# Pain Killer 2.0 vs Solfeggion Frequency Energizer

The clearest difference is review sentiment: Pain Killer 2.0 at 93% against Solfeggion Frequency Energizer's 50%. Pain Killer 2.0 also leads on rating (4.8 vs 1.0) and ratings volume (142 vs 1). Solfeggion Frequency Energizer's advantage is price ($2.99 vs $4.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Pain Killer 2.0 costs $4.99 and Solfeggion Frequency Energizer $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pain Killer 2.0 holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Pain Killer 2.0 has 142 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 93% of Pain Killer 2.0's written reviews are positive against 50% of Solfeggion Frequency Energizer's.

Pain Killer 2.0 ships an update every 4 months, Solfeggion Frequency Energizer every 6 months. The most recent releases landed on November 10, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Pain Killer 2.0 | Solfeggion Frequency Energizer |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | **[4.8 (142 ratings)](https://appshunter.io/ios/app/pain-killer-20/id350438576/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/solfeggion-frequency-energizer/id6472733103/reviews) |
| Number of ratings | **142** | 1 |
| Positive reviews | **93.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Paid | Paid |
| Best chart rank | **#117** | — |
| Size | 38 MB | 42 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Brian Zeleniak](https://appshunter.io/developer/345848084) | [Richter und Bodenstein Software GbR](https://appshunter.io/developer/1709722931) |

## What reviewers say

### Pain Killer 2.0

[App page](https://appshunter.io/ios/app/pain-killer-20/id350438576)

**Currently charting:** #117 Top Paid · Health & Fitness (US App Store)

This app uses advanced binaural beats to naturally release pain-stopping endorphins, offering fast relief for chronic pain, migraines, and more. Simply put on headphones, tap start, and experience pain melting away within minutes. It's a safe, natural, and non-addictive solution with no side effects.

**Highlights:** Natural pain relief via binaural beats, Fast acting on migraines and chronic pain, Variety of specialized sound settings, Background operation and auto-lock support, Gentle fade-out at session end, Built-in help and easy interface

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

**In-app purchases:** none

**What reviewers like**

- ✅ Effective pain relief without medication
- 😴 Helps users fall asleep faster
- 🎯 Multiple targeted settings for different pain types
- 💰 Affordable one-time purchase
- 🎧 Works with headphones and speakers

**What reviewers complain about**

- 🐛 App stops when phone screen goes dark
- ❌ Doesn't work for everyone
- ⏱️ Limited timer duration (max 2 hours)
- 🔊 Tones may be unpleasant to some users
- 💳 Billing issues reported

**Reported bugs**

- App stops playing when phone screen goes dark/locks
- Sound does not fade at end of session as advertised
- Double billing issue with bundle purchases
- App crashes on certain devices
- Sleep mode interferes with app functionality

**Requested features**

- Extend timer to 8 hours or 24 hours
- Add pause/resume functionality
- Improve app to prevent stopping when screen locks
- Add tooth pain relief setting
- Fade out sound at end of session


### Solfeggion Frequency Energizer

[App page](https://appshunter.io/ios/app/solfeggion-frequency-energizer/id6472733103)

This app offers energizing and relaxing experiences using Solfeggio frequencies. It features independent energizing options, chakra cleansing, and cosmic frequencies. Enjoy audio, visual, and haptic feedback for a holistic well-being session.

**Highlights:** Solfeggio frequencies, Schumann difference vibration, Chakra cleansing, Cosmic frequencies, Audio, visual, and haptic feedback, Multilingual support

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

**In-app purchases:** none


## Frequently asked questions

### Is Pain Killer 2.0 free?

Pain Killer 2.0 costs $4.99, with no in-app purchases.

### Is Solfeggion Frequency Energizer free?

Solfeggion Frequency Energizer costs $2.99, with no in-app purchases.

### Which has better reviews, Pain Killer 2.0 or Solfeggion Frequency Energizer?

Pain Killer 2.0 is rated higher. Pain Killer 2.0 averages 4.8 out of 5 from 142 ratings, while Solfeggion Frequency Energizer averages 1.0 from 1 ratings.

### Do Pain Killer 2.0 or Solfeggion Frequency Energizer have ads?

Neither Pain Killer 2.0 nor Solfeggion Frequency Energizer shows ads.

### Which is updated more often, Pain Killer 2.0 or Solfeggion Frequency Energizer?

Pain Killer 2.0 ships an update every 4 months, and Solfeggion Frequency Energizer every 6 months. Most recently, Pain Killer 2.0 was updated on November 10, 2026 and Solfeggion Frequency Energizer on November 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.*