Screen Time Tracker vs Periodic Table & Element Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Screen Time Tracker
This app helps you reduce unproductive screen time by blocking distracting apps and websites. It provides visual charts of your usage and allows you to filter out essential productive applications. Keep your data private and track your progress over time.
- Block unproductive apps and websites
- Filter productive apps
- Visualize screen time with charts
- Track usage progress
- See app time consumption
- Private data storage
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Your new screen time companion to stop using unproductive apps and block distracting websites. Completely free with no ads or in-app purchases. KEY FEATURES Some apps are productive! Filter them out to help you decrease your unproductive screen time. Apple’s default app blocker is too easy to override! Choose apps and websites to block completely. Visualise your screen time on beautiful, interactive charts. Review your screen time usage progress over last four weeks. See exactly which apps consume your time. All your screen time data is kept completely private and only visible to you - not even the developer. PERFECT FOR STUDENTS - Allow productive study apps and block entertainment and social media PROFESSIONALS - track your work vs personal device usage ANYONE who wants to decrease the amount of time they spend on their device.
Periodic Table & Element Guide
An interactive and offline reference for all 118 chemical elements. Explore detailed information, search, and filter elements with a clean, accessible design. Ideal for students, teachers, and chemistry enthusiasts.
- Interactive periodic table
- Detailed element information
- Offline functionality
- Search and filter elements
- Dark mode support
- Save favorite elements
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Periodic Table is a beautifully designed and easy to use reference app for chemistry students, teachers, and curious minds. Explore all 118 chemical elements in a clean interactive table that works perfectly on iPhone and iPad. Tap any element to instantly see clear and useful information including its symbol, atomic number, category, period, and group. Everything is available offline with no ads and no clutter, just a fast and elegant way to explore chemistry. Features Browse the complete periodic table Tap any element for detailed information Clean modern design optimised for all screen sizes Works fully offline Dark mode support Search elements by name symbol or atomic number Filter by category period or group Save favourite elements for quick access Designed with accessibility in mind Perfect for students revising chemistry, teachers in the classroom, or anyone who wants a simple and reliable periodic table on their device. Subscription Information Some features require a subscription. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription will automatically renew unless auto renewal is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your App Store account settings. Terms of Service: https://reggielabs.com/terms-of-service Privacy Policy: https://reggielabs.com/privacy-policy
Screenshots
Verdict
The clearest difference is rating: Periodic Table & Element Guide at 5.0 against Screen Time Tracker's 3.9. Periodic Table & Element Guide also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (17 vs 26.0). Screen Time Tracker's advantage is in-app purchases (none vs 2) and ratings volume (154 vs 1). On price, ads 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. Periodic Table & Element Guide sells 2 in-app purchases, starting at $3.99 per 7 days. Screen Time Tracker asks for nothing beyond the download.
Periodic Table & Element Guide holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Screen Time Tracker has 154 ratings behind it against 1, so its average is the more settled of the two.
Screen Time Tracker ships an update every 5 months, Periodic Table & Element Guide every 3 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | Screen Time Tracker | Periodic Table & Element Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (154 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 154 — better | 1 |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17 — better |
| Further details — not scored | ||
| Size | 2 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Jack Finnis | Courtney Rawlings |
In-app purchases
Screen Time Tracker
No in-app purchases
Periodic Table & Element Guide
- Periodic Pro Weekly$3.997 Days
- Periodic Pro Lifetime$29.99
Questions
Is Screen Time Tracker free?
Is Periodic Table & Element Guide free?
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Which is updated more often, Screen Time Tracker or Periodic Table & Element Guide?
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