# Superfy Tracker vs Keep

The clearest difference is in-app purchases: Superfy Tracker at none against Keep's 1. Superfy Tracker also leads on iOS requirement (11.0 vs 17.0). Keep's advantage is update cadence (every 6 days vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Keep sells 1 one-off in-app purchase. Superfy Tracker asks for nothing beyond the download.

Superfy Tracker ships an update every 7 months, Keep every 6 days. The most recent releases landed on September 9, 2026 and July 18, 2026 respectively.

## The numbers

| Metric | Superfy Tracker | Keep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keep-3d-ambient-clocks/id6777606575/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 13 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Smartsensor Technologies Pty Ltd](https://appshunter.io/developer/1206186356) | [WILL ALEXANDER GIESS](https://appshunter.io/developer/1869510576) |

## What reviewers say

### Superfy Tracker

[App page](https://appshunter.io/ios/app/superfy-tracker/id1607394041)

**Features:** macOS Compatibility

**In-app purchases:** none


### Keep

[App page](https://appshunter.io/ios/app/keep-3d-ambient-clocks/id6777606575)

Transform your iPhone into a beautiful, full-screen 3D clock display. Choose from six unique ambient scenes designed for passive viewing on desks or nightstands. Unlock all premium displays with a one-time purchase for an ad-free experience.

**Highlights:** Six unique 3D clock displays, Full-screen ambient viewing, Designed for desks and nightstands, Automatic launch with Shortcuts, Minimalist, distraction-free design, One-time purchase for Pro features

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep pro | $3.99 | one-time |


## Frequently asked questions

### Is Superfy Tracker free?

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

### Is Keep free?

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

### Do Superfy Tracker or Keep have ads?

Neither Superfy Tracker nor Keep shows ads.

### Which is updated more often, Superfy Tracker or Keep?

Superfy Tracker ships an update every 7 months, and Keep every 6 days. Most recently, Superfy Tracker was updated on September 9, 2026 and Keep on July 18, 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.*