# Calculator vs MemoLock

The clearest difference is in-app purchases: MemoLock at none against Calculator's 2. MemoLock also leads on ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator sells 2 in-app purchases, starting at $0.99 per month. MemoLock asks for nothing beyond the download.

Calculator ships an update every 3 months, MemoLock fortnightly. The most recent releases landed on September 27, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Calculator | MemoLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (579 ratings)](https://appshunter.io/ios/app/calculator-pro/id1538600973/reviews)** | — |
| Number of ratings | **579** | — |
| Positive reviews | 63.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 1 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appgeneration Software](https://appshunter.io/developer/386316599) | [Kisub Yun](https://appshunter.io/developer/1888932631) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-pro/id1538600973)

This app offers a versatile calculator with both basic and scientific functions. It includes advanced features like currency and unit conversions, customizable themes, and history tracking. Optimized for both portrait and landscape modes, it's designed for users needing precise calculations and conversions.

**Highlights:** Basic and scientific calculator, Currency converter, Unit converter, History and memory banks, Customizable themes, Portrait and landscape modes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| myCalc - Calculator (1 month) | $0.99 | per month |
| Remove ads | $3.99 | one-time |

**What reviewers like**

- 👍 Very easy and intuitive to use
- 💰 Free to use without mandatory purchases
- 🔄 Multiple calculator modes (simple and scientific)
- 💱 Currency conversion functionality
- 📊 Visible calculation history on screen

**What reviewers complain about**

- 📢 Excessive and intrusive advertisements
- 📢 Ads appear before showing calculation results
- 🐛 Percentage calculations incorrect
- 🐛 Decimal place handling errors in continued calculations
- 🐛 History feature not functioning properly

**Reported bugs**

- Percentage calculation produces incorrect results (100+19%=100.19 instead of 119)
- Decimal places cause confusion in continued calculations
- History feature does not display entered operations
- App freezes or requires restart after ads
- Cannot input negative values for temperature conversions

**Requested features**

- Support for negative values in temperature calculations
- Ability to add custom currencies to the list
- Clear history button or selective equation deletion
- Better instructions and user guidance
- Standard calculator number grid layout


### MemoLock

[App page](https://appshunter.io/ios/app/memolock/id6762044902)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is MemoLock free?

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

### Do Calculator or MemoLock have ads?

Calculator shows ads; MemoLock does not.

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

Calculator ships an update every 3 months, and MemoLock fortnightly. Most recently, Calculator was updated on September 27, 2026 and MemoLock on September 15, 2026.

---

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