# TestMe vs Serotonin Boost

The clearest difference is in-app purchases: Serotonin Boost at none against TestMe's 2. Serotonin Boost also leads on update cadence (daily vs every 3 weeks) and iOS requirement (11.0 vs 15.1). TestMe's advantage is review sentiment (100% vs 91%). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. TestMe sells 1 one-off in-app purchase. Serotonin Boost asks for nothing beyond the download.

TestMe ships an update every 3 weeks, Serotonin Boost daily. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | TestMe | Serotonin Boost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (19 ratings)](https://appshunter.io/ios/app/serotonin-boost/id1574734627/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | **100.0% of reviews** | 90.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free | Free |
| Size | 44 MB | 64 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Saea Jang](https://appshunter.io/developer/1462248318) | [Ahmed Alkazaz](https://appshunter.io/developer/1574734629) |

## What reviewers say

### TestMe

[App page](https://appshunter.io/ios/app/testme-personality-tests/id1573536723)

Discover your strengths and understand your relationships with a variety of intelligence and personality tests. Get personalized advice to improve your work, social life, and overall happiness.

**Highlights:** Intelligence tests, Personality tests, Self-discovery, Relationship advice, Lifestyle creation, Career guidance

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TestMe Plus | $4.99 | one-time |


### Serotonin Boost

[App page](https://appshunter.io/ios/app/serotonin-boost/id1574734627)

This app aims to enhance your mood and mental well-being with inspirational quotes and relaxing Lofi music. Discover motivational messages from notable figures and unwind with a curated selection of ambient tunes.

**Highlights:** Motivational quotes, Celebrity and historian quotes, Free Lofi music, Relaxing audio, Positive vibes promotion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TestMe free?

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

### Is Serotonin Boost free?

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

### Do TestMe or Serotonin Boost have ads?

Neither TestMe nor Serotonin Boost shows ads.

### Which is updated more often, TestMe or Serotonin Boost?

TestMe ships an update every 3 weeks, and Serotonin Boost daily. Most recently, TestMe was updated on October 19, 2026 and Serotonin Boost on October 2, 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.*