# System vs Solca

The clearest difference is in-app purchases: System at none against Solca's 2. Solca's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Solca sells 2 in-app purchases, starting at $3.99 per month. System asks for nothing beyond the download.

System ships an update every 8 days, Solca weekly. The most recent releases landed on October 15, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | System | Solca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/system-understand-yourself/id6480427972/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 6 MB | 14 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Matteo Dada](https://appshunter.io/developer/1551807661) | [JIYULMOM](https://appshunter.io/developer/379186743) |

## What reviewers say

### System

[App page](https://appshunter.io/ios/app/system-understand-yourself/id6480427972)

This app helps you discover hidden patterns by connecting your daily behaviors and feelings. It provides a personal journal, an insights dashboard, and mapping tools to understand how actions influence emotions and vice versa, fostering self-awareness and data-driven growth.

**Highlights:** Personal journal for recording moments and feelings, Insights dashboard to visualize recurring behaviors and emotions, Behavior-emotion mapping to understand action-feeling connections, Emotion-action insights to see how feelings influence choices, Mindfulness encouragement with simple daily tracking, Data-driven growth through personal experience analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Solca

[App page](https://appshunter.io/ios/app/solca-social-battery-tracker/id6766017320)

This app helps introverts track their social energy levels and provides AI-generated excuses for social events. It offers burnout forecasts and recovery actions to help users manage their social battery.

**Highlights:** Track social battery drain and recharge activities, AI-generated excuses for social invitations, Burnout forecast with recovery actions, Customizable energy weights for activities, Watch complication for quick battery status, No sign-up required, local data storage

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solca Pro Monthly | $3.99 | per month |
| Solca Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is System free?

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

### Is Solca free?

Solca is free to download, with in-app purchases available.

### Do System or Solca have ads?

Neither System nor Solca shows ads.

### Which is updated more often, System or Solca?

System ships an update every 8 days, and Solca weekly. Most recently, System was updated on October 15, 2026 and Solca on October 31, 2026.

---

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