iPhone Screenshots


●●● Celebrating new release ●●●
○○○ Limited time FREE ○○○

ZERO is a smart calculator that lets you calculate with note (memo).

You no longer have to open up a side-memo/note to check what you are calculating. Just type in all the items as if you are taking a note while results are calculated in real-time. Get away from the stress of remembering the values (numbers) and what you wish to calculate.

Every calculation will be saved to be loaded back anytime. Put them in a group or attach tags for easier access. You can even attach units of different measurements and ZERO will convert / calculate the result on the fly.

ZERO will give you an unmatched experience of intuitive calculation.

■ Fast & Convenient editing ■

- Designed to be edit-friendly (grab & type with two hands as if you are texting).
- Easily move between values to edit (modify / delete) them.
- Insert new values or switch positions for existing values anytime.
- Search as you type (previously saved items will be displayed in real-time. Select and re-use them).

■ Manage like a Pro ■

- Sometimes, naming a value is not enough. Use groups and tags to store them for faster access.
- Search with tags to look-up your favorites much faster.
- Use filters to sort items in ascending / descending order.
- ‘Manage’ mode provides an easy way to delete / move / duplicate items in bulk.

■ Load multiple equations at once ■

- No more pressing ‘reset’ button every time you calculate.
- Load up to 30 equations at the same time.
- Easily navigate from one equation to another.
- Changes in one equation will be reflected in other equations immediately.

■ Link Values & Equations ■

- ZERO supports both ‘Value to Equation’ (V2E) and ‘Equation to Value’ (E2V) conversion.
- Convert value to equation or equation to value (vice versa).
- Select an item to see its structure (relationship / composition) at a glance.
- By extending and reusing values, you will create a unique and lasting calculation in no time.

■ Currency / Unit Conversion ■

- Convert with 168 latest currencies and 80 frequently used units.
- Different measurements will be auto-converted and calculated simultaneously.

[ MORE ]

- Supports 4 different color themes
- Supports 10 different fonts and an option to enlarge
- Export calculation in images (share it with friends)
- Regular updates coming


· support@zero-calculator.com
· twitter.com/zero_calculator

What’s New

Version 1.1

+ Currency feature enhanced

◦ Your review will help this app grow further. Rate us 5 stars if you liked it : )

Ratings and Reviews

3.5 out of 5
2 Ratings

2 Ratings

xtyjk ,



Developer Response ,

thank you very much : ) We are glad you liked it!!


zero studio
10.8 MB

Requires iOS 10.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, iPad Pro (12.9-inch), iPad Pro (12.9-inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch) (3rd generation), iPad Pro (12.9-inch) (3rd generation) Wi-Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi-Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi-Fi + Cellular, and iPod touch.


English, Danish, Dutch, Finnish, French, German, Greek, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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