# Spectra ESS App vs Co

The clearest difference is iOS requirement: Co at 13.0 against Spectra ESS App's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Spectra ESS App | Co |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 24.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | — |
| Size | 68 MB | 79 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Spectra Technovision(India) Private Limited](https://appshunter.io/developer/1286305517) | [Qahtan Salmen](https://appshunter.io/developer/1456751162) |

## What reviewers say

### Spectra ESS App

[App page](https://appshunter.io/ios/app/spectra-ess-app/id1393935321)

Manage your attendance, apply for leave, and track outdoor duties through a unified platform. Receive instant notifications on application status. Integrates with existing attendance management software for a seamless experience.

**Highlights:** Monitor attendance records, Apply for leave, Request tour/outdoor duty, Approve/reject applications, Instant notifications, Unified platform

**Features:** Vision Pro support

**In-app purchases:** none


### Co

[App page](https://appshunter.io/ios/app/co-working-client/id6745311189)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spectra ESS App free?

Spectra ESS App is free to download, with no in-app purchases.

### Is Co free?

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

### Do Spectra ESS App or Co have ads?

Neither Spectra ESS App nor Co shows ads.

### Which is updated more often, Spectra ESS App or Co?

Spectra ESS App ships an update every 2 weeks, and Co every 2 weeks. Most recently, Spectra ESS App was updated on October 29, 2026 and Co on October 28, 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.*