Calo Downloads & RevenueCalo: Scientific Calculator · App Store
Calculator⁷
Not in any tracked top chart right now.
Updated 4 Nov 2026 · rankings refresh through the day
CategoryFinance
PriceFree
Released
Rating★ 4.7 (22)
Version3.3
Age rating4+
First seen by us
12 Oct 2026
12 Oct 2026Calo: Scientific Calculator update history & changes
Last change · 9 events since 12 Sep 2024Full timeline ↓📦Updated to version 3.3📦Updated to version 3.2🆕First spotted by AppInsider🆕Its developer released another app: HTTPS Capture Traffic Decrypt
Full timeline · 8 events in the last 12 months
- ✏️Calo: Scientific Calculator: app got bigger10 MB → 13 MB (+29%)
- 📦Calo: Scientific Calculator updated to version 3.31. All-new expression input: the cursor lands right where you tap — press and drag to move it, double-tap to select a number or function, triple-tap to select all
2. Type over a selection to replace it, delete it with one press of backspace; thousand separators are dropped automatically when pasting
3. Added an "Open Formula" shortcut to jump straight to your saved formulas from Shortcuts or Siri
4. New roller-style animation when switching with the 2nd key
5. Refreshed dark mode icons… more - ✏️Calo: Scientific Calculator: app got bigger5 MB → 10 MB (+94%)
- 📦Calo: Scientific Calculator updated to version 3.21. Added a scientific calculator
2. Added a custom formula calculator
3. Refined some UI and interaction details
4. Improved several issues reported by users - 📦Calo: Scientific Calculator: first update in 374 days
- 🆕Calo: Scientific Calculator first spotted by AppInsiderUnited States (found via developer)
- 🆕Calo: Scientific Calculator: its developer released another app: HTTPS Capture Traffic Decrypt
- 🆕Calo: Scientific Calculator released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
22 ratings
Measured
Calo: Scientific Calculator on the App Store
App details
App ID
6670785680
Publisher
Space-Time Transformation Technology Co., Ltd.
On the store since
Sep 2024
2 years on the store
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
8
EN FR DE JA KO RU ZH ES
Size
13 MB
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.7 ★
22 ratings
Measured
Ratings
22
Measured
About Calo: Scientific Calculator
Calo is a free, ad-free calculator for everyday math and deeper exploration. A clean keypad keeps quick calculations simple; switch to scientific mode when you need more.
Calculate with confidence
• A native high-precision engine keeps up to 40 significant digits in results.
• See results as you type. Move the cursor to edit or paste an expression, and use a hardware keyboard on iPad.
• Explore powers, roots, logarithms, trigonometry, factorials and more. Switch between degrees and radians.
• Tap a result to cycle through rounded, full-precision, fraction (when available) and scientific formats. Use memory keys for multi-step work.
Keep your work close
• Search your calculation history, add notes, reuse an earlier expression, or export results as CSV or a receipt-style image.
• Save expressions you use often and insert them with a tap.
• See recent results in Home Screen and Lock Screen widgets. Open Calo from Control Center, or calculate and retrieve your latest result with Siri and Shortcuts.
Make it yours with light and dark themes, accent colors, sounds, Chinese voice pronunciation, adjustable decimal places and optional iCloud sync.
Calculate with confidence
• A native high-precision engine keeps up to 40 significant digits in results.
• See results as you type. Move the cursor to edit or paste an expression, and use a hardware keyboard on iPad.
• Explore powers, roots, logarithms, trigonometry, factorials and more. Switch between degrees and radians.
• Tap a result to cycle through rounded, full-precision, fraction (when available) and scientific formats. Use memory keys for multi-step work.
Keep your work close
• Search your calculation history, add notes, reuse an earlier expression, or export results as CSV or a receipt-style image.
• Save expressions you use often and insert them with a tap.
• See recent results in Home Screen and Lock Screen widgets. Open Calo from Control Center, or calculate and retrieve your latest result with Siri and Shortcuts.
Make it yours with light and dark themes, accent colors, sounds, Chinese voice pronunciation, adjustable decimal places and optional iCloud sync.
Latest updates
3.3
1. All-new expression input: the cursor lands right where you tap — press and drag to move it, double-tap to select a number or function, triple-tap to select all
2. Type over a selection to replace it, delete it with one press of backspace; thousand separators are dropped automatically when pasting
3. Added an "Open Formula" shortcut to jump straight to your saved formulas from Shortcuts or Siri
4. New roller-style animation when switching with the 2nd key
5. Refreshed dark mode icons
3.2
1. Added a scientific calculator
2. Added a custom formula calculator
3. Refined some UI and interaction details
4. Improved several issues reported by users
3.1
1. Add the function to copy the most recent result by long-pressing the APP icon.
2. Add the copy function to the real-time preview of calculation results.
Store changes
What Calo: Scientific Calculator changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
10 MB → 13 MB (+29%)
App got bigger
5 MB → 10 MB (+94%)
