---
title: "3E Smartphone Substudy - Reviews, Revenue and Downloads in South Africa | Apple App Store"
description: "Your participation in this study is completely voluntary. If you choose to participate, you will be asked to (1) download the 3E Smartphone Substudy app and allow sharing of your smartphone data and ("
---

# 3E Smartphone Substudy — South Africa

![3E Smartphone Substudy App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/8f/4a/2a/8f4a2a24-e542-d7cc-e47f-7e513fa264aa/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Avicenna Research](https://apptail.io/developer/avicenna-research-EAc)
**Category:** Health Fitness
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.ethica.fordham3E
**Store:** Apple App Store
**Country:** South Africa
**Version:** 1065 (released 2026-10-07)
**Original Release:** 2023-09-28
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/za/app/app/id6465963006)
**AppTail Page:** [https://apptail.io/app/3e-smartphone-substudy-afSn/south-africa](https://apptail.io/app/3e-smartphone-substudy-afSn/south-africa)

## 3E Smartphone Substudy Description
Your participation in this study is completely voluntary. If you choose to participate, you will be asked to (1) download the 3E Smartphone Substudy app and allow sharing of your smartphone data and (2) complete short, daily surveys for 9 days in a row. Surveys will be administered in the 3E Smartphone Substudy app and take ~5 minutes to complete. The surveys will include questions about your sleep, physical activity, and other health behaviors that day. The app will collect information from your smartphone’s built-in GPS, accelerometer, and gyroscope sensors to give us information on your movement (e.g., steps and distance traveled). It will also collect general screen time and app usage data (e.g., how long you use). It will NOT collect information from your text messages, phone calls, or your apps beyond which app you are using and for how long (e.g., Spotify for 50 min). If you choose to participate, we will ask you to complete this process 1-2 times per year. You will receive up to $35 for completing the 3E Smartphone Substudy.

## 3E Smartphone Substudy Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/67/e1/fe/67e1fe16-4515-aae7-922d-19e0b30fd22b/61736551-0452-4053-badb-ada8b44ae863_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.04.09.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/d1/08/ff/d108ffc8-2874-76f6-40b7-1ff2308e9f89/adaab793-6569-4e05-a5ac-09403989a0fe_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.04.33.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/21/78/e4/2178e44e-c295-ed7d-217c-df2c37c4d11c/86afac02-e065-46b2-8814-d9da4be41904_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.04.35.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/e3/a0/2c/e3a02c00-77c4-4e19-5ed0-fbead849ecb2/cf816c42-1645-4dbb-b8cb-5f0a6040d8fa_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.04.39.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/50/8c/cd/508ccd47-b213-8a8d-480c-ec3ac68f673b/74affe3e-9ca1-49dd-8fe5-f4ad9b5d689b_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.04.41.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/f7/38/07/f738074d-2370-45b9-9a55-8f74b03fba7c/47028caa-8262-4b93-bcfa-b8cb8b02e5bf_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.05.38.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/69/a1/33/69a13394-4d40-ad6f-765b-888ae5f98d69/12bf0d40-4eb0-4050-8102-11e5b35410f1_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.06.12.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/bf/a8/9a/bfa89a3e-33b6-ea4b-421d-a6d8c6c0d3a2/44865a03-3d8a-4c00-a337-7fdb7d841c7d_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.06.21.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/aa/7f/63/aa7f633e-1b73-abb7-9b18-6fa4d43a3599/50e1d775-b6ff-48ed-bc8e-3cf08b8b8556_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.05.42.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/38/c8/33/38c833dd-25a0-e47f-89d7-501defbefc36/f3652e5a-f66e-49d4-b107-c8bee63fbcc3_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2023-09-11_at_17.05.45.png/1242x2688.png)







