BBX ECO2 vs Unmark
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
BBX ECO2
Read full descriptionHide full description
The BBX ECO2 is a monitoring system that helps managers, engineers and operators to estimate CO2 emissions generated within the furnace and improve operation by analyzing and giving recommendations to avoid excessive CO2 generation.
Unmark
Read full descriptionHide full description
Copy an answer from ChatGPT, Claude or Gemini. Tap Paste in Unmark and get real headings, bold text, lists, tables and code, instead of stray asterisks and pound signs, ready to go into Gmail, Word, Google Docs, Slack, Notion or Pages. Every AI chat writes in Markdown. Almost nowhere you paste it understands Markdown. Unmark converts on your device, in under a second, so the formatting survives the trip. HOW IT WORKS Open Unmark and tap Paste. No permission prompt, no setup. Check the preview, then copy it back as rich text and paste into your email, document or chat. Nothing copied yet? Tap Try an Example to see it work first. FROM ANY APP, NOT JUST THIS ONE Select any text on the page, tap Share, choose Unmark, and copy it straight from the share sheet, without opening the app at all. WHAT CONVERTS Headings, bold, italic, strikethrough, links, bulleted and numbered lists (nested), block quotes, inline code and fenced code blocks, and horizontal rules. All rendered on device, nothing sent anywhere. UNMARK PRO (one-time purchase) - Real tables, not rows of dashes - Editorial and Compact styles, in addition to Clean - Reverse conversion: turn rich text back into Markdown for your next prompt - Export straight to Word (.docx), PDF, Rich Text (.rtf), HTML or Markdown - A Shortcuts action for your own automations - Also unlocks auto-convert and a global hotkey on Mac One purchase unlocks Pro on your iPhone, iPad and Mac. No subscription. No account to create. No ads. PRIVATE BY DESIGN Conversion happens entirely on your device. What you paste and what you copy back never leaves your phone. Core conversion needs no internet connection; buying Pro and basic app analytics do, like any App Store app. Also available on Mac, where Unmark lives quietly in your menu bar. Unmark is built by Curato Labs.
Screenshots
Verdict
The clearest difference is in-app purchases: BBX ECO2 at none against Unmark's 1. BBX ECO2 also leads on iOS requirement (13.0 vs 17.0). Unmark's advantage is update cadence (every 2 weeks vs every 40 months). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Unmark sells 1 one-off in-app purchase. BBX ECO2 asks for nothing beyond the download.
BBX ECO2 ships an update every 40 months, Unmark every 2 weeks. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.
| Parameter | BBX ECO2 | Unmark |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 40 months | Every 2 weeks โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 11 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | AMI Automation LLC | Tien Dat Nguyen |
In-app purchases
BBX ECO2
No in-app purchases
Unmark
- Unmark Pro$4.99









