Comparison

Phobias Guide.. vs Time Dilation Explorer Lab

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Phobias Guide..

Features
Read full description

Learn about phobias, fears, and anxiety-related responses. Phobias Guide helps you explore different types of phobias and understand how fears influence human behavior. Discover information about common and rare phobias, including their symptoms, possible causes, and general treatment approaches. The app provides structured information designed for students, psychology learners, and anyone interested in understanding fears and anxiety disorders. Phobia Profiles • Explore many different phobias • Learn scientific names and classifications • Understand how fears are categorized • Discover common triggers and reactions Symptoms and Triggers • Learn typical symptoms of phobias • Understand emotional and physical reactions • Explore situations that may trigger fears Causes and Risk Factors • Learn possible causes of phobias • Understand psychological and environmental factors • Explore how fears may develop over time Treatment and Support • Overview of common treatment approaches • Learn about therapy and coping strategies • Understand management options for anxiety and fear Learning Tools • Educational facts about phobias • Quiz mode to test your knowledge • Structured explanations designed for easier learning Search and Discovery • Search phobias quickly • Browse topics through organized categories • Explore different types of fears Favorites • Save phobias for quick reference • Review important topics anytime Designed for Easy Learning • Clean and simple interface • Organized psychology information • Easy navigation between topics Premium Features Upgrade for additional benefits: • Offline access to phobia information • Ad-free experience • Enhanced reading convenience Privacy Focused • No unnecessary permissions • No personal data collection • Information remains on your device Who This App Is For • Students studying psychology • Mental health learners • Researchers and educators • Anyone interested in fears and phobias Phobias Guide helps you explore phobias, understand fear responses, and learn about psychological aspects of anxiety. Download Phobias Guide to explore different types of fears. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Time Dilation Explorer Lab

Features
Read full description

Time Dilation Explorer Lab turns special relativity into an interactive space-science lab. Slide toward the speed of light and watch time change in real time. Compare Earth time with traveler time, explore the light-clock thought experiment, send a virtual ship toward nearby stars, and learn why Einstein's ideas matter in real science and technology. Designed for curious learners, students, teachers, and space fans, the app explains time dilation, length contraction, the twin paradox, light speed, GPS corrections, and near-light-speed travel through visual simulations and short lessons. Key features: - Interactive time dilation simulator with Earth and traveler clocks - Speed vs Time graph for comparing journeys across cosmic distances - Light Clock demo showing why moving clocks tick slower - Twin Paradox visualization with Earth twin and traveler twin timelines - Length Contraction lab for seeing fast-moving objects shrink along motion - Cosmic Journey mode with destinations from the Moon to Andromeda - Bite-sized relativity lessons with examples, takeaways, and fun facts - Quiz mode with categories, best scores, streaks, and hints - Progress dashboard with lesson completion, quiz progress, and badges - Daily relativity facts and achievement rewards The free version includes core simulations, starter lessons, quizzes, and selected destinations. A one-time Premium unlock removes ads and opens advanced lessons, full-speed controls, expanded quiz content, extra destinations, and additional interactive tools. Whether you are reviewing physics for school, introducing relativity in a classroom, or simply wondering what a near-light-speed journey would feel like, Time Dilation Explorer Lab helps make spacetime visible.

Screenshots

Phobias Guide..4 screens
Time Dilation Explorer Lab4 screens

Verdict

The call

The clearest difference is iOS requirement: Phobias Guide.. at 13.0 against Time Dilation Explorer Lab's 26.2. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Phobias Guide.. sells 2 in-app purchases, starting at $1.99 per month and Time Dilation Explorer Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
Phobias Guide.. versus Time Dilation Explorer Lab: the parameters behind the verdict, then further details
ParameterPhobias Guide..Time Dilation Explorer Lab
PriceFreeFree
Update frequencyEvery 2 weeks—
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.2
Further details — not scored
Size156 MB16 MB
Age rating4+4+
DeveloperOlga IvanovaChatStick Company Limited

In-app purchases

2 purchases

Phobias Guide..

Subscriptions1
  • phobias_by_oliva_subscription$1.991 Month
One-time1
  • phobias_by_oliva_donation$1.99
1 purchases

Time Dilation Explorer Lab

One-time1
  • Unlock All Features$2.99

Questions

Is Phobias Guide.. free?
Phobias Guide.. is free to download, with in-app purchases available.
Is Time Dilation Explorer Lab free?
Time Dilation Explorer Lab is free to download, with in-app purchases available.
Do Phobias Guide.. or Time Dilation Explorer Lab have ads?
Both Phobias Guide.. and Time Dilation Explorer Lab show ads.

Other comparisons