Comparison

Ask Lyra vs Time Dilation Explorer Lab

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

Head to head
About

Ask Lyra

Features
Read full description

Ask Lyra: The Math Engine From Algebra homework to university-level proofs β€” Lyra is the AI math tutor built for serious students. Most "math AI" apps spit out an answer and call it a day. Lyra is different. She's a dual-engine math tutor: a fast Standard Engine for everyday Algebra, Geometry, and Trigonometry, and a high-rigor Undergrad Engine that switches on automatically when you tackle Calculus, Linear Algebra, or formal proofs. You get the right tool for the right problem, every time. SNAP & STUDY Point your camera at any worksheet, textbook problem, or test review. Lyra reads it, identifies the topic, and walks you through every step β€” no skipped logic, no hand-waving. TWO ENGINES, ONE TUTOR β€’ Standard Engine β€” Lightning-fast help for Algebra 1/2, Geometry, basic stats, and unit conversions. β€’ Undergrad Engine β€” Activates automatically for Limits, Derivatives, Integrals, Linear Algebra, Differential Equations, and "Prove that…" problems. Formal notation, cited theorems, full rigor. LYRA'S VAULT Save every solved assignment and one-on-one lesson to your personal vault, organized by subject β€” AP Calc AB, Statistics, Trigonometry, Algebra, and more. Revisit any solution, or ask Lyra to build you a custom practice lesson modeled on the questions you struggled with. ONE-ON-ONE LESSONS Chat with Lyra for as long as you need. Ask follow-up questions, request a different approach, or have her teach a concept from the ground up. Save any lesson straight to your vault for later review. BUILT FOR HIGH SCHOOL & COLLEGE β€’ Pre-Algebra Β· Algebra 1 & 2 Β· Geometry Β· Trigonometry β€’ Pre-Calculus Β· AP Calculus AB/BC Β· Statistics β€’ Linear Algebra Β· Differential Equations Β· Discrete Math β€’ Formal proofs with LaTeX-rendered notation Apple's End User License Agreement (EULA) applies and is located at 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

Ask Lyra4 screens
Time Dilation Explorer Lab4 screens

Verdict

The call

The clearest difference is ads: Ask Lyra at none against Time Dilation Explorer Lab's shown. Ask Lyra also leads on iOS requirement (18.0 vs 26.2). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Ask Lyra sells 7 in-app purchases, starting at $4.99 per 7 days and Time Dilation Explorer Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences Β· 4 level
Ask Lyra versus Time Dilation Explorer Lab: the parameters behind the verdict, then further details
ParameterAsk LyraTime Dilation Explorer Lab
PriceFreeFree
Update frequencyEvery 3 monthsβ€”
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 β€” better26.2
Further details β€” not scored
Size19 MB16 MB
Age rating4+4+
DeveloperAtkins Media, LLCChatStick Company Limited

In-app purchases

7 purchases

Ask Lyra

Subscriptions4
  • Ask Lyra Weekly Pro3 Days trial$4.997 Days
  • Ask Lyra Monthly Pro3 Days trial$14.991 Month
  • Ask Lyra Semester Pro3 Days trial$34.993 Months
Show 1 more
  • Ask Lyra Annual Pro3 Days trial$79.991 Year
One-time3
  • Spark β€” 5 Fire Ups$4.99
  • Blaze β€” 15 Fire Ups$12.99
  • Inferno β€” 40 Fire Ups$29.99
1 purchases

Time Dilation Explorer Lab

One-time1
  • Unlock All Features$2.99

Questions

Is Ask Lyra free?
Ask Lyra 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 Ask Lyra or Time Dilation Explorer Lab have ads?
Time Dilation Explorer Lab shows ads; Ask Lyra does not.

Other comparisons