Ettend vs RARE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ettend
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Ettend is a comprehensive event networking app that allows attendees to connect with people ahead of the event. You can seek out people you’d like to meet prior to an event. Attendees get access to attendee directory and also features private messaging and a meeting scheduler tool. This allows you to arrange your day in advance, maximising your networking opportunities. It also allows attendees to share digital business cards, ensuring an easier route to a post event relationship. This app allows attendees to create detailed bios and provides contact-less information sharing in Quick Response Code form. Attendees need to login with the provided credentials and can scan other attendees’ QR codes to get their information and share their QR code to share his or her information.
RARE
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The Rapid Assay Result Ecosystem (RARE) is designed to provide a comprehensive solution for analyzing lateral flow test results through an integrated platform comprising a mobile app and web portal. The mobile app, integrating the Novarum Reader SDK, captures images using a smartphone camera, compares them to pre-configured geometric models specific to the assay format, and measures the output from the assay to extract peak intensities. Method configurations can be delivered ‘over the air’ from the backend web service to the mobile app, enabling use with specific assay formats. Mobile App: - Available for download by authorized customers. - Integrates the Novarum Reader SDK, an in vitro diagnostic (IVD) analyzer, to capture data from assays and upload it to the backend. - Functions as a laboratory immunoassay analyzer, measuring the output from the assay and extracting peak intensities. - Captures images using a smartphone camera and compares them to pre-configured geometric models specific to the assay format. - Rejects images that do not contain the assay or are insufficiently oriented or lit to ensure satisfactory measurements. - Allows users to choose Methods (reader configuration and housing model) for scanning test assays. - Dynamically loads Methods from the portal based on user selections. - Returns all processed image profiles to the portal for storage and display. Web Portal: - Acts as a configuration management tool where users can store, manage, and apply different configurations. - Enables users to register after downloading the app. - Provides functionality to display results from tests acquired by the app. - Allows users to create and manage custom Methods for the reader configuration and assign specific tests assay housings. - Users can reprocess results with different configurations to apply “what if” scenarios to optimise during the development.
Screenshots
Verdict
The clearest difference is update cadence: Ettend at every 2 weeks against RARE's every 4 months. Ettend also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
Ettend ships an update every 2 weeks, RARE every 4 months. The most recent releases landed on September 13, 2026 and September 18, 2026 respectively.
| Parameter | Ettend | RARE |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 49 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Valiant and Company Pvt. Ltd | Novarum DX |
In-app purchases
Ettend
No in-app purchases
RARE
No in-app purchases









