# Knows vs JumpEye

The clearest difference is price: Knows at Free against JumpEye's $2.99. Knows also leads on iOS requirement (11.0 vs 16.6). JumpEye's advantage is device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

Knows is free to download; JumpEye costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Knows ships an update monthly, JumpEye every 2 months. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Knows | JumpEye |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/jumpeye/id1451490992/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 55.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Paid |
| Size | 28 MB | 5 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [SOLTILO Knows Inc](https://appshunter.io/developer/1446529762) | [S-CADE, CORPORATION](https://appshunter.io/developer/1621269147) |

## What reviewers say

### Knows

[App page](https://appshunter.io/ios/app/knows/id1446529763)

**In-app purchases:** none


### JumpEye

[App page](https://appshunter.io/ios/app/jumpeye/id1451490992)

This app analyzes vertical jump height by calculating flight time using your device's high-speed camera. Record or import videos, mark takeoff and landing frames, and get an automatic jump height calculation. It also offers a Rebound Jump Index for continuous jumping analysis.

**Highlights:** Vertical jump height calculation, Flight time measurement, High-speed camera integration, Video import from Photo Library, Manual frame marking (takeoff/landing), Rebound Jump Index calculation, Automatic file naming and editing

**In-app purchases:** none


## Frequently asked questions

### Is Knows free?

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

### Is JumpEye free?

JumpEye costs $2.99, with no in-app purchases.

### Do Knows or JumpEye have ads?

Neither Knows nor JumpEye shows ads.

### Which is updated more often, Knows or JumpEye?

Knows ships an update monthly, and JumpEye every 2 months. Most recently, Knows was updated on September 9, 2026 and JumpEye on September 22, 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.*