# Engineering Calculator vs Memorize By Heart

The clearest difference is review sentiment: Memorize By Heart at 76% against Engineering Calculator's 0%. Memorize By Heart also leads on price (Free vs $1.99) and rating (4.8 vs 1.0). Engineering Calculator's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Memorize By Heart is free to download; Engineering Calculator costs $1.99 up front. Memorize By Heart sells 4 in-app purchases, starting at $4.99 per month. Engineering Calculator asks for nothing beyond the download.

Memorize By Heart holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Memorize By Heart has 2.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Engineering Calculator's written reviews are positive against 76% of Memorize By Heart's.

Engineering Calculator ships an update every 30 months, Memorize By Heart fortnightly. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Engineering Calculator | Memorize By Heart |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/engineering-calculator/id1297957037/reviews) | **[4.8 (2.4K ratings)](https://appshunter.io/ios/app/memorize-by-heart/id1436935583/reviews)** |
| Number of ratings | 1 | **2.4K** |
| Positive reviews | 0.0% of reviews | **76.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 30 months | **Fortnightly** |
| Monetization | Paid | **Freemium** |
| Size | 7 MB | 126 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [loay setrak](https://appshunter.io/developer/923932983) | [Craig Walker](https://appshunter.io/developer/1278034350) |

## What reviewers say

### Engineering Calculator

[App page](https://appshunter.io/ios/app/engineering-calculator/id1297957037)

This application provides a comprehensive suite of 59 engineering calculators across civil, electrical, and mechanical disciplines. It includes formulas and descriptions for each calculator, along with convenient copy and clear functions.

**Highlights:** 59 engineering calculators, Civil, Electrical, Mechanical categories, Formulas included for each calculator, Descriptions for each calculator, Copy and clear button functionality

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

**In-app purchases:** none


### Memorize By Heart

[App page](https://appshunter.io/ios/app/memorize-by-heart/id1436935583)

This app helps you learn and retain any text, from poems and scripts to study material. It uses proven techniques like letter removal, fill-in-the-blanks, and spaced repetition to strengthen recall and long-term memory. Collaborate with others for added motivation and accountability.

**Highlights:** Letter and word removal for familiarity, Fill-in-the-blank and unscramble exercises, Spaced repetition for long-term memory, Group memorization and progress tracking, Text-to-speech for auditory learning, Multi-language support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $4.99 | per month |
| 6 months | $9.99 | per 6 months |
| 12 months | $19.99 | per year |
| Lifetime | $49.99 | one-time |

**What reviewers like**

- 👍 Helpful for memorization
- 🚀 Efficient memorization process
- 💡 Variety of memorization techniques
- 👍 Easy to use
- 👍 Good for studying and learning

**What reviewers complain about**

- 🐛 App crashes or bugs
- 🔒 Paywall limits free features
- 🔒 Lack of customization options
- 🐛 Voice recognition issues
- 🐛 Syncing problems across devices

**Reported bugs**

- App crashes or freezes
- Syncing issues between devices
- Slider feature not working properly with non-English text
- Save button hidden behind keyboard

**Requested features**

- Add more free features
- Improve voice recognition accuracy
- Allow reordering and organizing of memorizations
- Provide more customization options
- Add support for more languages


## Frequently asked questions

### Is Engineering Calculator free?

Engineering Calculator costs $1.99, with no in-app purchases.

### Is Memorize By Heart free?

Memorize By Heart is free to download, with in-app purchases available.

### Which has better reviews, Engineering Calculator or Memorize By Heart?

Memorize By Heart is rated higher. Engineering Calculator averages 1.0 out of 5 from 1 ratings, while Memorize By Heart averages 4.8 from 2.4K ratings.

### Do Engineering Calculator or Memorize By Heart have ads?

Memorize By Heart shows ads; Engineering Calculator does not.

### Which is updated more often, Engineering Calculator or Memorize By Heart?

Engineering Calculator ships an update every 30 months, and Memorize By Heart fortnightly. Most recently, Engineering Calculator was updated on September 9, 2026 and Memorize By Heart on September 21, 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.*