Kiri and Lou vs Einstein's Relativity
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Kiri and Lou
Explore a peaceful forest, play hide and seek with charming characters, and collect new creatures and plants. Design your own unique forest environment and capture memories with your favorite characters.
- Play hide and seek
- Create your own forest
- Collect new creatures and plants
- Plant in the real world
- Snap photos with characters
- Two-player mode
Read full descriptionHide full description
Play hide and seek with Kiri and Lou! Create your own beautiful peaceful forest and discover Kiri, a feisty little dinosaur and her best friend Lou, a gentle creature with a long and remarkably sensitive trunk. Play hide and seek in your forest to find new creatures to play with and collect new plants to create with. FEATURES: - Two ways to play - play on your own or with a friend - Plant your very own paper forest in the real world - Hide a character in your forest - See hints as you seek and get 'Warmer' or 'Cooler' - Collect new creatures and plants for your forest as you play - Create your own special forest - Snap photos with your favourite creatures - Beautiful paper art and 3D creatures ABOUT: Hide and Seek with Kiri and Lou features the magical world and creatures of the Kiri and Lou television series. Kiri and Lou and their friends live in a beautiful prehistoric forest. It’s a playful happy world that celebrates kindness. Made with the support from NZ on Air and the Canadian Media Fund. Created by DOTDOT, Stretchy and Yowza Animation. Honorable Mention for Best App for Kids at the Cynopsis Best of the Best Awards! IGRS Rating: 3+
Einstein's Relativity
Read full descriptionHide full description
Step into the world of 'Einstein's Relativity' and embark on a stellar journey to decode the intricacies of the most celebrated theory in science. Features: Interactive Einstein: Journey through relativity with Einstein himself, presented as your animated 3D guide. Let his genius illuminate your path! The Twin Paradox Adventure: Join twins Hans and Eduard on a space odyssey that showcases the mesmerizing effects of time dilation. Eduard's voyage to Alpha Centauri and back will astonish you as you witness the age-defying consequences of near-light-speed travel. Gravitational Time Mastery: Command a lift and observe Gravitational Time Dilation. As the lift ascends and descends, witness the clock's rhythm change in sync with gravity's pull. Rocket's Relativistic Ride: Steer a rocket nearing the speed of light. Discover how velocity affects time, but caution! Surpassing light speed creates a singularity! Experience Length Contraction: As you venture near the speed of light, see objects shorten in their direction of motion. It's Einstein's universe, and you're witnessing its wonders! Einstein's Relativity offers more than just games. It's an enlightening experience where the effects of time dilation and length contraction are brought to life. Whether you're a science enthusiast or just starry-eyed about space, this app promises a cosmic education like no other.
Screenshots
Verdict
The clearest difference is in-app purchases: Kiri and Lou at none against Einstein's Relativity's 2. Kiri and Lou also leads on update cadence (every 5 months vs every 24 months). Einstein's Relativity's advantage is iOS requirement (13.0 vs 15.0). 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. Einstein's Relativity sells 2 one-off in-app purchases. Kiri and Lou asks for nothing beyond the download.
Kiri and Lou ships an update every 5 months, Einstein's Relativity every 24 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | Kiri and Lou | Einstein's Relativity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 months — better | Every 24 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 215 MB | 322 MB |
| Age rating | 4+ | 4+ |
| Developer | Dot Dot Limited | Human Heroes Ltd |
In-app purchases
Kiri and Lou
No in-app purchases
Einstein's Relativity
- The Sensation of Seconds$0.99
- The Cadence Of Clocks$0.99
Questions
Is Kiri and Lou free?
Is Einstein's Relativity free?
Do Kiri and Lou or Einstein's Relativity have ads?
Which is updated more often, Kiri and Lou or Einstein's Relativity?
Other comparisons















