Comparison

Image Upsample vs Defndr

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

Defndr

This app acts as an SMS firewall, using on-device AI to detect and block spam, phishing, and scams. It prioritizes user privacy by processing all data locally on your device, ensuring your messages never leave your iPhone. Offers both free and premium features for enhanced protection.

Highlights
  • On-device AI spam detection
  • Phishing and scam blocking
  • Zero-trust privacy
  • Custom keyword blocking
  • Link protection
  • Unlimited custom block lists (Pro)
  • Allow lists for trusted contacts (Pro)
Features
Read full description

Defndr is an SMS firewall that stops spam before it reaches you. On-device machine learning checks every message from unknown senders, blocks phishing and scams, and quietly sorts the rest into the right folder — without sending anything anywhere. Your messages never leave your iPhone. — ZERO-TRUST PRIVACY - 100% on-device processing - No cloud servers - Nothing to sign up for - Your data stays on your device FREE - On-device spam and scam detection - Custom keyword blocking - Protection against shortened and disguised phishing links - Automatic sorting into Transactions, Promotions and Junk - No ads, no data collection DEFNDR PRO - Advanced machine-learning detection for sophisticated scams - Adjustable sensitivity, from lenient to strict - Allow and block lists for senders you choose - Unlimited custom keywords - Detection for suspicious formatting, links and patterns - Custom theme studio with a gradient editor HOW IT WORKS Defndr plugs into iOS Message Filtering and runs silently in the background. Messages from people in your contacts are never touched — only texts from unknown senders are checked, and the verdict is decided entirely on your device. — Web: https://dro1d.org Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy: https://dro1d.org/defndr-privacy.html

Screenshots

Image Upsample4 screens
Defndr4 screens

Verdict

The call

The clearest difference is rating: Image Upsample at 5.0 against Defndr's 3.0. Image Upsample also leads on device support (3 vs 1) and iOS requirement (14.1 vs 18.0). Defndr's advantage is ads (none vs shown). On price, ratings volume, update cadence and in-app purchases 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 3 one-off in-app purchases and Defndr sells 2 in-app purchases, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Image Upsample holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Image Upsample ships an update every 2 months, Defndr every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Image Upsample versus Defndr: the parameters behind the verdict, then further details
ParameterImage UpsampleDefndr
PriceFreeFree
Rating5.0 (2 ratings) — better3.0 (2 ratings)
Positive reviews—66.7% of reviews
Number of ratings22
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.1 — better18.0
Further details — not scored
Size31 MB26 MB
Age rating4+4+
Developer子尧 纵DRO1D LABS LIMITED

Customer experience

Image Upsample

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Defndr

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

3 purchases

Image Upsample

One-time3
  • 10 Energy Ore$2.99
  • 36 Energy Ore$8.99
  • 120 Energy Ore$27.99
2 purchases

Defndr

Subscriptions1
  • Defndr Premium Yearly14 Days trial$14.991 Year
One-time1
  • Defndr Lifetime Premium Access$34.99

Questions

Is Image Upsample free?
Image Upsample is free to download, with in-app purchases available.
Is Defndr free?
Defndr is free to download, with in-app purchases available.
Which has better reviews, Image Upsample or Defndr?
Image Upsample is rated higher. Image Upsample averages 5.0 out of 5 from 2 ratings, while Defndr averages 3.0 from 2 ratings.
Do Image Upsample or Defndr have ads?
Image Upsample shows ads; Defndr does not.
Which is updated more often, Image Upsample or Defndr?
Image Upsample ships an update every 2 months, and Defndr every 3 weeks. Most recently, Image Upsample was updated on November 3, 2026 and Defndr on October 30, 2026.

Other comparisons