# Just Start vs Yemma 4

The clearest difference is in-app purchases: Yemma 4 at none against Just Start's 3. Yemma 4 also leads on update cadence (daily vs every 11 days). Just Start's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Just Start sells 3 in-app purchases, starting at $7.99 per month. Yemma 4 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Just Start against 5.0 for Yemma 4. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Just Start ships an update every 11 days, Yemma 4 daily. The most recent releases landed on September 19, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Just Start | Yemma 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/just-start-adhd-focus-timer/id6760567262/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/yemma-4/id6761586324/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Daily** |
| Monetization | Freemium | **Free** |
| Size | 85 MB | 28 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Estus Holdings LLC](https://appshunter.io/developer/1879926455) | [AVMIL LABS LLC](https://appshunter.io/developer/1884468489) |

## What reviewers say

### Just Start

[App page](https://appshunter.io/ios/app/just-start-adhd-focus-timer/id6760567262)

This app helps individuals overcome task initiation challenges with ADHD-friendly focus sessions. It offers customizable timers, AI-powered task breakdown, virtual body doubling, and ambient soundscapes to enhance concentration and productivity.

**Highlights:** Customizable Pomodoro timers, AI task breakdown, Virtual body doubling, Live Activities & Dynamic Island integration, Lock screen widgets, Ambient soundscapes, Evolving focus garden

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Just Start Pro Monthly | $7.99 | per month |
| Just Start Pro Annual | $49.99 | per year |
| Just Start Pro Lifetime | $58.99 | one-time |


### Yemma 4

[App page](https://appshunter.io/ios/app/yemma-4/id6761586324)

This AI chat app runs entirely on your iPhone, processing prompts, images, and responses locally. Enjoy private conversations, brainstorm ideas, and summarize notes offline after an initial model download. It requires specific hardware for full functionality.

**Highlights:** 100% on-device AI chat, No sign-up or subscription required, Offline functionality after model download, Local conversation history, Adjustable response style, Image understanding

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

**In-app purchases:** none


## Frequently asked questions

### Is Just Start free?

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

### Is Yemma 4 free?

Yemma 4 is free to download, with no in-app purchases.

### Which has better reviews, Just Start or Yemma 4?

Just Start and Yemma 4 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Just Start or Yemma 4 have ads?

Neither Just Start nor Yemma 4 shows ads.

### Which is updated more often, Just Start or Yemma 4?

Just Start ships an update every 11 days, and Yemma 4 daily. Most recently, Just Start was updated on September 19, 2026 and Yemma 4 on September 15, 2026.

---

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