# Calculi vs Digits Basic Tape Calculator

The clearest difference is update cadence: Digits Basic Tape Calculator at every 2 days against Calculi's every 2 months. Digits Basic Tape Calculator also leads on iOS requirement (10.3 vs 17.6). Calculi's advantage is ratings volume (383 vs 44) and review sentiment (51% vs 40%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Calculi sells 4 in-app purchases, starting at $2.99 per year and Digits Basic Tape Calculator sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Calculi against 4.5 for Digits Basic Tape Calculator. That said, the two scores are not equally well evidenced: Calculi has 383 ratings behind it against 44, so its average is the more settled of the two. Written reviews are what separate them: 51% of Calculi's written reviews are positive against 40% of Digits Basic Tape Calculator's.

Calculi ships an update every 2 months, Digits Basic Tape Calculator every 2 days. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Calculi | Digits Basic Tape Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (383 ratings)](https://appshunter.io/ios/app/calculi-scientific-calculator/id452182503/reviews) | **[4.5 (44 ratings)](https://appshunter.io/ios/app/digits-basic-tape-calculator/id1448621180/reviews)** |
| Number of ratings | **383** | 44 |
| Positive reviews | **51.3% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 43 MB | 35 MB |
| Requires iOS | 17.6 | **10.3** |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Natole, Jr.](https://appshunter.io/developer/443621043) | [Shift](https://appshunter.io/developer/364500118) |

## 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


### Digits Basic Tape Calculator

[App page](https://appshunter.io/ios/app/digits-basic-tape-calculator/id1448621180)

This app offers a calculator with spreadsheet-like editing capabilities, allowing users to easily correct and manage calculations. It features a polished interface and supports various devices. Additional features can be unlocked through in-app purchases.

**Highlights:** Editable calculation tape, Spreadsheet-like editing, Polished user interface, Multi-tape management (in-app purchase), Sharing and printing (in-app purchase), Dark Mode support, VoiceOver support

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Design | $0.99 | one-time |
| Pro Export and Sharing | $0.99 | one-time |
| Pro Features | $1.99 | one-time |


## Frequently asked questions

### Is Calculi free?

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

### Is Digits Basic Tape Calculator free?

Digits Basic Tape Calculator is free to download, with in-app purchases available.

### Which has better reviews, Calculi or Digits Basic Tape Calculator?

Digits Basic Tape Calculator is rated higher. Calculi averages 4.4 out of 5 from 383 ratings, while Digits Basic Tape Calculator averages 4.5 from 44 ratings.

### Do Calculi or Digits Basic Tape Calculator have ads?

Neither Calculi nor Digits Basic Tape Calculator shows ads.

### Which is updated more often, Calculi or Digits Basic Tape Calculator?

Calculi ships an update every 2 months, and Digits Basic Tape Calculator every 2 days. Most recently, Calculi was updated on November 4, 2026 and Digits Basic Tape Calculator on November 2, 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.*