Chekkit vs ComPhysics Green UV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chekkit
This app provides local businesses with a unified platform for customer communication, lead management, and payment processing. It offers a dedicated texting number, website chat integration, and tools for collecting customer reviews.
- Dedicated texting number
- Website chat integration
- Lead tracking
- Review collection
- Payment processing
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Chekkit gives your business a dedicated texting number, website chat, lead tracking, review collection, and payments — in one app.
ComPhysics Green UV
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IMPORTANT: This app requires the ComPhysics CP-UV01 UV Indicator and CP-UV01-SA smartphone accessory. Without the dedicated optical hardware, the displayed values are not valid UV measurements. ComPhysics Green UV uses the iPhone camera to analyze the green visible emission produced by the CP-UV01 optical system. It provides a relative UV signal called CRU (ComPhysics Relative UV) and helps you compare conditions, save results, and observe changes over time. KEY FEATURES • Real-time CRU display • Movable circular Region of Interest • Reference-versus-sample comparison • Relative effective UV transmittance and blocking display • Time recording with graph • Photo and reading capture • Sample names and notes • Local export of CSV, JSON, JPEG, and PDF files • Optional location and device-orientation data for records • Korean, English, Japanese, and Simplified Chinese PRIVACY Camera frames and measurement data are processed on the device. The app does not include advertising or third-party analytics SDKs and does not automatically upload measurement data to ComPhysics. Files leave the app only when you choose to share or export them. MEASUREMENT NOTICE ComPhysics Green UV is a relative comparison tool. It is not an absolute UV irradiance meter, certified spectroradiometer, medical device, safety-certification system, or official spectral transmittance instrument. Results depend on the iPhone model, selected camera, settings, accessory alignment, ambient light, distance, angle, source spectrum, and measurement geometry. A low reading does not prove that a UV source is safe.
Screenshots
Verdict
Chekkit and ComPhysics Green UV are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Chekkit | ComPhysics Green UV |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (12 ratings) — better | — |
| Positive reviews | 93.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 80 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Chekkit | ComPhysics |
In-app purchases
Chekkit
No in-app purchases
ComPhysics Green UV
No in-app purchases
Questions
Is Chekkit free?
Is ComPhysics Green UV free?
Do Chekkit or ComPhysics Green UV have ads?
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