SEMA3 vs snapaa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SEMA3
Design and conduct smartphone-based survey research with this comprehensive software suite. It offers tools for creating and deploying ecological momentary assessments directly on mobile devices.
- Design survey research
- Conduct smartphone surveys
- Ecological momentary assessment
- Mobile survey deployment
- Research software suite
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SEMA (Smartphone Ecological Momentary Assessment) is a suite of software for designing and conducting smartphone-based survey research For more information, please visit https://sema3.com/
snapaa
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Our barcode scanner app delivers fast, accurate results using your device’s camera. Designed for simplicity and speed, it supports multiple barcode formats and works seamlessly for shopping, inventory, and everyday use. Fast and reliable scanning Supports QR codes & common barcode formats Clean and user-friendly interface No complicated setup—just scan and go Note: Payment will be charged to your iTunes account at confirmation of purchase. Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after purchase. Read our terms of service and Privacy Policy for more information. Term of Use: https://snapaa.netlify.app/terms-of-service Privacy Policy: https://snapaa.netlify.app/privacy-policy EULA: https://snapaa.netlify.app/eula
Screenshots
Verdict
The clearest difference is iOS requirement: snapaa at 13.0 against SEMA3's 15.1. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | SEMA3 | snapaa |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (7 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Sinnott | LAYLA EL-ROZZ |
In-app purchases
SEMA3
No in-app purchases
snapaa
No in-app purchases









