Comparison

Image Upsample vs FourScan

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

Head to head
About

Image Upsample

Enhance the clarity of your mobile photos by increasing their resolution. Simply select an image and tap a button to automatically process and magnify it, making details sharper and more visible.

Highlights
  • Magnify image resolution
  • Automatic processing
  • Improve image clarity
  • Supports selected resolutions up to 1200*1200
  • AI-powered enhancement
Features
Read full description

Light-up is an app that magnifies the resolution of image, which can make image in mobile phones look clearer. After selecting the photo and touch 'light-up' button, the program will be executed automatically. After the progress bar is read out, the picture processing is completed. For images with too much noise or manual processing (such as beauty, compression, sharpening,cropped), the processing effect may not be good. Light-up only supports selected image resolution below 1200*1200 now. The current AI processing time may be slightly longer than the progress bar reading end time.

About

FourScan

Features
Read full description

Protect your privacy with 4 scanning technologies. Worried about hidden cameras or listening devices in hotels, Airbnbs, or rental spaces? FourScan runs 4 detection scans sequentially with a single tap. [4 Detection Powers] 1. Magnetic Scan - Detects magnetic field anomalies from electronic devices 2. Infrared Scan - Uses front camera to detect IR LEDs from night vision cameras 3. Wi-Fi Scan - Discovers suspicious devices on the local network 4. Bluetooth Scan - Searches and analyzes nearby BLE devices Note: Basic checking tool, not a substitute for professional investigation.

Screenshots

Image Upsample4 screens
FourScan3 screens

Verdict

The call

The clearest difference is in-app purchases: FourScan at none against Image Upsample's 4. FourScan also leads on ads (none vs shown) and update cadence (every 10 days vs every 2 months). Image Upsample's advantage is device support (3 vs 1) and iOS requirement (14.1 vs 16.0). On price 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. Image Upsample sells 4 one-off in-app purchases. FourScan asks for nothing beyond the download.

UpkeepUpdate frequency

Image Upsample ships an update every 2 months, FourScan every 10 days. The most recent releases landed on September 28, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 4 level
Image Upsample versus FourScan: the parameters behind the verdict, then further details
ParameterImage UpsampleFourScan
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 10 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.1 — better16.0
Further details — not scored
Size31 MB3 MB
Age rating4+4+
Developer子尧 纵satoshi amasaki

In-app purchases

4 purchases

Image Upsample

One-time4
  • 3 Energy Ore$0.99
  • 10 Energy Ore$2.99
  • 36 Energy Ore$8.99
Show 1 more
  • 120 Energy Ore$27.99
None

FourScan

No in-app purchases

Questions

Is Image Upsample free?
Image Upsample is free to download, with in-app purchases available.
Is FourScan free?
FourScan is free to download, with no in-app purchases.
Do Image Upsample or FourScan have ads?
Image Upsample shows ads; FourScan does not.
Which is updated more often, Image Upsample or FourScan?
Image Upsample ships an update every 2 months, and FourScan every 10 days. Most recently, Image Upsample was updated on September 28, 2026 and FourScan on September 10, 2026.

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