# Calculator # vs Solves

The clearest difference is ads: Solves at none against Calculator #'s shown. Solves also leads on review sentiment (91% vs 60%) and rating (4.9 vs 4.6). Calculator #'s advantage is ratings volume (36K vs 381) and iOS requirement (12.1 vs 15). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Calculator # sells 6 in-app purchases, starting at $1.49 per month and Solves sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Solves holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Calculator # has 36K ratings behind it against 381, so its average is the more settled of the two. Written reviews point the same way: 60% of Calculator #'s written reviews are positive against 91% of Solves's.

Calculator # ships an update every 2 months, Solves every 3 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Calculator # | Solves |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (36K ratings)](https://appshunter.io/ios/app/calculator/id458535080/reviews) | **[4.9 (381 ratings)](https://appshunter.io/ios/app/solves-calculator-for-all/id1394359548/reviews)** |
| Number of ratings | **36K** | 381 |
| Positive reviews | 60.0% of reviews | **90.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 57 MB | 82 MB |
| Requires iOS | **12.1** | 15 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [Oleg Barinov](https://appshunter.io/developer/1394359547) |

## What reviewers say

### Calculator #

[App page](https://appshunter.io/ios/app/calculator/id458535080)

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

**Highlights:** Math Photos Solver, Handwriting Recognition, AI Math Problem Solver, Mathematical Display, Equation Solvers, 2D Graphing, Algebraic Functions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Upgrade 1 Month | $1.49 | per month |
| PRO Upgrade 3 Months | $2.99 | per 3 months |
| PRO + Recognition 1 Month | $4.99 | per month |
| PRO + Recognition 3 Months | $11.99 | per 3 months |
| 250 AI Recognition & Queries | $0.99 | one-time |
| 600 AI Recognition & Queries | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Powerful functionality
- 💡 Helpful for math classes
- ⭐ Great for students
- 👌 Works like a real calculator

**What reviewers complain about**

- 🔍 Confusing interface after update
- 📢 Too many intrusive ads
- 💰 Paywall for advanced features
- 🐛 Incorrect calculations
- 🔇 Loud audio ads

**Reported bugs**

- Crashes when trying to use certain functions
- Handwriting recognition not working reliably
- Inability to input negative numbers

**Requested features**

- Add option to turn off animation
- Improve ad placement to avoid obstructing usage
- Provide more transparency on paid features


### Solves

[App page](https://appshunter.io/ios/app/solves-calculator-for-all/id1394359548)

A powerful and versatile calculator for all your Apple devices. Edit complex expressions, sync history across devices, and enjoy a clean, ad-free experience. Unlock advanced features like unit conversion and fraction support with an optional upgrade.

**Highlights:** Edit expressions without limitations, Instant results, Sync calculation history across devices, Unit conversion (currencies, physical units), Fraction support, Customizable themes

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip Option #1 | $0.99 | one-time |
| Tip Option #2 | $1.99 | one-time |
| Tip Option #3 | $4.99 | one-time |
| Tip Option #4 | $9.99 | one-time |
| Solves+ | $9.99 | one-time |
| Tip Option #5 | $19.99 | one-time |

**What reviewers like**

- 👍 Excellent calculator app
- 🚀 Smooth and responsive
- 🔒 No ads or data collection
- 💡 Useful features like history, comments, and unit conversions
- 👍 Clean and intuitive design

**What reviewers complain about**

- 🐛 Occasional crashes or bugs after updates
- 🐛 Issues with certain mathematical operations
- 🐛 Family sharing not working properly
- 🐛 Lag or performance issues on some devices
- 💡 Desire for more advanced features like fractions, base conversions

**Reported bugs**

- Crashes when pressing certain buttons
- Issues with parsing complex expressions
- Incorrect results for some calculations
- Problems with history clearing or syncing

**Requested features**

- Add support for fractions and mixed numbers
- Implement a widget for quick access
- Allow resizing the app window on Mac
- Provide more customization options
- Add support for Apple Watch


## Frequently asked questions

### Is Calculator # free?

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

### Is Solves free?

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

### Which has better reviews, Calculator # or Solves?

Solves is rated higher. Calculator # averages 4.6 out of 5 from 36K ratings, while Solves averages 4.9 from 381 ratings.

### Do Calculator # or Solves have ads?

Calculator # shows ads; Solves does not.

### Which is updated more often, Calculator # or Solves?

Calculator # ships an update every 2 months, and Solves every 3 weeks. Most recently, Calculator # was updated on September 24, 2026 and Solves on September 19, 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.*