NOURAKU vs NeuroPhysMatrix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NOURAKU
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TOKIDOKEI is a screen time companion that fights phone dependency through visualization and gamification. The Melting Clock The numbers on your clock face drip like candle wax during the hours you spent on your phone. The melted wax pools at the bottom of the screen, confronting you with the time you have lost. It is a device for facing how many hours your phone has stolen from you. Earning Crystals Each minute away from your phone becomes one crystal. Continuous restraint earns bonus crystals, and accumulated crystals evolve into the Stones of Time. Dew, Frost, Ice, Quartz, Sapphire, Amethyst, Topaz, Ruby, Emerald, and finally the Diamond. Your history of restraint becomes a beautiful collection in your garden. Time Thieves Exposed See your usage ranked by category (SNS / Video / Games / Browser). Per-app rankings are planned for v1.1. Melt Warnings When your usage exceeds your personal baseline (the median of the past 14 days), some of your hard-earned crystals melt away like wax. The pain of loss fuels tomorrow's restraint. Relief Mechanism For travel and work days when you cannot avoid heavy use, three Freeze Days per month protect your streak. The app automatically suggests using one before your streak breaks. The Concept Phone use is "time that melts and disappears." Restraint is "time that crystallizes and remains." Through this contrast metaphor, the app gently reshapes your relationship with your phone, in a poetic and literary world. Achievements Five badges unlock as your cumulative restraint time grows: 1 movie (5 hours), 1 international trip (20 hours), 1 qualification (100 hours), Programmer-ready (1,000 hours), and Master (the 10,000-hour rule). The meaning of the time you have reclaimed becomes visible. Daily Reminder Local notification at a time of your choice: "Time to check today's melt." Enable, disable, or change the time from Settings. Daily Quests Three small restraint missions every day: "No phone for the first 30 minutes," "Keep SNS under 5 minutes," and so on. Watching a short video ad lets you reroll the quests once. Manual Entry Mode If you prefer not to grant Screen Time access, enter your usage time per category (SNS / Video / Games / Browser) by hand and keep earning crystals and streaks all the same. TOKIDOKEI Pro (Monthly Subscription) The core experience is fully free. Pro (150 yen/month with a 7-day free trial) unlocks: - No ads - 1.5x crystal earn rate - 5 Freeze Days per month (instead of 3) - Pro-only high-difficulty quests Payment is charged to your Apple Account at confirmation of purchase. The subscription auto-renews for 150 yen/month unless turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the period. Any unused portion of the free trial is forfeited when you purchase a subscription. Manage or cancel anytime in iOS Settings > [Your Name] > Subscriptions. Terms of Use (EULA): https://tokidokei.fujibit.com/en/terms/ Privacy Policy: https://tokidokei.fujibit.com/en/privacy/ Privacy Your data is stored on your device. Nothing is sent to our servers. Multi-device iCloud (CloudKit) sync is planned for a future release. Ads are served through AdMob; personalized ads appear only after you grant App Tracking Transparency permission. Users in the EEA / UK go through the UMP (User Messaging Platform) consent flow.
NeuroPhysMatrix
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NeuroPhysMatrix lets you explore neuronal action potentials, firing characteristics, ion channels, optogenetics, synaptic integration, neural circuits, and axon conduction by changing simulation parameters. An optogenetics simulation has been added to celebrate the 2026 Nobel Prize in Physiology or Medicine. Change stimulus strength and duration, channel conductance, input location, and connection strength to see how membrane voltage and currents respond. SEVEN SIMULATIONS • Action Potential: Relate membrane voltage to Na⁺ and K⁺ currents, channel states, and ion movement. Explore refractoriness with paired stimuli, strength–duration curves, and recovery from Na⁺ inactivation. • Neuronal Firing Characteristics: Compare firing rate, adaptation, delayed firing, and rebound responses in representative neuron models. • Ion Channels: Use current clamp and voltage clamp to explore the relationship between membrane voltage and 14 representative channels and background currents. • Optogenetics: Compare light stimuli, photocurrents and membrane voltage with excitatory and inhibitory opsins, including ChR2, ArchT, eNpHR3.0 and GtACR2. • Synaptic Integration: Compare how input location, number, strength, timing, and dendritic morphology affect voltage responses. • Neural Circuits: Change excitatory and inhibitory connection strengths and transmission delays. Observe interactions through voltage traces and spike rasters. • Axon Conduction: Explore schematic models of myelinated and unmyelinated conduction and the effects of focal demyelination. KEEP RESULTS IN VIEW Change the time-axis range and observation time to connect waveforms with diagrams. Switch between Settings and Guide to review parameter meanings and key points while exploring results. PRO — ONE-TIME PURCHASE • Edit cell count, wiring, and the stimulated cell in neural circuits. • Edit dendritic branches, parent connections, length, and diameter. • Save and load named conditions, including inputs, in all seven workspaces. • Record experiment conditions and key measurements, compare numerical results, and export CSV. • Adjust action-potential conductances and use comparison features. • Hold ion-channel, optogenetic and dendritic waveforms to compare responses before and after changes. • Unlock five specialized neuron presets. Basic simulations, circuit and dendritic morphology presets, basic settings, and guides are free. Four foundational neuron presets are free; five additional presets are included in Pro. Available on iPhone, iPad, and Mac in 10 languages. Waveforms and diagrams are computational models and schematic representations, not exact reproductions of a particular biological cell or patient. This app is not a medical device and is not intended for diagnosis or treatment.
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Verdict
The clearest difference is in-app purchases: NOURAKU at none against NeuroPhysMatrix's 1. NOURAKU also leads on iOS requirement (13.0 vs 17.0). NeuroPhysMatrix's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 5 weeks). On price 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. NeuroPhysMatrix sells 1 one-off in-app purchase. NOURAKU asks for nothing beyond the download.
NOURAKU ships an update every 5 weeks, NeuroPhysMatrix every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | NOURAKU | NeuroPhysMatrix |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Fuji Bit Inc. | Takashi Nakano |
In-app purchases
NOURAKU
No in-app purchases
NeuroPhysMatrix
- Pro$7.99
Questions
Is NOURAKU free?
Is NeuroPhysMatrix free?
Do NOURAKU or NeuroPhysMatrix have ads?
Which is updated more often, NOURAKU or NeuroPhysMatrix?
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