# SEMA3 vs My EZ Diary

The clearest difference is rating: My EZ Diary at 3.8 against SEMA3's 3.1. SEMA3's advantage is update cadence (every 2 months vs every 6 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

My EZ Diary holds the better App Store score, 3.8 against 3.1. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

SEMA3 ships an update every 2 months, My EZ Diary every 6 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | SEMA3 | My EZ Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (8 ratings)](https://appshunter.io/ios/app/sema3/id1427120118/reviews) | **[3.8 (4 ratings)](https://appshunter.io/ios/app/my-ez-diary/id1441377870/reviews)** |
| Number of ratings | **8** | 4 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 38 MB | 54 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Sinnott](https://appshunter.io/developer/1080236817) | [Mobile Digital Indaba](https://appshunter.io/developer/1436499349) |

## What reviewers say

### SEMA3

[App page](https://appshunter.io/ios/app/sema3/id1427120118)

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.

**Highlights:** Design survey research, Conduct smartphone surveys, Ecological momentary assessment, Mobile survey deployment, Research software suite

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### My EZ Diary

[App page](https://appshunter.io/ios/app/my-ez-diary/id1441377870)

Share your opinions and complete surveys to earn rewards. Receive reminders for new tasks to ensure you don't miss opportunities to participate and be recognized.

**Highlights:** Complete surveys, Earn rewards, Receive task reminders, Share your views, Participate in activities

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SEMA3 free?

SEMA3 is free to download, with no in-app purchases.

### Is My EZ Diary free?

My EZ Diary is free to download, with no in-app purchases.

### Which has better reviews, SEMA3 or My EZ Diary?

My EZ Diary is rated higher. SEMA3 averages 3.1 out of 5 from 8 ratings, while My EZ Diary averages 3.8 from 4 ratings.

### Do SEMA3 or My EZ Diary have ads?

Neither SEMA3 nor My EZ Diary shows ads.

### Which is updated more often, SEMA3 or My EZ Diary?

SEMA3 ships an update every 2 months, and My EZ Diary every 6 months. Most recently, SEMA3 was updated on November 2, 2026 and My EZ Diary on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*