Vision Smarts vs OpenPPG
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Vision Smarts
Read full descriptionHide full description
Vision Smart's industrial grade barcode scanner can instantly read the following formats: EAN-13, UPC-A, EAN-8, UPC-E, EAN+2, EAN+5, Code 128, Code 39, Code 93, ITF, Code 25, Codabar, Telepen, QR codes, DataMatrix, and all GS1 Databar versions. Scan just one barcode or a batch of up to 20. Full screen scan, framed scan, or red line scan. Share the results with the standard action sheet (message, email, copy, save, send to other apps, etc.) At Vision Smarts we have been developing, refining, and optimizing barcode reader software since the early days of the App Store. The result is a set of powerful image processing algorithms that can quickly read barcodes in the most challenging conditions: damaged or faded barcodes, small or low-resolution print, low light, reflective or wrinkled surfaces, steep angles, etc. Our software libraries power our own apps. Many well-known brands in the retail, logistics, consumer goods, banking, telecom, food, and software industries license our white label SDK to build reliable barcode scanning apps for their employees and customers . Please check out our web site at www.visionsmarts.com and do not hesitate to contact us for more information.
OpenPPG
Read full descriptionHide full description
OpenPPG is a free, research-oriented iOS application designed to close the gap in accessible and transparent PPG data acquisition. Built by researchers for researchers, it enables recording of raw, high-quality photoplethysmography (PPG) signals directly from the smartphone camera, with full export for scientific analysis. Key Features โข Raw signal access โ capture unprocessed PPG waveforms with complete control over export (CSV format). โข Flexible preprocessing โ raw signals, basic and advanced filtering, signal quality assessment or fully calculated metrics in one app to enhance your research โข Feature extraction โ access directly over 11 automatically calculated temporal and morphological metrics without need for advanced signal processing โข Metadata & annotations โ mark events while taking measurements in real time and customise forms to fit your study protocol โข Explainable pipeline โ reproducible acquisition process with transparent documentation to ensure research reliability. Why OpenPPG? Most mobile tools restrict access to raw data, hide acquisition details, or require payment. OpenPPG removes these barriers by providing a free, standardised, and reproducible way to acquire PPG signals. It supports innovation in signal processing, machine learning, and digital biomarker discovery. Important: OpenPPG is intended solely for research purposes. It is not a medical device and must not be used for diagnosis, treatment, or patient self-monitoring.
Screenshots
Verdict
The clearest difference is update cadence: OpenPPG at monthly against Vision Smarts's every 4 months. Vision Smarts's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.6). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Vision Smarts ships an update every 4 months, OpenPPG monthly. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.
| Parameter | Vision Smarts | OpenPPG |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Monthly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 12.0 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 10 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Vision Smarts | research app |
In-app purchases
Vision Smarts
No in-app purchases
OpenPPG
No in-app purchases









