# SleepStream 2 Pro vs Iron Sharpens Iron App

The clearest difference is price: Iron Sharpens Iron App at Free against SleepStream 2 Pro's $2.99. Iron Sharpens Iron App also leads on in-app purchases (none vs 10) and update cadence (every 5 weeks vs every 2 months). SleepStream 2 Pro's advantage is chart position (#182 vs unranked) and iOS requirement (9.0 vs 12.0). On ads and device support there is nothing between them.

Iron Sharpens Iron App is free to download; SleepStream 2 Pro costs $2.99 up front. SleepStream 2 Pro sells 10 one-off in-app purchases. Iron Sharpens Iron App asks for nothing beyond the download.

SleepStream 2 Pro ships an update every 2 months, Iron Sharpens Iron App every 5 weeks. The most recent releases landed on October 23, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SleepStream 2 Pro | Iron Sharpens Iron App |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.5 (194 ratings)](https://appshunter.io/ios/app/sleepstream-2-pro/id385439445/reviews)** | — |
| Number of ratings | **194** | — |
| Positive reviews | 83.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#182** | — |
| Size | 37 MB | 29 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Explosive Apps](https://appshunter.io/developer/300812186) | [SOWerk LLC](https://appshunter.io/developer/1642605166) |

## What reviewers say

### SleepStream 2 Pro

[App page](https://appshunter.io/ios/app/sleepstream-2-pro/id385439445)

**Currently charting:** #182 Top Paid · Lifestyle (US App Store)

This app offers a comprehensive suite of tools designed to help users relax, fall asleep, and improve overall well-being. It features a vast library of calming sounds, guided meditations, brainwave programs, and visualizations to combat stress and enhance focus.

**Highlights:** Calming sounds library, Guided relaxation sessions, Pre-sleep meditation, Energy sessions, Brainwave programs, Visualizations

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thunderstorm HD | $0.99 | one-time |
| Fireplace Video | $0.99 | one-time |
| Energizing Ambient | $0.99 | one-time |
| Lucid Dreaming Binaural Beat | $0.99 | one-time |
| Waterfall HD | $0.99 | one-time |
| Memory Helper Binaural Beats | $0.99 | one-time |
| Anxiety Reducing Binaural Beats | $0.99 | one-time |
| Relaxing Drone Soundscapes | $0.99 | one-time |
| Sleep Phase Follower | $1.99 | one-time |
| Tinnitus Masker | $2.99 | one-time |

**What reviewers like**

- 💤 Helps with sleep and relaxation
- 🎧 High-quality audio and sound effects
- 🌙 Effective binaural beats and meditation
- 🔍 Variety of customization options
- 🌟 Positive impact on user's life and well-being

**What reviewers complain about**

- 🐛 Frequent loss of downloaded content
- 🔁 Abrupt sound transitions and short loops
- 💰 Excessive in-app purchases and upgrades
- 🔌 App causing device slowdown and issues
- 🔊 Difficulty adjusting volume at low levels

**Reported bugs**

- Crashes when trying to restore purchases
- Downloading issues and missing content
- Incompatibility with newer iOS versions
- Timer functionality interfering with device sleep

**Requested features**

- More guided meditation and relaxation options
- Longer sound loops and smoother transitions
- Ability to save user preferences and presets
- Integration with smart home devices and speakers
- Alarm functionality to wake up naturally


### Iron Sharpens Iron App

[App page](https://appshunter.io/ios/app/iron-sharpens-iron-app/id6448928662)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SleepStream 2 Pro free?

SleepStream 2 Pro costs $2.99, and also offers in-app purchases.

### Is Iron Sharpens Iron App free?

Iron Sharpens Iron App is free to download, with no in-app purchases.

### Do SleepStream 2 Pro or Iron Sharpens Iron App have ads?

Neither SleepStream 2 Pro nor Iron Sharpens Iron App shows ads.

### Which is updated more often, SleepStream 2 Pro or Iron Sharpens Iron App?

SleepStream 2 Pro ships an update every 2 months, and Iron Sharpens Iron App every 5 weeks. Most recently, SleepStream 2 Pro was updated on October 23, 2026 and Iron Sharpens Iron App on October 4, 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.*