# MobilePKI vs Cipher

The clearest difference is update cadence: MobilePKI at every 4 weeks against Cipher's every 11 months. MobilePKI also leads on iOS requirement (8.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MobilePKI ships an update every 4 weeks, Cipher every 11 months. The most recent releases landed on September 25, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MobilePKI | Cipher |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 11 months |
| Size | 6 MB | 22 MB |
| Requires iOS | **8.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Changing Information Technology Inc.](https://appshunter.io/developer/329855504) | [App4Life Sweden AB](https://appshunter.io/developer/507125048) |

## What reviewers say

### MobilePKI

[App page](https://appshunter.io/ios/app/mobilepki/id529705563)

**In-app purchases:** none


### Cipher

[App page](https://appshunter.io/ios/app/cipher-decode-any-language/id6742792378)

**In-app purchases:** none


## Frequently asked questions

### Is MobilePKI free?

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

### Is Cipher free?

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

### Do MobilePKI or Cipher have ads?

Neither MobilePKI nor Cipher shows ads.

### Which is updated more often, MobilePKI or Cipher?

MobilePKI ships an update every 4 weeks, and Cipher every 11 months. Most recently, MobilePKI was updated on September 25, 2026 and Cipher on October 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.*