Deadline Guardian
Never miss a deadline
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Deadline Guardian is your hub for everything that recurs in life – inspections, services, insurance, vaccinations, contracts.
Create a device (car, home, pet), add a deadline, and the app warns you in advance – up to 30 days ahead on legal templates. You set the lead time per item, even on the due date itself. After completing it, log the supplier, cost and a photo of the receipt – the app calculates the next due date.
WHAT DEADLINE GUARDIAN TRACKS
• Vehicle – periodic inspection, mandatory liability insurance, tire swap, oil, brake fluid, timing belt
• Home – boiler, lightning protection, fire extinguishers, elevator, septic / wastewater, solar PV, AC, heat pump
• Documents – passport, driving licence, tax return, road toll, insurance policies
• Health – preventive checkups, vaccinations, mammography, dentist
• Family – birthdays, anniversaries, child vaccinations, growth log
• Pets – vaccines, deworming, flea/tick, vet visits, microchip
• Pool – pH, alkalinity, shock chlorination, winterizing, sand replacement
• Garden – fertilizing, pruning, watering, mulching
WHY DEADLINE GUARDIAN
– 100+ universal templates plus country packs for Czechia, Slovakia, Germany, Austria and Switzerland
– Reminders with enough lead time – up to 30 days ahead on legal templates, and you set it per item
– Sync across devices (phone ↔ tablet ↔ web) with email sign-in
– Cost + supplier per completion – see your annual cost of running a house or car
– Correct legal intervals per country – HU/"TÜV", Pickerl, MFK, STK, chimney sweep, vignettes; country picker in Settings
– No ads, no tracking – telemetry is anonymous and toggleable
– Free at launch – no subscription needed for normal use
TYPICAL USE
"I missed my STK because I didn't note the date" – never again. The app reminds you well ahead, and you decide how early.
"When did we last inspect the lightning rod?" – history per item. Photo of the protocol, invoice, service company name.
"How much does my car cost per year?" – monthly / yearly costs grouped by device.
"My calendar is full of deadlines" – all of them in one app, push notifications at the right time.
PRIVACY (GDPR)
The app does NOT collect your precise location, contacts, financial or health data. Telemetry is anonymous and can be turned off any time. Data is hosted in the EU on Supabase. Account deletion is one tap in Settings – immediate erasure including backups within 30 days.
TECHNOLOGY
• React Native + Expo SDK 54 – native app and web version
• Supabase (EU) – authentication, sync, storage
• PostHog (EU) – anonymous analytics, opt-out in Settings
• Resend – transactional email (sign-in codes)
• No advertising SDKs
ASTRATECH S.R.O.
Built by Astratech s.r.o. (Czechia). Our data, EU hosting, our support. No big tech, no reselling of your data.
Web: https://deadlineguardian.app
Contact: support@deadlineguardian.app
FEEDBACK
The app is in active development. Missing something? Email support@deadlineguardian.app – we reply within 7 days, often the same day.
Terms of Use: https://deadlineguardian.app/terms-en
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fix for the first-run setup.
• You could pick more areas than the free plan can store, so some tracked things never reached your cloud backup. The picker now matches your plan – nothing gets lost.
• Sample data no longer takes up room in your limit.
Thanks for the feedback: support@deadlineguardian.app
The developer, Astratech s.r.o., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Astratech s.r.o.
- Size
- 50.1 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 3 more
- English, Czech, German, Slovak
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro – lifetime $44.99
- Deadline Guardian Pro $1.99
- Deadline Guardian Pro $12.99
- Copyright
- © 2026 Astratech s.r.o.