Lens Correction vs GridRoll
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lens Correction
This app corrects portrait distortion caused by wide-angle iPhone lenses. It effectively resolves the stretching effect on faces near the edges of photos, making them more recognizable. It is specifically designed for portrait correction and may not significantly impact other photo types.
- Corrects wide-angle lens distortion
- Fixes stretched portraits
- Designed for selfie and group photos
- Simple photo selection process
- Focuses on portrait deformation
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The iPhone’s wide-angle lens is very easy to use, especially when taking selfies. You can easily take pictures of the whole family with one hand. But the problem came. The portrait near the edge was severely deformed, and the face was stretched to the point that no one wanted to recognize himself. In order to effectively solve the problem of portrait deformation due to wide-angle lens stretching, this free App was developed. Although there are unpopular advertisements, future upgrades will add in-app purchases to remove advertisements. Please select a photo with a wide-angle effect. If there is no wide-angle effect originally, it will cause distortion. The purpose of this App is to correct the deformation of portraits. As for taking photos of buildings or some hardware facilities, landscape photos, etc., the effect is not significant.
GridRoll
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GridRoll is a clean, chronological gallery for your photos and videos. Everything appears in date order — newest first, or oldest first if you prefer — with photos and videos in their own tabs so you can find things fast. • Fast, smooth scrolling through your whole library • Separate Photos and Videos tabs, plus your albums • Full-screen viewer with clear video playback controls and AirPlay • Select many items at once — swipe across the grid to select quickly • Deletion always uses the system confirmation dialog and Recently Deleted • Favourites, a list view with places and dates, private names for videos • Works on iPhone and iPad GridRoll runs entirely on your device. No account, no uploads, no analytics, no tracking — your library never leaves your phone.
Screenshots
Verdict
The clearest difference is ads: GridRoll at none against Lens Correction's shown. GridRoll also leads on update cadence (every 10 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Lens Correction ships an update monthly, GridRoll every 10 days. The most recent releases landed on September 18, 2026 and October 6, 2026 respectively.
| Parameter | Lens Correction | GridRoll |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | CHI HAO CHIU | Mehrdad Yazdani |
In-app purchases
Lens Correction
No in-app purchases
GridRoll
No in-app purchases









