# WorryTree vs SLEEP SYNTH

The clearest difference is price: WorryTree at Free against SLEEP SYNTH's $1.99. WorryTree also leads on update cadence (every 2 weeks vs every 8 months) and device support (3 vs 1). SLEEP SYNTH's advantage is in-app purchases (none vs 10) and rating (5.0 vs 4.6). On ads there is nothing between them.

WorryTree is free to download; SLEEP SYNTH costs $1.99 up front. WorryTree sells 8 in-app purchases, starting at $1.99 per month. SLEEP SYNTH asks for nothing beyond the download.

SLEEP SYNTH holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 83% of WorryTree's written reviews are positive against 100% of SLEEP SYNTH's.

WorryTree ships an update every 2 weeks, SLEEP SYNTH every 8 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | WorryTree | SLEEP SYNTH |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/worrytree-stop-overthinking/id1452435581/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sleep-synth/id6748157970/reviews)** |
| Number of ratings | **10** | 3 |
| Positive reviews | 82.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 8 months |
| Monetization | Subscription | **Paid** |
| Size | 60 MB | 82 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Calverra Holdings LLC](https://appshunter.io/developer/6809538537) | [Andrew Nunez](https://appshunter.io/developer/1818922422) |

## What reviewers say

### WorryTree

[App page](https://appshunter.io/ios/app/worrytree-stop-overthinking/id1452435581)

This app helps you manage overthinking and anxiety by guiding you to write down your worries, assess their solvability, and take action or let them go. It incorporates CBT and ACT techniques, offering journaling, sensory practices, and reminders to promote mental well-being.

**Highlights:** Write down worries, Assess solvability, Create action plans, Practice letting go, Identify thinking traps, Gratitude and acceptance journals, Sensory practices for calm

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WorryTree Plus | $1.99 | per month |
| WorryTree Plus Monthly | $3.99 | per month |
| WorryTree Plus Monthly | $5.99 | per month |
| WorryTree Plus | $19.99 | per year |
| WorryTree Plus Yearly | $24.99 | per year |
| WorryTree Plus Yearly | $39.99 | per year |
| WorryTree Plus Yearly | $59.99 | per year |
| WorryTree Plus Yearly | $69.99 | per year |


### SLEEP SYNTH

[App page](https://appshunter.io/ios/app/sleep-synth/id6748157970)

This app uses science-backed sound and light therapy to improve sleep, focus, and emotional balance. It offers targeted audio sessions for deep rest, cognitive clarity, ADHD support, and stress relief.

**Highlights:** Science-backed sound therapy, Light therapy integration, Deep sleep enhancement, Cognitive clarity improvement, ADHD focus and calm, Anxiety and stress relief, Mood and emotional balance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WorryTree free?

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

### Is SLEEP SYNTH free?

SLEEP SYNTH costs $1.99, with no in-app purchases.

### Which has better reviews, WorryTree or SLEEP SYNTH?

SLEEP SYNTH is rated higher. WorryTree averages 4.6 out of 5 from 10 ratings, while SLEEP SYNTH averages 5.0 from 3 ratings.

### Do WorryTree or SLEEP SYNTH have ads?

Neither WorryTree nor SLEEP SYNTH shows ads.

### Which is updated more often, WorryTree or SLEEP SYNTH?

WorryTree ships an update every 2 weeks, and SLEEP SYNTH every 8 months. Most recently, WorryTree was updated on November 2, 2026 and SLEEP SYNTH on October 30, 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.*