Virtual Loop vs HeaderCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Virtual Loop
This utility app allows users to configure and monitor vehicle detection sensors. It enables exporting and importing sensor settings and provides visual and auditory feedback on sensor status.
- Configure vehicle detection sensors
- Export and import sensor settings
- Monitor sensor status visually
- Receive auditory alerts for sensor conditions
- Check sensor condition
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"Virtual Loop" is an App for setting and checking of the vehicle detection sensor OVS-02 series manufactured by OPTEX CO., LTD. It is possible to export the setting information of the sensor and import it with other units. The condition of the sensor could be checked by the color and sound on the App display. For details, please refer to the installation manual of OVS-02 series at the following link. URL:https://navi.optex.net/manual/09247/
HeaderCheck
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HeaderCheck turns raw email authentication headers into clear SPF, DKIM, and DMARC verdicts, entirely on your iPhone or iPad. Paste headers, open a sample, or import an .eml (Pro). No account. No upload. Analysis never leaves this device. WHY IT MATTERS Phishing often fakes the From line. Authentication results in the headers show whether the sending domain actually passed SPF, DKIM, and DMARC. HeaderCheck makes those fields readable. HOW TO USE • Paste raw headers from “Show original” / “View source” • Or forward as attachment and open the .eml (Pro) • Read Pass / Fail / Softfail badges and heuristic flags • Copy a summary or export a PDF (Pro) FREE Paste analysis, badges, copy summary, and a rolling history of your latest analyses. PRO (one-time) PDF export, unlimited history, and .eml import / Share Sheet open. HeaderCheck reports what is in the headers you provide. It does not guarantee a message is safe or malicious, and it is not legal or forensic advice.
Screenshots
Verdict
The clearest difference is in-app purchases: Virtual Loop at none against HeaderCheck's 1. Virtual Loop also leads on iOS requirement (12.0 vs 26.0). HeaderCheck's advantage is update cadence (every 2 days vs every 2 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. HeaderCheck sells 1 one-off in-app purchase. Virtual Loop asks for nothing beyond the download.
Virtual Loop ships an update every 2 months, HeaderCheck every 2 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.
| Parameter | Virtual Loop | HeaderCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | OPTEX CO., LTD. | Nicholas McLarty |
In-app purchases
Virtual Loop
No in-app purchases
HeaderCheck
- HeaderCheck Pro$2.99
