Japanese Traffic Lights vs PrimeFactorizationGame
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Japanese Traffic Lights
This app simulates Japanese traffic lights for vehicles and pedestrians, offering both LED and incandescent types. Users can customize lighting cycles, control signals manually, and even link two devices via Bluetooth for interactive play or learning.
- Vehicle traffic light simulation (LED/incandescent)
- Pedestrian traffic light simulation (LED/incandescent)
- Customizable lighting cycles
- Manual signal control
- Bluetooth multiplayer control
- Flashing yellow/red light support
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"Japanese Traffic Light Simulator T1" is an application that simulates and displays Japanese traffic lights for vehicles and pedestrians on smartphones. Use it for play or learning. For Vehicles: Includes both LED and incandescent types. Simulates basic 3-light signals (blue, yellow, red) and arrow signals (for general vehicles and trams). The lighting cycle can be changed by setting the number of seconds, or manually at any time. Supports flashing yellow and red lights as well. For Pedestrians: Includes both LED and incandescent types. The lighting cycle can also be changed by setting or manually. Traffic lights control can be performed between two smartphones via Bluetooth® communication. The app cannot be used as an actual traffic light.
PrimeFactorizationGame
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Number meteors are coming! Break them apart with prime factorization! A brand-new brain training game that combines prime factorization with shooting action! Watch the number meteors falling from the sky, tap the correct prime number button, and fire your beam! Break down the numbers as fast as you can. The quicker you perform prime factorization, the faster the meteors shrink and eventually shatter! Train your calculation speed, mental math skills, and decision-making ability all at once. A full-fledged math and brain-training game that can be enjoyed by both kids and adults. [Features] ・Experience prime factorization like an action shooting game ・Quickly choose and destroy multiple falling meteors ・Difficulty levels from Beginner all the way to the super hard Oni mode ・Perfect for improving calculation skills, brain agility, and mental math ・Great for short brain-training sessions and math learning [Recommended for] ・Fans of math puzzles and number games ・Those who love brain training or calculation games ・Anyone who wants to improve their mental math speed ・Players who excel at fast-reaction games ・Parents looking for educational math games for kids Can your brain survive Oni mode? Aim to become the fastest prime factorization master!
Screenshots
Verdict
The clearest difference is update cadence: PrimeFactorizationGame at monthly against Japanese Traffic Lights's every 3 months. 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.
Japanese Traffic Lights ships an update every 3 months, PrimeFactorizationGame monthly. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.
| Parameter | Japanese Traffic Lights | PrimeFactorizationGame |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17 — better | 17.6 |
| Further details — not scored | ||
| Size | 54 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Yosuke Ando | TomatoAppLab |
In-app purchases
Japanese Traffic Lights
No in-app purchases
PrimeFactorizationGame
No in-app purchases
Questions
Is Japanese Traffic Lights free?
Is PrimeFactorizationGame free?
Do Japanese Traffic Lights or PrimeFactorizationGame have ads?
Which is updated more often, Japanese Traffic Lights or PrimeFactorizationGame?
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