Best apps like Seien

10+ similar apps compared and reviewed

3.7 avg rating

10 free apps

Updated October 2026

NIPPON INFORMATION CO.,LTD.

Seien is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Seien

AI Bookmark Manager|自動フォルダ機能付き by Shogo Hashinoguchi

Editor's Choice

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0.0(0 ratings)

FreeAdsIn-App Purchases

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HatenaCounting by 株式会社はてな

Strong Contender

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Worth Considering

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給料タイマー

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Phone Temperature Checker

CPU Cooler & Battery Saver

Free

Monitor your device's thermal status and receive one-tap cooling assistance. Optimize performance during gaming, charging, or heavy usage with live system insights and customizable cooling profiles.

Live system status monitoringTemperature estimation (°C/°F)CPU, memory, and battery insights

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Researchly | エンジニアのためのAIフィード

Easily count the number of characters and words in your text. Paste your content, submit, and view the results. Save and edit your notes for later use.

Character countingWord countingText pasting

Protractor Angle Meter

Measure angles from photos

Free

This app allows you to measure angles from photos using your device's camera or existing images. Add multiple measurements with customizable colors and labels, and view results in various units. Save your work automatically and export high-quality images of your measurements.

Measure angles from photosLive camera or photo library inputMultiple angle measurements per photo

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