Comparison

Robo Spam Text & Call Blocker vs Customizer

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

Head to head
About

Robo Spam Text & Call Blocker

This app provides immediate relief from robocalls, telemarketing, and spam text messages. It blocks unwanted calls and messages, including those using neighbor spoofing, and also prevents spam and ads in your Safari web browser. Enjoy a risk-free trial before subscribing to a service that reduces unwanted calls by up to 99%.

Highlights
  • Blocks robocalls and telemarketing calls
  • Filters spam text messages
  • Blocks Safari browser ads and popups
  • Combats neighbor spoofing robocalls
  • Manually block or allow numbers
  • Weekly updated spam caller list
  • Dedicated customer service
Features
Read full description

Are robocalls ringing you on a regular basis? Robot Call Blocker offers immediate relief from over 700,000 spam, telemarketing and robocalling phone numbers.  Endless robocalls constantly ringing your phone? We block them. Receiving spam text messages? We block them. Don't want to see ads and spam popups in your Safari web browser? We block them. Tired of receiving spam calls? Us too. Robot Call Blocker reduces unwanted calls by up to 99% within 30 days! This app was designed to combat the latest trend in spam calls—’neighbor spoofing robocalls.’ It’s where spammers make it seem like they are calling from a familiar, local number so you’re more likely to answer it. We have collected an extensive list of spam callers that is growing daily. Robot Call Blocker offers a free trial period; opt-out at any time during the trial and you aren't charged a penny. A subscription is required to utilize the service. KEY BENEFITS: - Automatically blocks spam and robocalls from our extensive spam list - Neighbor Spoofing: block all calls from numbers with the first 6 digits - Take control! Bad number got through? Block it! Good number got blocked? Allow it! - Spam list is updated weekly, simply open the app after an update to block the latest spam callers! - No more spam and ads while you are browsing the internet using your Safari web browser - Dedicated customer service team with help from real humans! In-App Purchase: Robot Call Blocker is a free download, with a free trial period to use the app completely risk-free, before purchasing the service. If you purchase the service, you will be charged a monthly or yearly price according to your country and which item you purchase. The price will always be shown in the app before you complete a purchase. Payment will be charged to your iTunes Account at confirmation of purchase. Your Robot Call Blocker subscription automatically renews at the end of every billing period (as determined by your purchase of monthly or yearly service) and your iTunes account will automatically be charged within 24 hours prior to the end of the current period. You can turn off auto-renew at any time from your iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of Service: https://app.termly.io/document/terms-of-use-for-website/c172266f-31f4-46b1-b08f-a5cb5cb7803e Privacy Policy: https://www.robotcallblocker.app/privacy-policy

About

Customizer

Read full description

OES Customizer connects to your compatible OES Scoreboard over blue tooth to allow customization.

Screenshots

Robo Spam Text & Call Blocker4 screens
Customizer4 screens

Verdict

The call

The clearest difference is in-app purchases: Customizer at none against Robo Spam Text & Call Blocker's 11. Customizer also leads on iOS requirement (15.0 vs 17.6). Robo Spam Text & Call Blocker's advantage is update cadence (every 3 weeks vs every 27 months). On price, ads and device support 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. Robo Spam Text & Call Blocker sells 9 in-app purchases, starting at $2.99 per month. Customizer asks for nothing beyond the download.

UpkeepUpdate frequency

Robo Spam Text & Call Blocker ships an update every 3 weeks, Customizer every 27 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Robo Spam Text & Call Blocker versus Customizer: the parameters behind the verdict, then further details
ParameterRobo Spam Text & Call BlockerCustomizer
PriceFreeFree
Rating4.3 (5K ratings) — better—
Positive reviews39.7% of reviews—
Number of ratings5K — better—
Update frequencyEvery 3 weeks — betterEvery 27 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size130 MB98 MB
Age rating4+4+
DeveloperMurphy BrantleyOES Inc.

Bugs and requests

Robo Spam Text & Call Blocker

Reported bugs

3 issues
  • App crashes or freezes
  • Fails to update blocked numbers
  • Incompatible with certain devices or OS versions

Requested features

4 requests
  • Allow whitelisting of contacts
  • Improve spam detection accuracy
  • Provide more customization options
  • Offer a free version with limited features

Customizer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Robo Spam Text & Call Blocker

Subscriptions8
  • Unlimited Call Blocking2 variants$2.991 Month
  • Unlimited Call Blocking3 Days trial$3.991 Month
  • Unlimited Call Blocking7 Days trial$4.997 Days
Show 5 more
  • Unlimited Call Blocking7 Days trial2 variants$10.007 Days
  • Unlimited Call Blocking3 Days trial$14.996 Months
  • Unlimited Call Blocking1 Year trial$19.991 Year
  • Unlimited Call Blocking$29.991 Year
  • Unlimited Call Blocking7 Days trial$29.991 Year
One-time1
  • Lifetime Call Blocking$59.99
None

Customizer

No in-app purchases

Questions

Is Robo Spam Text & Call Blocker free?
Robo Spam Text & Call Blocker is free to download, with in-app purchases available.
Is Customizer free?
Customizer is free to download, with no in-app purchases.
Do Robo Spam Text & Call Blocker or Customizer have ads?
Neither Robo Spam Text & Call Blocker nor Customizer shows ads.
Which is updated more often, Robo Spam Text & Call Blocker or Customizer?
Robo Spam Text & Call Blocker ships an update every 3 weeks, and Customizer every 27 months. Most recently, Robo Spam Text & Call Blocker was updated on October 26, 2026 and Customizer on October 27, 2026.

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