AdSpamBlock vs uShield
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AdSpamBlock
This app blocks unwanted advertisements and detects spam across various browser and email applications. It protects users from phishing ads and illegal tracking, offering a cleaner and safer online experience.
- Blocks ads in browsers (Safari, Chrome)
- Blocks ads in email applications
- Detects and blocks spam
- Monitors and blocks illegal tracking
- Protects against phishing ads
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AdSpamBlock is a free, made-in-Japan ad blocker and spam detector. It frees you from phishing ads and annoying ads. [Important] Seeing ads? Turn off "Connectivity Assist" When iOS's Connectivity Assist (Settings > Wi-Fi; formerly Wi-Fi Assist) is on, your traffic may switch to cellular data while Wi-Fi is unstable and bypass ad blocking, so ads appear. Go to Settings > Wi-Fi > Connectivity Assist and turn it off (you can also turn it off only for the Wi-Fi network you use). When the app detects this, it also lets you know on the Home screen and with a notification. [Three advantages of AdSpamBlock] 1. Wide filtering coverage Blocks ads in the background not only in browsers such as Safari and Chrome, but also in mail and other apps, protecting you from harmful and spam ads. 2. High performance, still free AdSpamBlock stays free thanks to our users. In return, we may occasionally show reward program offers in a non-intrusive way. 3. Monitors ads and unauthorized tracking Beyond ads, it monitors and blocks tracking code that runs behind websites without your consent. [Check that it is working] The "Status" screen in Settings shows whether the VPN and ad blocking are running and when the block list was last updated. You can update the list and run a check right there. [Notes] - Because all traffic is filtered, iOS's data usage screen attributes the data usage of all apps to this app. - If Instagram shows an error, try deleting and reinstalling the Instagram app. - Requires iOS 15 or later.
uShield
This app acts as a personal web shield, blocking ads and trackers to save data, extend battery life, and protect online privacy. It offers customizable filters and seamless iCloud sync across Apple devices for a cleaner, safer browsing experience.
- Block ads and trackers
- Worldwide ad blocking with automatic updates
- Customizable filters and rules
- Seamless iCloud sync
- Privacy-focused local processing
- Easy setup and smart utilities
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WHY CHOOSE USHIELD? uShield goes beyond basic ad blocking. It acts as your personal web shield, saving your data plan, extending battery life, and ensuring your online privacy remains completely intact. KEY FEATURES: - Block Ads & Trackers Say goodbye to banners, video ads, pop-ups, and invisible trackers. uShield seamlessly blocks distractions so you can focus on the content that matters. - Worldwide Ad Blocking Browse local and international websites without interruptions. uShield comes with frequent, automatic filter updates to ensure you're always protected against the newest tracking scripts and ad networks. - Customizable Filters & Rules Tailor your browsing experience! Whitelist your favorite websites, hide specific web elements, and manage blocked domains easily. - Seamless iCloud Sync Got multiple Apple devices? uShield automatically synchronizes your custom filters, whitelists, and settings across your iPhone, iPad, and Mac via iCloud. Set it up once and enjoy a clean web everywhere. - Privacy First, Always We believe your data is yours. uShield processes all filtering locally on your device. We do not track your browsing history, nor do we collect or sell your personal information. - Easy Setup & Smart Utilities Get started in seconds with a simple, user-friendly interface. Enjoy extra smart utilities and receive helpful, responsive support whenever you need it. Experience the web as it was meant to be. Download uShield today and start browsing faster, cleaner, and safer! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: AdSpamBlock at none against uShield's 3. AdSpamBlock also leads on ratings volume (675 vs 1). uShield's advantage is ads (none vs shown) and update cadence (weekly vs monthly). On price, monetization model, 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. uShield sells 3 in-app purchases, starting at $0.99 per month. AdSpamBlock asks for nothing beyond the download.
uShield holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: AdSpamBlock has 675 ratings behind it against 1, so its average is the more settled of the two.
AdSpamBlock ships an update monthly, uShield weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | AdSpamBlock | uShield |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (675 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 78.9% of reviews | — |
| Number of ratings | 675 — better | 1 |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 24 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | misosil inc | The Le Ngoc |
Customer experience
AdSpamBlock
uShield
Bugs and requests
AdSpamBlock
Reported bugs
10 issues- App turns off randomly without user action
- Internet connection drops intermittently (5 minutes recovery)
- Some websites become unreadable when enabled
- Barcode display fails in certain apps (JRE)
- Device overheating when app is active
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- Automatic toggle activation despite being disabled
- App stops working after iOS updates
- Excessive background data usage even when idle
- Some ads still slip through despite being enabled
- Performance degradation on newer iPhone models
Requested features
9 requests- Notification to remind users to turn app back on after restart
- Reduce battery consumption optimization
- Lower mobile data usage
- YouTube and streaming service ad blocking
- Prevent automatic shutoff
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- Better compatibility with banking/payment apps
- Ability to care for the bulldog mascot
- Support for reward video ads (whitelist improvements)
- Reduce device heating
uShield
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AdSpamBlock
No in-app purchases
uShield
- Monthly14 Days trial$0.991 Month
- Yearly1 Month trial$6.991 Year
- Lifetime$17.99









