# Converter and Calculator vs Sudo Encrypt

The clearest difference is price: Sudo Encrypt at Free against Converter and Calculator's $2.99. Sudo Encrypt also leads on review sentiment (100% vs 90%). Converter and Calculator's advantage is ratings volume (267 vs 6). On rating, update cadence, ads and in-app purchases there is nothing between them.

Sudo Encrypt is free to download; Converter and Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Converter and Calculator against 4.7 for Sudo Encrypt. That said, the two scores are not equally well evidenced: Converter and Calculator has 267 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 90% of Converter and Calculator's written reviews are positive against 100% of Sudo Encrypt's.

Converter and Calculator ships an update every 2 weeks, Sudo Encrypt every 9 days. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Converter and Calculator | Sudo Encrypt |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.7 (267 ratings)](https://appshunter.io/ios/app/converter-and-calculator/id741771917/reviews)** | [4.7 (6 ratings)](https://appshunter.io/ios/app/sudo-encrypt/id1506468136/reviews) |
| Number of ratings | **267** | 6 |
| Positive reviews | 90.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 9 MB | 2 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cider Software LLC](https://appshunter.io/developer/465180756) | [Shunzhe Ma](https://appshunter.io/developer/1052286218) |

## What reviewers say

### Converter and Calculator

[App page](https://appshunter.io/ios/app/converter-and-calculator/id741771917)

This app functions as a unit and currency converter, offering over 500 units across 29 categories. It features a full-screen calculator with memory functions and allows for extensive customization of displayed units and their order.

**Highlights:** Unit and currency conversion, Full-screen calculator, Customizable units and categories, In-line calculations, Convert multiple units simultaneously, Automatic regional formatting

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 🚀 Fast and quick conversions
- 💡 Stores last input and units
- 💡 Displays results in all units
- 💡 Highly customizable

**What reviewers complain about**

- 🐛 Currency updates needed daily
- 🐛 Missing imperial gallons
- 🐛 Euro default currency hard to change
- 🐛 USD to MD Peso not an option
- 🐛 Units and numbers lined up wrong

**Reported bugs**

- App not updating calculations daily
- Conversion table setup is off by one line
- No Copy/Paste functionality

**Requested features**

- Support today's widget
- Add Vietnamese language
- Create custom units
- Add a search bar


### Sudo Encrypt

[App page](https://appshunter.io/ios/app/sudo-encrypt/id1506468136)

Securely encrypt and decrypt messages using RSA encryption. Generate your own keypairs, import others' public keys, and sign/verify message signatures. Seamlessly integrate with iMessage for easy sharing of encrypted content.

**Highlights:** Generate RSA keypairs locally, Encrypt messages with public keys, Decrypt messages with private keys, Sign and verify message signatures, iMessage extension for seamless integration, Embed encrypted messages as iMessage objects

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Converter and Calculator free?

Converter and Calculator costs $2.99, with no in-app purchases.

### Is Sudo Encrypt free?

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

### Which has better reviews, Converter and Calculator or Sudo Encrypt?

Converter and Calculator is rated higher. Converter and Calculator averages 4.7 out of 5 from 267 ratings, while Sudo Encrypt averages 4.7 from 6 ratings.

### Do Converter and Calculator or Sudo Encrypt have ads?

Neither Converter and Calculator nor Sudo Encrypt shows ads.

### Which is updated more often, Converter and Calculator or Sudo Encrypt?

Converter and Calculator ships an update every 2 weeks, and Sudo Encrypt every 9 days. Most recently, Converter and Calculator was updated on October 13, 2026 and Sudo Encrypt on October 4, 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.*