# Calculi vs Modulo Calculator, iCalcModulo

The clearest difference is rating: Modulo Calculator, iCalcModulo at 5.0 against Calculi's 4.4. Modulo Calculator, iCalcModulo also leads on in-app purchases (none vs 4) and review sentiment (50% vs 35%). Calculi's advantage is ads (none vs shown) and ratings volume (383 vs 1). On price, update cadence and device support there is nothing between them.

Both are free to download. Calculi sells 4 in-app purchases, starting at $2.99 per year. Modulo Calculator, iCalcModulo asks for nothing beyond the download.

Modulo Calculator, iCalcModulo holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Calculi has 383 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 35% of Calculi's written reviews are positive against 50% of Modulo Calculator, iCalcModulo's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 22, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Calculi | Modulo Calculator, iCalcModulo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (383 ratings)](https://appshunter.io/ios/app/calculi-scientific-calculator/id452182503/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/modulo-calculator-icalcmodulo/id6443557633/reviews)** |
| Number of ratings | **383** | 1 |
| Positive reviews | 35.3% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 43 MB | 9 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Natole, Jr.](https://appshunter.io/developer/443621043) | [Takao Ichimura](https://appshunter.io/developer/1474061593) |

## What reviewers say

### Calculi

[App page](https://appshunter.io/ios/app/calculi-scientific-calculator/id452182503)

A smart and powerful calculator designed for ease of use, offering advanced scientific functions, unit and currency conversion, and a supercharged history tape. It adapts to various devices and supports external keyboards for enhanced functionality.

**Highlights:** Complex expression solving, Unit conversion (17 categories), Currency conversion (30+ currencies), Scientific constants, Supercharged history tape, iMessage app integration, Apple Watch app

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculi Pro | $2.99 | per year |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |

**What reviewers like**

- 👍 Better than stock iPhone calculator
- 📈 History screen with past answers/expressions
- 🔄 Regular helpful updates
- ⌨️ Works with keyboard
- 🗂️ Works in Split Screen

**What reviewers complain about**

- ⚠️ Pop-up rating requests
- 💸 Added ads in updates
- 🎛️ Clutter of unused keys on iPad
- 🐛 Buggy history feature
- 💥 Crashes during multiplication

**Reported bugs**

- Calculation not appearing in history until app restart
- New calculation replaces previous in history tile
- Crashes when multiplying by 1.03
- Physical iPad keyboard not recognized
- App crashes/closes on iPad iOS 13

**Requested features**

- Option for Dark Mode all the time
- Option to choose icons
- Fix Slide Over functionality


### Modulo Calculator, iCalcModulo

[App page](https://appshunter.io/ios/app/modulo-calculator-icalcmodulo/id6443557633)

This utility app functions as a standard calculator with a unique remainder calculation feature for division. It offers a familiar interface, calculation history, and clipboard support. Ideal for tasks requiring division with remainders and general arithmetic.

**Highlights:** Division with remainder calculation, Familiar calculator operation system, Calculation history display, Calculation formula display, Clipboard copy and paste, Percent calculations, Independent memory

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculi free?

Calculi is free to download, with in-app purchases available.

### Is Modulo Calculator, iCalcModulo free?

Modulo Calculator, iCalcModulo is free to download, with no in-app purchases.

### Which has better reviews, Calculi or Modulo Calculator, iCalcModulo?

Modulo Calculator, iCalcModulo is rated higher. Calculi averages 4.4 out of 5 from 383 ratings, while Modulo Calculator, iCalcModulo averages 5.0 from 1 ratings.

### Do Calculi or Modulo Calculator, iCalcModulo have ads?

Modulo Calculator, iCalcModulo shows ads; Calculi does not.

### Which is updated more often, Calculi or Modulo Calculator, iCalcModulo?

Calculi ships an update every 2 months, and Modulo Calculator, iCalcModulo every 2 months. Most recently, Calculi was updated on October 22, 2026 and Modulo Calculator, iCalcModulo on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*