# Opty vs Keylet

The clearest difference is in-app purchases: Opty at none against Keylet's 3. Keylet's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Keylet sells 3 in-app purchases, starting at $2.99 per month. Opty asks for nothing beyond the download.

Opty ships an update every 2 weeks, Keylet every 5 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Opty | Keylet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Size | 23 MB | 108 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Abhishek Diwakar](https://appshunter.io/developer/1859662850) | [Studio Fifteen](https://appshunter.io/developer/1470310980) |

## What reviewers say

### Opty

[App page](https://appshunter.io/ios/app/opty-2fa-authenticator/id6756269442)

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

**In-app purchases:** none


### Keylet

[App page](https://appshunter.io/ios/app/keylet-2fa-authenticator/id6779371596)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keylet Pro – Monthly | $2.99 | per month |
| Keylet Pro – Yearly | $12.99 | per year |
| Keylet Pro – Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is Opty free?

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

### Is Keylet free?

Keylet is free to download, with in-app purchases available.

### Do Opty or Keylet have ads?

Neither Opty nor Keylet shows ads.

### Which is updated more often, Opty or Keylet?

Opty ships an update every 2 weeks, and Keylet every 5 days. Most recently, Opty was updated on October 7, 2026 and Keylet 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.*