# Calc vs MindKeep Pro

The clearest difference is review sentiment: MindKeep Pro at 100% against Calc's 50%. MindKeep Pro also leads on rating (5.0 vs 3.0) and update cadence (monthly vs every 10 months). Calc's advantage is in-app purchases (none vs 11) and iOS requirement (12.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. MindKeep Pro sells 11 one-off in-app purchases. Calc asks for nothing beyond the download.

MindKeep Pro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews point the same way: 50% of Calc's written reviews are positive against 100% of MindKeep Pro's.

Calc ships an update every 10 months, MindKeep Pro monthly. The most recent releases landed on September 14, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Calc | MindKeep Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/calc-50/id1193016704/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/mindkeep-pro/id6479972371/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 38 MB | 37 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [David Smith](https://appshunter.io/developer/1193016703) | [Joseph Cimo](https://appshunter.io/developer/1737725370) |

## What reviewers say

### Calc

[App page](https://appshunter.io/ios/app/calc-50/id1193016704)

This app offers a high-precision scientific calculator with over 50 digits of accuracy. It supports advanced mathematical functions, complex arithmetic, and programmable features for derivatives, integrals, and root finding.

**Highlights:** High-precision calculations (50+ digits), Extensive mathematical functions, Programmable features, Complex arithmetic, Graphing capabilities, Derivative and integral calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### MindKeep Pro

[App page](https://appshunter.io/ios/app/mindkeep-pro/id6479972371)

This app redefines personal organization with a fluid interface for capturing ideas, managing reminders, and journaling. It offers seamless syncing across devices, advanced task management, and biometric security for a focused and inspired experience.

**Highlights:** Liquid Glass interface, Handwriting and OCR capture, Seamless iCloud Sync, Smart Notes with color-coding and tags, Advanced reminders and notifications, Biometric security (Face ID/Touch ID), Journaling with customization

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindKeep Snap | $0.99 | one-time |
| Recurring Reminders | $0.99 | one-time |
| Customization | $0.99 | one-time |
| More Reminders | $0.99 | one-time |
| More Lists | $0.99 | one-time |
| MindKeep Pro Journal | $0.99 | one-time |
| More Sticky Notes | $0.99 | one-time |
| MindWriter Bundle | $1.99 | one-time |
| Reminder Bundle | $1.99 | one-time |
| Customizer Bundle | $1.99 | one-time |
| Mega MindKeep Pro Bundle | $3.99 | one-time |


## Frequently asked questions

### Is Calc free?

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

### Is MindKeep Pro free?

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

### Which has better reviews, Calc or MindKeep Pro?

MindKeep Pro is rated higher. Calc averages 3.0 out of 5 from 2 ratings, while MindKeep Pro averages 5.0 from 7 ratings.

### Do Calc or MindKeep Pro have ads?

Neither Calc nor MindKeep Pro shows ads.

### Which is updated more often, Calc or MindKeep Pro?

Calc ships an update every 10 months, and MindKeep Pro monthly. Most recently, Calc was updated on September 14, 2026 and MindKeep Pro on June 1, 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.*