---
title: "ManageBac Grade Calculator – Chrome extension stats, history and permissions"
description: "577 users, rated 5.00 by 3 people. Version 1.1, updated 2025-12-16. Requests 1 permission."
url: "https://extensiontracker.com/extension/jdannanlkioifobgfkcpfmlddiamehcm"
---

# ManageBac Grade Calculator

Live in the Chrome Web Store.

- Users: 577
- Rating: 5.00 from 3 ratings
- Last checked: 2026-09-27 03:30 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #31,708 of 264,702 live extensions
- Rank in Education: #933 of 11,063

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Automatically calculates cumulative percentage from ManageBac grades

- Extension ID: `jdannanlkioifobgfkcpfmlddiamehcm`
- Developer: [None](https://extensiontracker.com/developer/ue76a95d99a6a9ef490e731af81b5c3af)
- Category: [Productivity › Education](https://extensiontracker.com/category/productivity/education)
- First published: 2025-11-27
- Last updated: 2025-12-16
- Version: `1.1`
- Size: 6.98 KiB
- Minimum Chrome: 88
- Languages (1): English
- Chrome Web Store: <https://chromewebstore.google.com/detail/managebac-grade-calculato/jdannanlkioifobgfkcpfmlddiamehcm>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=jdannanlkioifobgfkcpfmlddiamehcm>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 577 | 5.00 | 3 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

### Sites where it runs scripts

- `*://*.managebac.com/*`: managebac.com and its subdomains

### Browser features

- `activeTab`: The tab you're on, only after you click the extension

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [HelpMeBudget](https://extensiontracker.com/extension/kkhlhdipahcnihfidkmlcnbiehalpcnn) | 5 | 5.00 | 2 | Workflow & Planning |

All 2 extensions by [None](https://extensiontracker.com/developer/ue76a95d99a6a9ef490e731af81b5c3af).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-27 03:30 UTC; next check around 2026-10-14.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “ManageBac Grade Calculator” (jdannanlkioifobgfkcpfmlddiamehcm). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/jdannanlkioifobgfkcpfmlddiamehcm. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_jdannanlkioifobgfkcpfmlddiamehcm,
  title   = {ManageBac Grade Calculator (jdannanlkioifobgfkcpfmlddiamehcm)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/jdannanlkioifobgfkcpfmlddiamehcm},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/jdannanlkioifobgfkcpfmlddiamehcm>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.