# Quantify vs Mood Tracker

The clearest difference is update cadence: Quantify at daily against Mood Tracker's every 3 weeks. Mood Tracker's advantage is ratings volume (8 vs 2) and iOS requirement (15.5 vs 17.6). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Quantify against 5.0 for Mood Tracker. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Quantify ships an update daily, Mood Tracker every 3 weeks. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Quantify | Mood Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/quantify-optimize-life/id6480232018/reviews) | [5.0 (8 ratings)](https://appshunter.io/ios/app/mood-tracker-year-in-pixels/id6749025290/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 20 MB | 46 MB |
| Requires iOS | 17.6 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nicole Blair Stoddart](https://appshunter.io/developer/1738530435) | [JungWoo Kwak](https://appshunter.io/developer/1828511518) |

## What reviewers say

### Quantify

[App page](https://appshunter.io/ios/app/quantify-optimize-life/id6480232018)

This app allows users to create custom data trackers for any aspect of their lives. Visualize your progress with real-time charts and analyze relationships between different variables. Securely sync your data across devices with cloud backup.

**Highlights:** Custom trackers (numeric, text, boolean, timestamp), Real-time line charts, Correlation analysis with p-values, Cloud sync across devices, Secure sign-in with Apple/Google

**Features:** macOS Compatibility

**In-app purchases:** none


### Mood Tracker

[App page](https://appshunter.io/ios/app/mood-tracker-year-in-pixels/id6749025290)

Log your daily mood, habits, and memories in a single entry. Visualize your year through a clean calendar and insightful statistics, revealing patterns in your life over time. Attach photos to revisit cherished moments and gain a deeper understanding of your well-being.

**Highlights:** Daily mood tracking with notes, Habit and routine tracking, Photo attachment for memories, Calendar timeline view, Event logging, Tagging and location context, Interactive statistics, Year in Pixels calendar

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

**In-app purchases:** none


## Frequently asked questions

### Is Quantify free?

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

### Is Mood Tracker free?

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

### Which has better reviews, Quantify or Mood Tracker?

Quantify and Mood Tracker are both rated 5.0 out of 5 on the App Store, from 2 and 8 ratings respectively.

### Do Quantify or Mood Tracker have ads?

Neither Quantify nor Mood Tracker shows ads.

### Which is updated more often, Quantify or Mood Tracker?

Quantify ships an update daily, and Mood Tracker every 3 weeks. Most recently, Quantify was updated on October 7, 2026 and Mood Tracker on October 22, 2026.

---

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