# Calculator₊ vs Covidence

The clearest difference is in-app purchases: Covidence at none against Calculator₊'s 10. Covidence also leads on ads (none vs shown) and rating (5.0 vs 4.7). Calculator₊'s advantage is ratings volume (1.7M vs 1) and update cadence (every 3 weeks vs every 4 months). On price and iOS requirement there is nothing between them.

Both are free to download. Calculator₊ sells 10 in-app purchases, starting at $0.99 per month. Covidence asks for nothing beyond the download.

Covidence holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Calculator₊ has 1.7M ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 63% of Calculator₊'s written reviews are positive against 50% of Covidence's, so the app with the better star average is not the one people write more warmly about.

Calculator₊ ships an update every 3 weeks, Covidence every 4 months. The most recent releases landed on November 13, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Calculator₊ | Covidence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.7M ratings)](https://appshunter.io/ios/app/calculator/id398129933/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/covidence/id1294666836/reviews)** |
| Number of ratings | **1.7M** | 1 |
| Positive reviews | **63.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#102** | — |
| Size | 247 MB | 158 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [Covidence A/S](https://appshunter.io/developer/472309294) |

## What reviewers say

### Calculator₊

[App page](https://appshunter.io/ios/app/calculator/id398129933)

**Currently charting:** #102 Top Grossing · Utilities (US App Store)

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversions. It features an AI-powered math solver that can solve problems from photos and provides a dedicated space for math notes. Accessibility features ensure ease of use for all users.

**Highlights:** Basic and scientific calculations, Unit and currency converter, AI-powered math solver with photo recognition, Math notes with instant solutions, Calculation history log, Accessibility features (Dynamic Text Size, VoiceOver, High-Contrast Mode)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Member Special Offer | $0.99 | per month |
| Monthly Premium Member | $0.99 | per month |
| 1 Month Premium Access | $1.49 | per month |
| Half-Yearly Premium Member | $3.99 | per 6 months |
| Calculate Faster, AI, & No Ads | $4.99 | per 7 days |
| 1 Year Ad-Free | $5.99 | per year |
| Calculate Faster, AI, & No Ads | $5.99 | per 7 days |
| 1 Month Premium Trial | $5.99 | per 7 days |
| Math Solver/Full Access/No Ads | $5.99 | per 7 days |
| 6 Months Premium Access | $8.99 | per 6 months |

**What reviewers like**

- 💻 Useful calculator features
- 🎨 Customizable backgrounds and themes
- 📚 Helpful history tracking

**What reviewers complain about**

- 📺 Intrusive full-screen ads
- 💰 Expensive subscription model
- 🔍 Ads blocking calculator functionality

**Reported bugs**

- Incorrect calculation results for certain functions
- Inability to delete last entered digit without clearing entire calculation

**Requested features**

- Ability to delete individual calculation history entries
- More free advanced calculator features (fractions, currency, etc.)
- Improved ad placement that doesn't interfere with usage


### Covidence

[App page](https://appshunter.io/ios/app/covidence/id1294666836)

This client utility app allows users to control various Covidence devices, including Oculus5, Oculus Nxtgen, Audius, and Micro Oculus product ranges. It provides essential functionality for managing these smart home and audio devices.

**Highlights:** Device control, Oculus5 support, Oculus Nxtgen support, Audius support, Micro Oculus support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator₊ free?

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

### Is Covidence free?

Covidence is free to download, with no in-app purchases.

### Which has better reviews, Calculator₊ or Covidence?

Covidence is rated higher. Calculator₊ averages 4.7 out of 5 from 1.7M ratings, while Covidence averages 5.0 from 1 ratings.

### Do Calculator₊ or Covidence have ads?

Calculator₊ shows ads; Covidence does not.

### Which is updated more often, Calculator₊ or Covidence?

Calculator₊ ships an update every 3 weeks, and Covidence every 4 months. Most recently, Calculator₊ was updated on November 13, 2026 and Covidence on November 6, 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.*