# Bubblo Bubblo vs Sleep Effect

The clearest difference is in-app purchases: Sleep Effect at none against Bubblo Bubblo's 1. Sleep Effect also leads on update cadence (fortnightly vs every 2 months). Bubblo Bubblo's advantage is iOS requirement (18.0 vs 26.1). On price, ads and device support there is nothing between them.

Both are free to download. Bubblo Bubblo sells 1 one-off in-app purchase. Sleep Effect asks for nothing beyond the download.

Bubblo Bubblo ships an update every 2 months, Sleep Effect fortnightly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Bubblo Bubblo | Sleep Effect |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 151 MB | 324 MB |
| Requires iOS | **18.0** | 26.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [XIAOYING DING](https://appshunter.io/developer/1811309193) | [Ahmed Nabulsi](https://appshunter.io/developer/1863897890) |

## What reviewers say

### Bubblo Bubblo

[App page](https://appshunter.io/ios/app/bubblo-bubblo/id6745211507)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | one-time |


### Sleep Effect

[App page](https://appshunter.io/ios/app/sleep-effect/id6762162467)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bubblo Bubblo free?

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

### Is Sleep Effect free?

Sleep Effect is free to download, with no in-app purchases.

### Do Bubblo Bubblo or Sleep Effect have ads?

Neither Bubblo Bubblo nor Sleep Effect shows ads.

### Which is updated more often, Bubblo Bubblo or Sleep Effect?

Bubblo Bubblo ships an update every 2 months, and Sleep Effect fortnightly. Most recently, Bubblo Bubblo was updated on October 10, 2026 and Sleep Effect on October 11, 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.*