# CSUB SRC vs Qulab_EMA

The clearest difference is update cadence: Qulab_EMA at fortnightly against CSUB SRC's every 17 months. Qulab_EMA also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CSUB SRC ships an update every 17 months, Qulab_EMA fortnightly. The most recent releases landed on September 21, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | CSUB SRC | Qulab_EMA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/qulab-ema/id6642665285/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 43 MB | 28 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [InnoSoft Canada Inc.](https://appshunter.io/developer/672385534) | [Yanhe Ren](https://appshunter.io/developer/1763443550) |

## What reviewers say

### CSUB SRC

[App page](https://appshunter.io/ios/app/csub-src/id1535847257)

**In-app purchases:** none


### Qulab_EMA

[App page](https://appshunter.io/ios/app/qulab-ema/id6642665285)

This application helps you monitor your emotional state by completing a brief daily survey. It provides a simple way to track mood patterns over time and offers customizable reminders to ensure consistent use. Understand your feelings better with this straightforward health tool.

**Highlights:** Daily mood surveys, Multiple-choice questions, Mood pattern tracking, Daily reminders, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CSUB SRC free?

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

### Is Qulab_EMA free?

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

### Do CSUB SRC or Qulab_EMA have ads?

Neither CSUB SRC nor Qulab_EMA shows ads.

### Which is updated more often, CSUB SRC or Qulab_EMA?

CSUB SRC ships an update every 17 months, and Qulab_EMA fortnightly. Most recently, CSUB SRC was updated on September 21, 2026 and Qulab_EMA on June 11, 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.*