Comparison

similar faces vs Image Compare.

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

similar faces

This app analyzes how alike human faces are in photos. It offers modes to find the best matching pairs, compare one face against all others, and supports zooming and moving within the review scene. Results can be shared to social media platforms.

Highlights
  • Face similarity evaluation
  • Multiple comparison modes (1 pair, 2 pairs, 1 vs all)
  • Zoom and move in review scene
  • Share results to social media
  • Offline data processing
  • Local data storage
Features
Read full description

Evaluating how much human faces look alike together in a photo. Modes: - 1 pair: Find the best similar faces pair. - 2 pairs: Find the two best similar faces pairs. - 1 vs all: Compare one selected face with the others. In this mode, users can TOUCH on a face to compare it with the others. Support zooming and moving in the review scene. Support sharing the result image to Facebook, Twitter, etc. Privacy Policy: - The app processes data entirely offline. User data (including faces and photos) is only used to check similarity locally, stored on user's local device, and not sent anywhere else. Users can delete this app's data anytime.

About

Image Compare.

Easily compare two images using various modes like side-by-side, slider, opacity, or difference. Zoom in for detailed inspection and export comparison results.

Highlights
  • Concurrent side-by-side comparison
  • Slider comparison
  • Opacity comparison
  • Difference comparison
  • Zoom for detail
  • Export difference images
Read full description

Compare two photos, instantly. Image Compare is an iOS app that puts two images side by side, under a slider, as an overlay, or as a pixel difference, so you can see exactly what changed. From photo edits and DIY projects to plant growth records and screenshot checks, spot the difference in seconds. # Four Comparison Modes ▼ Side by Side View both images at once. Perfect for before/after and progress photos. ▼ Slider Drag a slider across one image to reveal the other underneath. Smoothly check before/after photo edits. ▼ Opacity Overlay two images and adjust transparency. Great for spotting alignment shifts and subtle changes. ▼ Difference Subtract one image from the other to highlight only what's changed. Reveals details invisible to the naked eye. * You can save the difference image to your Photos. # Position Adjustment — Line Up Your Images When two photos were not taken from exactly the same spot, use Position Adjustment mode to align them before comparing. ・Drag to move one image over the other. ・Pinch to scale it. ・NEW: Rotate with two fingers to fix a tilted shot. Once aligned, the slider, opacity, and difference views show real changes instead of camera offset. # Features ・Pinch to zoom in Slider, Opacity, and Difference modes for detailed inspection. ・Two processing options for Difference mode: - Express: Resizes to screen width before processing (fast). - Original: Processes at full resolution (high accuracy, takes longer. Both images must be the same size). ・Export the difference image to Photos or share it directly. # Common Uses ・How to compare two photos on iPhone: pick two images from your library and switch between modes. ・Check a before/after photo edit or retouch. ・Find the difference between two screenshots or design mockups. ・Track progress: DIY, renovation, fitness, plants, cleaning, and more. ・Verify that two images are identical or detect subtle changes. # Privacy First ・Works completely offline. Your images never leave your device. ・Photo library access is only used when selecting images to compare.

Screenshots

similar faces4 screens
Image Compare.4 screens

Verdict

The call

The clearest difference is in-app purchases: Image Compare. at none against similar faces's 1. Image Compare. also leads on review sentiment (91% vs 58%). similar faces's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. similar faces sells 1 one-off in-app purchase. Image Compare. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

similar faces holds the better App Store score, 4.2 against 4.1. That said, the two scores are not equally well evidenced: similar faces has 351 ratings behind it against 40, so its average is the more settled of the two. Written reviews complicate that: 58% of similar faces's written reviews are positive against 91% of Image Compare.'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

similar faces ships an update every 4 days, Image Compare. every 2 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
similar faces versus Image Compare.: the parameters behind the verdict, then further details
Parametersimilar facesImage Compare.
PriceFreeFree
Rating4.2 (351 ratings) — better4.1 (40 ratings)
Positive reviews57.9% of reviews90.9% of reviews — better
Number of ratings351 — better40
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size80 MB12 MB
Age rating4+4+
DeveloperAnh NguyenReiji Kobayashi

Customer experience

similar faces

All ratings350 ratings
Positive77.4%
Neutral11.1%
Negative11.4%
Written reviews38 reviews
Positive57.9%
Neutral15.8%
Negative26.3%

Image Compare.

All ratings40 ratings
Positive77.5%
Neutral0.0%
Negative22.5%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

Bugs and requests

similar faces

Reported bugs

10 issues
  • Crashes
  • Doesn’t actually work
  • Not Good at recognizing faces
  • Always said 19% for me
  • Seems like every pic 19%
Show 5 more
  • Always the same number for the rate
  • Not correct when looking at two same faces
  • Takes all of the info from your phone, uploads it to their server and still doesn’t work
  • Cannot get pictures loaded
  • It takes 15 minutes to download to take your photos and doesn’t even work

Requested features

4 requests
  • Library option to add all photos
  • Compare all photos at once
  • Option to pre-select specific photos
  • AI comparison details

Image Compare.

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

similar faces

One-time1
  • Remove Ads$9.99
None

Image Compare.

No in-app purchases

Questions

Is similar faces free?
similar faces is free to download, with in-app purchases available.
Is Image Compare. free?
Image Compare. is free to download, with no in-app purchases.
Which has better reviews, similar faces or Image Compare.?
similar faces is rated higher. similar faces averages 4.2 out of 5 from 351 ratings, while Image Compare. averages 4.1 from 40 ratings.
Do similar faces or Image Compare. have ads?
Image Compare. shows ads; similar faces does not.
Which is updated more often, similar faces or Image Compare.?
similar faces ships an update every 4 days, and Image Compare. every 2 weeks. Most recently, similar faces was updated on November 7, 2026 and Image Compare. on November 3, 2026.

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