どっちが安い？どちやす

Do you ever find yourself struggling to decide what to buy when you're standing in front of the shelves at the supermarket or drugstore?

"500g for 398 yen" vs. "1.2kg for 880 yen"—which is the better deal?

"20% off" vs. "3 for 500 yen"—how do I compare them?

"Docchiyasu" is a price comparison app that instantly determines which is actually cheaper simply by entering the price and quantity. Even for products with different units or quantities, it converts them to a common standard such as per 100g or per 100ml, allowing for easy comparison at a glance.

■ Recommended for:

・Those who calculate unit prices with a calculator while shopping

・Those who want to compare the actual price of sale items and bulk purchase packs

・Those who want to correctly compare products with different capacities or units

・Those who want to know the true price after discounts

■ Main Features

【Unit Conversion Comparison】
Supports g, kg, mg (weight), ml, L (volume), cm, m (length), and 個, 枚, 本, 回, 袋 (quantity). It automatically converts and compares products with different units, ensuring fair comparisons.

[Supports Discounts and Bulk Purchases]
Three types of discounts can be set for each product: "◯% OFF," "◯ Yen Off," and "N items for M Yen," allowing comparisons based on the effective unit price after discounts.

[Supports Quantity per Pack]
By specifying the number of items per pack, accurate comparisons between bulk purchase packs and individual items are possible.

[Instant Results Update]
The unit price is recalculated in real time every time you enter a value. There is no need to press a confirmation button. The cheapest product is marked with a badge, and the difference/percentage from the second cheapest, as well as the actual savings, are clearly displayed.

[Switch Display Criteria]
Simply tap the summary at the bottom to switch the display criteria, such as per 100g or per 1kg.

[Automatic Saving of Input]
The most recently entered information is automatically saved and restored the next time you launch the app.

[Designed for Quick Use in Stores]
A simple screen layout designed for one-handed operation in front of product shelves. By limiting the input fields to the bare minimum, you can reach your results in seconds without any confusion.

■ About Pricing
All basic functions are available for free (with ads). There are no restrictions on the comparison function itself. We offer the following auto-renewing subscriptions that hide banner ads and startup ads:

• Monthly plan (ad-free / auto-renewal every month)

• Annual plan (ad-free / auto-renewal every year)

Payment will be charged to your Google Play account at the time of purchase confirmation. Unless you turn off auto-renewal at least 24 hours before the end of the current period, it will automatically renew and the same amount will be charged. You can stop or cancel your renewal at any time from the Google Play Store app → (Profile) → "Payments and subscriptions". The price will be displayed on the in-app purchase screen.

Terms of Use (End User License Agreement / EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy:
https://www.psytwo.net/privacy-policy/

■ Supported Environments
Compatible with both Android and iOS.