Proteus AI chat is very useful
Currency rates refresh button is good. Blood Sugar conversion with AI chat is very helpful.
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About
This app offers instant conversions for over 350 units across 28 categories, including compound measurements and live currency exchange rates. It features an AI assistant for natural language queries and voice input for hands-free operation.
✓Compound unit conversions
✓Live currency exchange rates
✓AI assistant for natural language queries
✓Voice input for hands-free conversions
✓Extensive unit categories
✓Customizable interface
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What's New in Proteus Unit Converter
1.0.1
June 13, 2026
• Start free — your first 30 uses (conversions and AI chats) are on us. • Unlock every unit, currency, and the AI assistant forever with a one-time purchase. • Performance and stability improvements.
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In-App Purchases
$2.49
Proteus Full Access
Unlock every unit & currency conversion, forever.
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FAQ
What is Proteus?
Proteus is a unit and currency converter app that uses AI to understand natural language queries and perform conversions instantly. It supports over 350 units across 28 categories and offers live currency exchange rates.
Does Proteus have ads?
No, Proteus is ad-free. The description explicitly states 'No ads. No clutter. Just answers.' This ensures a clean and focused user experience.
How does the AI assistant in Proteus work?
The 'Ask Proteus' feature allows you to type or speak natural language questions like 'How many tablespoons in 200 ml?' and it will provide the conversion instantly on your device.
What are the pricing options for Proteus?
Proteus offers a 7-day free trial. After the trial, the full converter can be unlocked with a one-time purchase of $2.49. An optional 'Ask Proteus Pro' AI upgrade is available for $0.59/month.
Can Proteus convert compound units?
Yes, Proteus excels at compound conversions. You can enter measurements like '5 ft 7 in' or '1 lb 4 oz' and it will convert them accurately without requiring you to break them down into separate steps.
Is Proteus available on multiple devices?
Based on the provided data, Proteus is supported on iPhone and iPad, making it accessible for Apple users.
How often are the currency exchange rates updated?
Currency exchange rates in Proteus auto-refresh every few hours. You can also pull to refresh anytime for the latest rates, and the app works offline by caching the last known rates.
What is the age rating for Proteus?
Proteus has an age rating of 4+, making it suitable for a wide range of users, including children and adults.