# GravLens3 — user reviews

> 5 indexed App Store user reviews of GravLens3 by Eli Rykoff, rated 3.70/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/gravlens3/id318275930/reviews
- App overview in markdown: https://appshunter.io/ios/app/gravlens3/id318275930.md
- Rating breakdown: 5★ 4 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 2

## Most critical reviews (5 lowest-rated)

### 1/5 — Needs an update for ios 11

*2018-11-26, version 3.2*

This is a fantastic app when it works - but it doesn't save your edits reliably. It keeps saving the unedited source.

update:

11/18: iOS 12.1 on a new iPhone X - still isn't working properly. It allows you to manipulate the image to your heart's content, but will not save anything but the source image. Very disappointing. Used to be a great app.

### 5/5 — Amazing

*2020-02-03, version 3.2*

This app is a great demonstrator for gravitational lensing

### 5/5 — Excellent app

*2009-10-14, version 0*

Does exactly what it says. Yes, it is somewhat like some Photoshop effects, but this is real physics. And cool physics at that!

### 5/5 — Nice

*2009-06-13*

& intuitive

### 5/5 — Great app

*2009-06-10, version 0*

Well done! Easy to use, instructive, and fun.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*