# CE5 Contact vs Potential Converter

The clearest difference is price: Potential Converter at Free against CE5 Contact's $9.99. Potential Converter also leads on rating (5.0 vs 3.6). CE5 Contact's advantage is update cadence (monthly vs every 6 months) and ratings volume (205 vs 1). On ads, in-app purchases and monetization model there is nothing between them.

Potential Converter is free to download; CE5 Contact costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Potential Converter holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: CE5 Contact has 205 ratings behind it against 1, so its average is the more settled of the two.

CE5 Contact ships an update monthly, Potential Converter every 6 months. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CE5 Contact | Potential Converter |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.6 (205 ratings)](https://appshunter.io/ios/app/ce5-contact/id1499236474/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/potential-converter/id6760157743/reviews)** |
| Number of ratings | **205** | 1 |
| Positive reviews | 39.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | Free |
| Best chart rank | **#21** | — |
| Size | 75 MB | 0 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Sirius Technology Advanced Research](https://appshunter.io/developer/606702442) | [Dianzhao Lin](https://appshunter.io/developer/1882906950) |

## What reviewers say

### CE5 Contact

[App page](https://appshunter.io/ios/app/ce5-contact/id1499236474)

**Currently charting:** #21 Top Paid · Education, #171 Top Paid (US App Store)

This app guides users in initiating peaceful contact with extraterrestrial civilizations using established protocols. It offers training materials, step-by-step guidance, and tools to connect with like-minded individuals. Features include offline access to core processes and a library of resources.

**Highlights:** Official training materials, Step-by-step CE5 process guide, Networking for like-minded individuals, Comprehensive equipment list, Extensive media library, Offline mode for core processes

**In-app purchases:** none

**What reviewers like**

- 🚀 Awesome!!
- 🚀 So far so good!
- 🚀 Great app
- 🚀 Spectacular
- 🚀 A must get App

**What reviewers complain about**

- 🐛 I can't log in!
- 🐛 Paid & can't log in
- 🐛 Does not load
- 🐛 Can't sign in
- 🐛 Couldn't create an account

**Reported bugs**

- Crop circle tones in contact don't play
- App is glitching, gets stuck or just closes
- Audio doesn't work when you push play
- Sounds don't play
- Meditations and recordings stopped working after a week

**Requested features**

- Messaging Notification option will facilitate networking effectiveness
- Create a 'create a post' or 'create a group' section on the app
- Add a message board for local CE5 groups
- Allow users to change their account username, email and mobile number
- Improve profile features for the Network section


### Potential Converter

[App page](https://appshunter.io/ios/app/potential-converter/id6760157743)

This tool helps electrochemists, researchers, and students quickly convert measured potentials between various reference electrode scales. It supports 19 common electrodes and provides educational information, working offline with an intuitive interface.

**Highlights:** Convert between 19 common reference electrodes, Instant, real-time conversions, Supports SHE, Ag/AgCl, SCE, MSE, and more, Educational information on reference electrodes, Clean, intuitive interface, Offline functionality, Copy results with one tap

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

**In-app purchases:** none


## Frequently asked questions

### Is CE5 Contact free?

CE5 Contact costs $9.99, with no in-app purchases.

### Is Potential Converter free?

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

### Which has better reviews, CE5 Contact or Potential Converter?

Potential Converter is rated higher. CE5 Contact averages 3.6 out of 5 from 205 ratings, while Potential Converter averages 5.0 from 1 ratings.

### Do CE5 Contact or Potential Converter have ads?

Neither CE5 Contact nor Potential Converter shows ads.

### Which is updated more often, CE5 Contact or Potential Converter?

CE5 Contact ships an update monthly, and Potential Converter every 6 months. Most recently, CE5 Contact was updated on October 21, 2026 and Potential Converter on October 5, 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.*