# SlowBi vs Ocular Surface

The clearest difference is update cadence: SlowBi at every 4 months against Ocular Surface's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SlowBi ships an update every 4 months, Ocular Surface every 7 months. The most recent releases landed on September 22, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SlowBi | Ocular Surface |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Size | 36 MB | 27 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Itineraria S.r.l.](https://appshunter.io/developer/385286542) | [GoApp s.r.l.](https://appshunter.io/developer/435482060) |

## What reviewers say

### SlowBi

[App page](https://appshunter.io/ios/app/slowbi/id1358612904)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ocular Surface

[App page](https://appshunter.io/ios/app/ocular-surface/id6752768816)

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

**In-app purchases:** none


## Frequently asked questions

### Is SlowBi free?

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

### Is Ocular Surface free?

Ocular Surface is free to download, with no in-app purchases.

### Do SlowBi or Ocular Surface have ads?

Neither SlowBi nor Ocular Surface shows ads.

### Which is updated more often, SlowBi or Ocular Surface?

SlowBi ships an update every 4 months, and Ocular Surface every 7 months. Most recently, SlowBi was updated on September 22, 2026 and Ocular Surface 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.*