. The app stores purchase receipts and their signatures locally to verify access rights. Google handles payments and related data under its own terms and privacy policy: https://policies.google.com/privacy.
The integrated Google Play libraries also process purchase status and purchase references, use of purchase features, technical app and device information, error and performance information, and random session references. This information is sent to Google over encrypted connections for payments, purchase restoration, updates, security and analysis of how these services work. Processing can occur when a billing connection is prepared; it does not upload your jobs, prices or photos. Google determines retention periods and controls for this service data under its privacy policy. Tempo Apps Studio does not maintain its own server copy of this technical information.
The app stores the trial start and elapsed usage, a random installation code, and any activated gift, reviewer or tester licences locally. Trial expiry does not delete jobs, projects or photos. Purchase restoration restores app access; it does not recover deleted job records or photos.
Updates and reviews
Google Play handles update checks and optional reviews. A review you submit is processed by Google and may be displayed publicly. The app keeps limited local usage counters so that a review prompt appears only after sufficient use and with an appropriate interval. These counters are not sent to Tempo Apps Studio.
Retention, local backups and deletion
You can delete jobs and attached photos in the app. Deleting a copied attachment does not automatically delete its original in your gallery. Deleting a project removes its links while retaining jobs and photos. Local records remain on your device until you delete them; clearing Android app data or uninstalling the app may erase them.
Manual local export and import and the existing optional daily or weekly backup to a selected shared folder remain available. The app requests access only to the chosen folder or file. An external document or synchronization provider you choose processes files under its own terms. Older versions without the direct Drive connection require a separately configured suitable sync service for cloud upload; installing a cloud app alone is not enough.
Backup archives contain jobs, drafts, projects, actual photo attachments and supported preferences. Archives have no separate app encryption or backup password and may contain original photo metadata. Store and share them carefully. A local copy or internal safety copy alone does not protect against losing your device.
Restore validates the archive and attachments and first creates an internal safety copy. Restore replaces supported app data; purchases, licences, trial status, account tokens and device permissions are not imported as transferable rights. Existing rights are retained. After restoration, deliberately configure storage access and automatic backups again. Backups are recovery copies, not two-way synchronization.
Local or Drive backups and original photos may remain after a job or the app is deleted. Delete these copies separately at their storage location, including any trash or version history managed by your provider. Manage Google purchase records and reviews through your Google account. Tempo Apps Studio cannot delete files in your Google Drive or Google's own service records on your behalf.
Optional backups in your own Google Drive — from version 0.7.0
You choose whether to connect your own Google account and grant permission. If you do not have a suitable account, create and manage it yourself. The other offline app features require neither a Google connection nor a TAS account. You provide internet access and sufficient free Drive storage; unlimited free storage is not promised.
The app uses only Google's limited drive.file permission for files it creates or that you explicitly make available to it. Your Google email address and Drive account identifier are used to display the connected account, authorize requests and verify that recovery uses the intended account. Connection details and the last verified backup status are stored locally. Google processes account authorization and technical service information under its privacy policy; your Google password is not provided to TAS Material Calc. Access tokens are not included in transferable backups.
When you start a Drive backup or enable automatic backups, the app sends the complete backup archive over HTTPS to your own Google Drive. It may contain jobs, measurements, material selections, prices and estimates, additional supplies, working hours, VAT details, projects, drafts, notes, preferences and actual photos of receipts, quotations and invoices. Tempo Apps Studio receives no copy on its own server. The app uses this data for backup and recovery, not advertising, selling data or training AI models.
Automatic Drive backups are off by default. You can save manually without enabling automatic backups, or deliberately choose a daily or weekly schedule. Android, connectivity, permissions and storage affect execution. Only a verified upload is shown as successful; a scheduled task or local file is not evidence of cloud storage.
To recover on a new or replacement phone, install the same app and connect the same Google account. Choose an available app backup, inspect its contents and confirm restoration. The app validates the archive and makes a safety copy before replacing records. Google consent, device permissions and purchase licences are not imported from the archive.
You can turn automatic backups off and disconnect the account. Disconnecting stops the app's cloud tasks, clears the local connection and attempts to revoke the app's Google access. If revocation fails, the app explains this and links to your Google account settings. Existing Drive files are not automatically deleted. Manage these yourself in Google Drive.
Use and transfer of information obtained from Google APIs complies with the Google API Services User Data Policy, including its Limited Use restrictions. Google processes storage under its own privacy and retention policies.
External links and contact
Website, social and contact buttons open an external browser or email app. Tempo Apps Studio receives information you choose to share only when you send a message. Please include only information needed to answer your support request. External websites and services apply their own privacy policies.
Trademarks and external links
External service names and logos belong to their respective owners. Links refer to the studio's profiles and do not imply sponsorship, endorsement or partnership. Rights holders can contact info@tempoappsstudio.com.