# Summa – Precision Made Simple — Numbers, refined for you

> Numbers, refined for you (iPhone/iPad app by Ville Scholin.)

- Source: https://appshunter.io/ios/app/summa-precision-made-simple/id6757430332 (this page in markdown: same URL + `.md`)
- Developer: [Ville Scholin](https://appshunter.io/developer/1832654283)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 19 MB
- Languages: American English
- Released: 2026-02-05
- Data updated: 2026-08-11
- User reviews in markdown: https://appshunter.io/ios/app/summa-precision-made-simple/id6757430332/reviews.md

## What is Summa?

Summa - Precision Made Simple is a clean, fast, and beautifully designed calculator for iPhone and iPad. Built for everyday math, scientific calculations, quick conversions, and everything in between, Summa makes calculating effortless, accurate, and genuinely enjoyable.

With live preview, a fast history bar, and natural gestures, Summa helps you move quickly without losing context. Results appear as you type, past calculations stay within reach, and Favorites make it easy to save the numbers you return to most.

Powerful features, simply presented:

- Live preview - see results instantly as you type
- History and Favorites - revisit, reuse, and save important calculations
- Exponents and roots - x^2, x^y, square root, and y-th root
- Trigonometry - sin, cos, tan, and inverse arc functions
- Degree and radian support - easily switch between DEG and RAD
- Mathematical constants - π and e
- Logarithmic functions - ln for natural logarithms
- Smart gestures - swipe, tap, and interact naturally

A calculator with a capable converter:

Summa includes built-in conversions for money, temperature, length, weight, volume, energy, area, and data size. Convert currencies by name or country, work with fiat and crypto rates, or quickly switch between everyday units without leaving the app.

For market data, Summa offers flexible refresh behavior with adjustable fiat and crypto cache timing. Relay mode can route fiat and crypto market refreshes through Studio Elytra15’s cache for a more private path. 

Designed to feel personal:

- Multiple themes, including light, dark, and crafted color themes
- Alternate Home Screen icons
- A calm, polished interface for iPhone and iPad
- Completely free - no ads, no in-app purchases, and no tracking

Whether you’re at home, at work, in class, or on the go, Summa is your reliable, elegant calculator companion.

Precise math, beautifully simple.


## Version history (last 5 releases)

### 1.3.2 — 2026-08-09

What’s New in This Version:

- Fixed an issue where calculator button presses might not register unless tapped near the center.
- Fixed the original Home Screen icon so it follows the system's light, dark, and tinted appearances.

### 1.3.1 — 2026-07-24

What’s New in This Version:

- Fixed calculation edge cases involving parentheses, roots, tangent, and invalid results.
- Improved converter reliability and made the Back action more consistent.
- Improved accessibility for the calculator keypad, history, onboarding, and larger text sizes.
- Added an option to delete all favorites.
- Other bug fixes and stability improvements.

### 1.3 — 2026-06-05

What’s New in This Version:

- The converter now goes beyond money, with built-in temperature, length, weight, volume, energy, area, and data size conversions.
- Relay mode is now available for fiat and crypto rates, routing market refreshes through Studio Elytra15's cache for a more private path. Direct mode is still available in Converter settings.
- Market data can now preload after your first Money choice, so fiat and crypto conversions are ready faster when you finish the pair.
- Fiat and crypto cache timing can now be adjusted.
- History now has Favorites.
- Two new Home Screen icons are available: Aequalis and Pride Month 2026.
- Other changes and fixes.

### 1.2 — 2026-05-01

What’s New in This Version:

- Updated the Settings experience with a cleaner card-based design, consistent with Caffinity

### 1.1 — 2026-03-27

What’s New in This Version:

- Crypto conversion is now available alongside fiat conversion, including fiat-to-crypto and crypto-to-crypto pairs.
- One-hand mode is improved on iPhone with a cleaner compact layout, left or right side preference, and a quick header toggle.
- Copy, paste, and restored history expressions now round-trip more reliably for functions, constants, and powers.
- Decimal-comma calculations now behave correctly in x^y and y-root-x flows.
- Currency conversion now works for zero values and cache status is shown more accurately.
- Other bug fixes and improvements.

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## More apps by Ville Scholin

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- [JK WF](https://appshunter.io/ios/app/jk-wf/id6751512771)
- [SweepSwift – Clean Minesweeper](https://appshunter.io/ios/app/sweepswift-clean-minesweeper/id6752554977)

All apps by Ville Scholin: https://appshunter.io/developer/1832654283

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*