# SEMA3

> Software for designing and conducting smartphone-based survey research. (iPhone/iPad app by Richard Sinnott.)

- Source: https://appshunter.io/ios/app/sema3/id1427120118 (this page in markdown: same URL + `.md`)
- Developer: [Richard Sinnott](https://appshunter.io/developer/1080236817)
- Category: Productivity, Education
- Price: Free
- Rating: 3.43/5 from 7 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 38 MB
- Languages: English
- Released: 2018-09-27
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sema3/id1427120118/reviews.md

## What is SEMA3?

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/

## Key features

- Design survey research
- Conduct smartphone surveys
- Ecological momentary assessment
- Mobile survey deployment
- Research software suite

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/sema3/id1427120118/reviews.md

### 5/5 — Good for EMA Research

*2022-04-07, version 1.3.0*

Nice App for conducting EMA research!

### 4/5 — kinda glitchy

*2021-09-18, version 1.3.0*

if you’re having trouble logging out, Press App Version 1.2.5 (40) a bunch of times until a pop-up appears asking to log out! A very weird system but it works!

### 1/5 — Can’t log out and use different ID

*2021-05-30, version 1.3.0*

What is the point

### 2/5 — Nice try, but with problems

*2020-12-13, version 1.2.5*

Although the alarm and the banner tell me to answer the questions of the study, by opening the App only a "you have on active studies" is to be read.

### 1/5 — Can’t logout to change participant ID

*2020-10-04, version 1.2.5*

I want to participate in another study using a different participant ID, but I can’t logout from within the app.

## Frequently asked questions about SEMA3

### What is SEMA3 used for?

SEMA3 is a software suite designed for creating and conducting smartphone-based survey research. It specifically supports ecological momentary assessments, allowing researchers to collect data directly from participants' phones.

### Is SEMA3 free to use?

Yes, SEMA3 is available for free. There are no costs associated with downloading or using the application for research purposes.

### What devices does SEMA3 support?

SEMA3 is supported on iPhone and iPod devices. It is designed to run on Apple's mobile operating systems.

### How often is SEMA3 updated?

The latest version of SEMA3 is 1.4.2, which was last updated on October 13, 2024. This indicates a relatively active development cycle for the application.

### What is the age rating for SEMA3?

SEMA3 has an age rating of 4+, meaning it is suitable for users of all ages. This is typical for productivity and research-oriented applications.

### Where can I find more information about SEMA3?

For more detailed information about SEMA3, its features, and how to use it for your research, you can visit the official website at https://sema3.com/.

### Does SEMA3 have ads?

No, SEMA3 does not contain advertisements. As a free productivity tool for research, it provides an ad-free experience for its users.

### What is the user rating for SEMA3?

SEMA3 has a user rating of 4.2 stars based on 5 ratings. This suggests that users generally have a positive experience with the application.

## Version history (last 5 releases)

### 1.5.2 — 2026-07-02

Bug fixes

### 1.5.1 — 2026-04-22

Fixed start survey crash

### 1.4.2 — 2024-10-13

Bug fixes and updated scheduling of notification events from mobile to server

### 1.4.1 — 2023-11-10

Fixed "text input" type questions from not showing characters

### 1.4.0 — 2023-09-07

Notification fixes

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## More apps by Richard Sinnott

- [NAPACApp](https://appshunter.io/ios/app/napacapp/id1100522972)
- [SWARM Mobile](https://appshunter.io/ios/app/swarm-mobile/id1293016428)
- [SWARM Challenge](https://appshunter.io/ios/app/swarm-challenge/id1400121756)
- [Daisy-PCOS](https://appshunter.io/ios/app/daisy-pcos/id1478379214)
- [My Exercise Messages](https://appshunter.io/ios/app/my-exercise-messages/id1529053965)

All apps by Richard Sinnott: https://appshunter.io/developer/1080236817

## Related topics

[sema](https://appshunter.io/ios/topics/sema)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*