# Sriggle Authenticator vs IGTM

The clearest difference is update cadence: Sriggle Authenticator at every 10 days against IGTM's every 12 months. IGTM's advantage is iOS requirement (10.0 vs 12.2). 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.

Sriggle Authenticator ships an update every 10 days, IGTM every 12 months. Both last shipped on September 12, 2026.

## The numbers

| Metric | Sriggle Authenticator | IGTM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 12 months |
| Size | 73 MB | 44 MB |
| Requires iOS | 12.2 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sriggle Tech Private Limited](https://appshunter.io/developer/1578648454) | [Reed Exhibitions Ltd](https://appshunter.io/developer/540373170) |

## What reviewers say

### Sriggle Authenticator

[App page](https://appshunter.io/ios/app/sriggle-authenticator/id1578648452)

**In-app purchases:** none


### IGTM

[App page](https://appshunter.io/ios/app/igtm/id6736346646)

**In-app purchases:** none


## Frequently asked questions

### Is Sriggle Authenticator free?

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

### Is IGTM free?

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

### Do Sriggle Authenticator or IGTM have ads?

Neither Sriggle Authenticator nor IGTM shows ads.

### Which is updated more often, Sriggle Authenticator or IGTM?

Sriggle Authenticator ships an update every 10 days, and IGTM every 12 months. Most recently, Sriggle Authenticator was updated on September 12, 2026 and IGTM on September 12, 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.*