Comparison

Kcell Filter vs Grandpa Notes

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

Head to head
About

Kcell Filter

Manage incoming and outgoing calls with customizable block and allow lists. Control who can contact you and who you can call, with options for voice calls, SMS, or both. Set up filters for your own number or for family members.

Highlights
  • Incoming call and SMS filtering
  • Outgoing call filtering
  • Black and White lists
  • Customizable greeting messages
  • Filter management for other numbers
  • Daily subscriber fee
Features
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Kcell Filter app allows Activ and Kcell subscribers to manage Incoming Call Filter and Outgoing call Filter services. Incoming Call Filter The Incoming Call Filter service allows to manage your own incoming traffic. You can both block and permit incoming calls and SMS only from the prior defined numbers.  

Black and White lists are provided within the scope of the Service.

 The Black list affords grounds for setting a ban to incoming calls and SMS from certain numbers.

 The White list affords grounds for setting only those numbers, from which you want to receive incoming calls and SMS

 Black and White lists may be defined in respect of the following communication services:

 1. Incoming voice calls and SMS
 2. Incoming voice calls only
 3. Incoming SMS only 

In case of a blocked subscriber tries to make a call to you, he/she will hear the short ring tones. Short ring tones may be changed with special operator’s prompt or with your own greeting message. After the service is activated, the Black list automatically becomes active. After activation of the White list, the Black list is deactivated, in this case all numbers of the Black list survive. After activation of the Black list, the White list is deactivated, in this case all numbers of the White list survive.

 Attention! If you activated the White list and it is empty, then the incoming voice calls and SMS will be unavailable for you. Subscriber fee for the service per day - 10 tenge (Price is shown inclusive of VAT
) Service connection/disconnection - free Service management - free Outgoing Call Filter The Outgoing Call Filter service allows you to manage your outgoing calls. You can block/unblock outgoing calls to pre-defined numbers only. 

 You can create your Black and White Lists.  

The Black List allows blocking calls to pre-defined numbers, while the While List allows you to select the phone numbers which you want to call.  

 With Outgoing Call Filter you can easily block your outbound calls to both standard and short numbers. Once the service is activated you can set both the Black and the White lists. For instance, if you want to limit your outbound calls to predefined numbers, simply add all your contacts to the Black list by clicking “All” and then add the contacts to which you want to make calls to your White list. When calling a blocked number, you will hear a message informing you that calls to that number are restricted. While roaming, you will hear the busy tones and later you will receive SMS notifying you that calls to that number are blocked. This service also allows you to set filters on someone else’s numbers, e.g. your kid’s number. For that, you have to know the password to your kid’s profile. In this case, the service fee will be charged to your kid’s account. Subscriber fee for the service per day - 10 tenge (Price is shown inclusive of VAT) Service connection/disconnection - free Service management - free

About

Grandpa Notes

Features
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Grandpa Notes is a simple note-taking app. It is free and open source, with no advertisements, in-app purchases or tracking. Your notes are stored as plain text in a straightforward folder structure. You can create notebooks locally or in iCloud. There is also an optional encryption layer that is compatible with Cryptomator.

Screenshots

Kcell Filter1 screens
Grandpa Notes4 screens

Verdict

The call

The clearest difference is update cadence: Kcell Filter at every 2 months against Grandpa Notes's every 20 months. Kcell Filter also leads on iOS requirement (8.0 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kcell Filter ships an update every 2 months, Grandpa Notes every 20 months. The most recent releases landed on August 24, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 6 level
Kcell Filter versus Grandpa Notes: the parameters behind the verdict, then further details
ParameterKcell FilterGrandpa Notes
PriceFreeFree
Positive reviews33.3% of reviews—
Update frequencyEvery 2 months — betterEvery 20 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better17.0
Further details — not scored
Size4 MB3 MB
Age rating4+4+
DeveloperKcell JSCJulien Eyriès

In-app purchases

None

Kcell Filter

No in-app purchases

None

Grandpa Notes

No in-app purchases

Questions

Is Kcell Filter free?
Kcell Filter is free to download, with no in-app purchases.
Is Grandpa Notes free?
Grandpa Notes is free to download, with no in-app purchases.
Do Kcell Filter or Grandpa Notes have ads?
Neither Kcell Filter nor Grandpa Notes shows ads.
Which is updated more often, Kcell Filter or Grandpa Notes?
Kcell Filter ships an update every 2 months, and Grandpa Notes every 20 months. Most recently, Kcell Filter was updated on August 24, 2026 and Grandpa Notes on September 10, 2026.

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