## 3E Smartphone Substudy Available In
- [United Arab Emirates](https://apptail.io/app/3e-smartphone-substudy-afSn/united-arab-emirates)
- [Argentina](https://apptail.io/app/3e-smartphone-substudy-afSn/argentina)
- [Brunei](https://apptail.io/app/3e-smartphone-substudy-afSn/brunei)
- [Belarus](https://apptail.io/app/3e-smartphone-substudy-afSn/belarus)
- [Canada](https://apptail.io/app/3e-smartphone-substudy-afSn/canada)
- [Switzerland](https://apptail.io/app/3e-smartphone-substudy-afSn/switzerland)
- [Chile](https://apptail.io/app/3e-smartphone-substudy-afSn/chile)
- [Colombia](https://apptail.io/app/3e-smartphone-substudy-afSn/colombia)
- [Germany](https://apptail.io/app/3e-smartphone-substudy-afSn/germany)
- [Denmark](https://apptail.io/app/3e-smartphone-substudy-afSn/denmark)
- [Algeria](https://apptail.io/app/3e-smartphone-substudy-afSn/algeria)
- [Ecuador](https://apptail.io/app/3e-smartphone-substudy-afSn/ecuador)
- [Estonia](https://apptail.io/app/3e-smartphone-substudy-afSn/estonia)
- [Spain](https://apptail.io/app/3e-smartphone-substudy-afSn/spain)
- [France](https://apptail.io/app/3e-smartphone-substudy-afSn/france)
- [Greece](https://apptail.io/app/3e-smartphone-substudy-afSn/greece)
- [Ireland](https://apptail.io/app/3e-smartphone-substudy-afSn/ireland)
- [Israel](https://apptail.io/app/3e-smartphone-substudy-afSn/israel)
- [India](https://apptail.io/app/3e-smartphone-substudy-afSn/india)
- [Italy](https://apptail.io/app/3e-smartphone-substudy-afSn/italy)
- [Japan](https://apptail.io/app/3e-smartphone-substudy-afSn/japan)
- [South Korea](https://apptail.io/app/3e-smartphone-substudy-afSn/south-korea)
- [Kuwait](https://apptail.io/app/3e-smartphone-substudy-afSn/kuwait)
- [Kazakhstan](https://apptail.io/app/3e-smartphone-substudy-afSn/kazakhstan)
- [Lithuania](https://apptail.io/app/3e-smartphone-substudy-afSn/lithuania)
- [Latvia](https://apptail.io/app/3e-smartphone-substudy-afSn/latvia)
- [North Macedonia](https://apptail.io/app/3e-smartphone-substudy-afSn/north-macedonia)
- [Malta](https://apptail.io/app/3e-smartphone-substudy-afSn/malta)
- [Mexico](https://apptail.io/app/3e-smartphone-substudy-afSn/mexico)
- [Malaysia](https://apptail.io/app/3e-smartphone-substudy-afSn/malaysia)
- [Nigeria](https://apptail.io/app/3e-smartphone-substudy-afSn/nigeria)
- [Norway](https://apptail.io/app/3e-smartphone-substudy-afSn/norway)
- [Peru](https://apptail.io/app/3e-smartphone-substudy-afSn/peru)
- [Pakistan](https://apptail.io/app/3e-smartphone-substudy-afSn/pakistan)
- [Portugal](https://apptail.io/app/3e-smartphone-substudy-afSn/portugal)
- [Russia](https://apptail.io/app/3e-smartphone-substudy-afSn/russia)
- [Saudi Arabia](https://apptail.io/app/3e-smartphone-substudy-afSn/saudi-arabia)
- [Singapore](https://apptail.io/app/3e-smartphone-substudy-afSn/singapore)
- [Slovenia](https://apptail.io/app/3e-smartphone-substudy-afSn/slovenia)
- [Thailand](https://apptail.io/app/3e-smartphone-substudy-afSn/thailand)
- [Türkiye](https://apptail.io/app/3e-smartphone-substudy-afSn/turkey)
- [United States](https://apptail.io/app/3e-smartphone-substudy-afSn/united-states)
- [Vietnam](https://apptail.io/app/3e-smartphone-substudy-afSn/vietnam)
- [South Africa](https://apptail.io/app/3e-smartphone-substudy-afSn/south-africa)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*