# IITB SSO vs Visual Displacement Meter

The clearest difference is update cadence: IITB SSO at every 6 days against Visual Displacement Meter's fortnightly. IITB SSO also leads on iOS requirement (9.0 vs 15.0). 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.

IITB SSO ships an update every 6 days, Visual Displacement Meter fortnightly. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | IITB SSO | Visual Displacement Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Fortnightly |
| Size | 14 MB | 82 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Indian Institute of Technology Bombay](https://appshunter.io/developer/1534551586) | [Inteagle Information Technology(Dongguan) Co., Ltd.](https://appshunter.io/developer/1720865930) |

## What reviewers say

### IITB SSO

[App page](https://appshunter.io/ios/app/iitb-sso/id1536312549)

**Features:** macOS Compatibility

**In-app purchases:** none


### Visual Displacement Meter

[App page](https://appshunter.io/ios/app/visual-displacement-meter/id6749835043)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IITB SSO free?

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

### Is Visual Displacement Meter free?

Visual Displacement Meter is free to download, with no in-app purchases.

### Do IITB SSO or Visual Displacement Meter have ads?

Neither IITB SSO nor Visual Displacement Meter shows ads.

### Which is updated more often, IITB SSO or Visual Displacement Meter?

IITB SSO ships an update every 6 days, and Visual Displacement Meter fortnightly. Most recently, IITB SSO was updated on October 25, 2026 and Visual Displacement Meter on October 7, 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.*