# Rohtang Permit vs Tanflow Authenticator

The clearest difference is update cadence: Tanflow Authenticator at daily against Rohtang Permit's every 6 months. Rohtang Permit's advantage is iOS requirement (13.0 vs 15.6). 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.

Rohtang Permit ships an update every 6 months, Tanflow Authenticator daily. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Rohtang Permit | Tanflow Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Size | 2 MB | 8 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [National Informatics Centre](https://appshunter.io/developer/1031138012) | [Tanflow Ventures Private Limited](https://appshunter.io/developer/1791564638) |

## What reviewers say

### Rohtang Permit

[App page](https://appshunter.io/ios/app/rohtang-permit/id1327307146)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tanflow Authenticator

[App page](https://appshunter.io/ios/app/tanflow-authenticator/id6740775461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rohtang Permit free?

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

### Is Tanflow Authenticator free?

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

### Do Rohtang Permit or Tanflow Authenticator have ads?

Neither Rohtang Permit nor Tanflow Authenticator shows ads.

### Which is updated more often, Rohtang Permit or Tanflow Authenticator?

Rohtang Permit ships an update every 6 months, and Tanflow Authenticator daily. Most recently, Rohtang Permit was updated on September 10, 2026 and Tanflow Authenticator on September 17, 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.*