# FlowCrypt vs Oakbay Think Tank

The clearest difference is update cadence: Oakbay Think Tank at every 2 months against FlowCrypt's every 4 months. 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.

FlowCrypt ships an update every 4 months, Oakbay Think Tank every 2 months. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | FlowCrypt | Oakbay Think Tank |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/flowcrypt-encrypted-email/id1591754995/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 28 MB | 45 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [FlowCrypt a. s.](https://appshunter.io/developer/1591462991) | [Oakbay Think Tank Inc.](https://appshunter.io/developer/1700358711) |

## What reviewers say

### FlowCrypt

[App page](https://appshunter.io/ios/app/flowcrypt-encrypted-email/id1591754995)

Easily encrypt your emails and attachments with PGP for enhanced privacy on Gmail. This app simplifies end-to-end encryption, making it accessible even without technical knowledge of cryptography. Secure your communications and files effortlessly.

**Highlights:** End-to-end PGP email encryption, Secure attachment encryption, Key generation and secure storage, Encrypted drafts, Password-protected encrypted messages, Compatibility with OpenPGP standards

**Features:** macOS Compatibility

**In-app purchases:** none


### Oakbay Think Tank

[App page](https://appshunter.io/ios/app/oakbay-think-tank/id6456224025)

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

**In-app purchases:** none


## Frequently asked questions

### Is FlowCrypt free?

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

### Is Oakbay Think Tank free?

Oakbay Think Tank is free to download, with no in-app purchases.

### Do FlowCrypt or Oakbay Think Tank have ads?

Neither FlowCrypt nor Oakbay Think Tank shows ads.

### Which is updated more often, FlowCrypt or Oakbay Think Tank?

FlowCrypt ships an update every 4 months, and Oakbay Think Tank every 2 months. Most recently, FlowCrypt was updated on October 24, 2026 and Oakbay Think Tank 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.*