razuma — Android apps

Add vintage surveillance footage effects with film grain and scanlines.

synced Jul 17, 2026

A study app for the Japan Class 1 Telecommunications Construction Management Engineer (1級電気通信工事施工管理技士) first-stage exam. Study efficiently with practice questions and detailed explanations across all 8 subjects. ■ Subjects Covered • Telecom Engineering (Electrical Theory / Commun

synced Jul 17, 2026

Create retro photos with 2-color gradients. One tap for vintage & film looks.

synced Jul 17, 2026

Japan Eco Certification Test exam prep with explanations

synced Jul 17, 2026

Pick two photos and create a stunning blend! ■ How It Works • Select a background image from gallery • Select a foreground image to overlay • Adjust opacity with slider • Pinch to resize, drag to move, rotate to angle ■ Features • Rotation lock for precise scaling • High-quality

synced Jul 18, 2026

Traffic guard certification Grade 2 exam prep with questions and explanations

synced Jul 17, 2026

Extract image contours, outlines and edges and convert them to line art Detect image outlines and convert to edge-detected images to create unique and artistic images. It can also be used as a reference for manga, drawings, designs, etc. You can change the black line on the white

synced Jul 18, 2026

Carefully selected questions with explanations to help you pass the exam | Subject-specific learning, correct answer rate management, offline support

synced Jul 17, 2026

An app with a simple function to convert photos and images to retro sepia tones. By applying the sepia effect, you can create unique images or artistic, vintage-style photos. Perfect for those who want nostalgic-looking images or sepia-toned pictures. Your images will resemble ph

synced Jul 18, 2026

Japan Assistant Surveyor national exam prep with detailed explanations

synced Jul 17, 2026

Sustainable management exam prep with practice questions and explanations

synced Jul 17, 2026

Registered Drug Seller exam prep with practice questions and explanations

synced Jul 17, 2026

Transform photos into authentic 80s 90s VHS footage with retro effects.

synced Jul 18, 2026

Financial Grade 3 Banking Exam prep with practice questions and explanations

synced Jul 17, 2026

Study for Japan Class 2 Electrical Construction Mgmt exam with Q&A, offline

synced Jul 17, 2026

Japan Class 2 electrician exam | Practice questions with detailed explanations

synced Jul 17, 2026

Study for Japan Class 2 Telecom Construction Management exam with Q&A offline

synced Jul 17, 2026

Japan Poisonous Substances Handler exam prep with detailed explanations

synced Jul 17, 2026

A study app for the Japan Welfare Housing Environment Coordinator Grade 3 (福祉住環境コーディネーター検定試験®3級) exam. Study efficiently with practice questions and detailed explanations across all subjects. ■ Subjects Covered • Aging society and coexistence • Importance and purpose of welfare h

synced Jul 17, 2026

A study app for the Japan Type 2 Securities Representative exam. Study efficiently with practice questions and detailed explanations across all 8 subjects. ■ Subjects Covered - Financial Instruments and Exchange Act - Laws on Solicitation and Sales of Financial Products - Associa

synced Jul 17, 2026

Study for Japan's Securities Internal Control Supervisor exam with Q&A offline

synced Jul 17, 2026

Study for Japan Class 3 Refrigeration Engineer exam with Q&A, offline

synced Jul 17, 2026

A study app for the Japanese Pastry Hygienist (製菓衛生師 / Seika Eiseishi) national exam. Study efficiently with practice questions and detailed explanations across all 6 subjects. ■ Subjects Covered • Hygiene Laws and Regulations • Public Health • Nutrition • Food Science • Food Hyg

synced Jul 17, 2026

Japan fire equipment officer Class 1 exam | Practice questions with explanations

synced Jul 17, 2026

Japan fire equipment officer Class 7 exam | Practice questions with explanations

synced Jul 17, 2026

It is a tool that can easily reduce fractions

synced Jul 17, 2026

Carefully selected questions with explanations to help you pass the exam | Subject-specific learning, correct answer rate management, offline support

synced Jul 17, 2026

A study app for the Japan Grade 2 Landscape Construction Management Engineer exam. Study efficiently with practice questions and detailed explanations across all 8 subjects. ■ Subjects Covered - Landscape Theory - Landscape Materials - Landscape Construction - Landscape Facilitie

synced Jul 17, 2026

It is a simple drawing pad application. You can easily use it for drawing, handwritten notes, graffiti, sketchbook, etc. 16 kinds of colors It is also possible to change the thickness of the pen You can also save the drawn image

synced Jul 17, 2026

Japan QC検定® Grade 1 quality control exam | Practice questions with explanations

synced Jul 17, 2026

A study app for the Japan QC検定® (Quality Control Certification) Grade 2 exam. Study efficiently with practice questions and detailed explanations across all 10 subjects. ■ Subjects Covered - QC Seven Tools - New QC Seven Tools - Basics of Statistical Methods - Control Charts - Pr

synced Jul 17, 2026

Business Manager exam prep with practice questions and detailed explanations

synced Jul 17, 2026

Japan Fundamental IT Engineer (FE) national exam prep with explanations

synced Jul 17, 2026

Carefully selected questions with explanations to help you pass the exam | Subject-specific learning, correct answer rate management, offline support

synced Jul 17, 2026

A scoreboard that can record and count multiple scores.

synced Jul 17, 2026

A simple app that transforms photos into night vision images. Transforming photos into night-vision images creates unique, artistic images. This transformation may help you see objects more clearly in the dark. Enjoy taking photos with an infrared camera and green light. For thos

synced Jul 18, 2026

Japan fire equipment Class A Type 3 exam | Practice questions with explanations

synced Jul 17, 2026

A study app for the Japan Fire Equipment Officer Class A Type 4 exam (fire alarm systems — installation and maintenance). Study efficiently with practice questions and detailed explanations across all 5 subjects. ■ Subjects Covered - Fire Service Laws (General) - Fire Service Law

synced Jul 17, 2026

A study app for the Japan Fire Equipment Officer Class B Type 4 exam (fire alarm systems). Study efficiently with practice questions and detailed explanations across all 4 subjects. ■ Subjects Covered - Fire Service Laws (General) - Fire Service Laws (Type 4) - Basic Knowledge of

synced Jul 17, 2026

Japan FP (Financial Planning) Grade 3 exam prep with detailed explanations

synced Jul 17, 2026

Japan Care Manager (Long-term Care Support Specialist) exam prep

synced Jul 17, 2026

Study for Japan Class 3 Chief Electrical Engineer exam, Q&A offline

synced Jul 18, 2026

Study for Japan Class 1 Electrical Construction Mgmt exam with Q&A, offline

synced Jul 17, 2026

Japan Registered Dietitian exam prep with practice questions & explanations

synced Jul 17, 2026

Japan Construction Machinery Management Engineer Grade 2 exam prep

synced Jul 17, 2026

Japan Hazardous Materials Class B-4 (Otsu-4) exam prep with explanations

synced Jul 17, 2026

A simple camera that can take photos with the colors of the image reversed. By inverting colors and inverting negative and positive images, you can capture unique images and tasteful art-like images. Let's take photos with interesting effects This is for people who want to ta

synced Jul 18, 2026