TMR Memory Test vs Make Chirps
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TMR Memory Test
Read full descriptionHide full description
TMR Memory Test application is used for conducting targeted memory reactivation (TMR) experiment in education purposes. Newly acquired information is stabilized into long-term memory through the process of consolidation. Memories are not static; rather, they are constantly updated via reactivation, and this reactivation occurs preferentially during Slow-Wave Sleep. This application uses method called targeted memory reactivation, whereby auditory cues that were previously associated with learning are re-presented during sleep, triggering recall of stored memories and through this strengthening these memories.
Make Chirps
Explore the physics of gravitational waves through interactive simulations and visualizations. Understand black hole mergers and their impact on spacetime with dynamic animations and auditory experiences. Learn about LIGO's pioneering work through educational insights.
- Physics simulation of black hole mergers
- Waveform plots and spectrogram visualizations
- Auditory experience of gravitational waves
- Dynamic animations of black hole collisions
- Educational insights on LIGO and cosmic phenomena
Read full descriptionHide full description
This educational app displays gravitational wave chirps created by mergers of massive black holes in several different ways, giving users an intuitive understanding of these exotic disturbances of space-time itself produced by cataclysmic events in distant galaxies. FEATURES: • Simulation: Experience the intricate behavior of gravitational waves through physics simulation of inspiralling black holes that merge to form a final black hole which then “shakes off” its excess energy. • Visualizations: See the essence of gravitational waves via waveform plots, frequency evolutions, and spectrograms, to understand the patterns and how they depend on black hole masses. • Auditory Experience: Listen closely as you hear the evolution of gravitational waves, detecting the characteristic increase in time in strength and frequency. Try varying masses to see how pitch is affected. • Dynamic Animations: Witness the captivating dance of black holes in collision animations. Explore the propagation of these waves through space-time with mesmerizing spiral animations. • Educational Insights: Gain a comprehensive understanding of gravitational waves and the pioneering work of LIGO through informative text pages, enhancing your knowledge of these cosmic phenomena. COMPATIBILITY Compatible with iPhone and iPad, iOS 16 or later. ACKNOWLEDGEMENT Supported by the National Science Foundation with grant PHY-2110181.
Screenshots
Verdict
The clearest difference is update cadence: TMR Memory Test at every 3 weeks against Make Chirps's every 3 months. TMR Memory Test also leads on iOS requirement (12.0 vs 16.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TMR Memory Test ships an update every 3 weeks, Make Chirps every 3 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.
| Parameter | TMR Memory Test | Make Chirps |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 19 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Backyard Brains | John Keith Riles |
In-app purchases
TMR Memory Test
No in-app purchases
Make Chirps
No in-app purchases
Questions
Is TMR Memory Test free?
Is Make Chirps free?
Do TMR Memory Test or Make Chirps have ads?
Which is updated more often, TMR Memory Test or Make Chirps?
Other comparisons















