Comparison

EXTENSION.app (Stickers) vs PK

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

Head to head
About

EXTENSION.app (Stickers)

Enhance your iMessage and FaceTime conversations with a diverse collection of stickers. Easily access and apply them directly within your messaging and video calls.

Highlights
  • iMessage stickers integration
  • iMessage camera effects
  • FaceTime call effects
  • Easy access within apps
  • Wide variety of stickers
Features
Read full description

EXTENSION.app is the all-in-one extension app for iMessage Stickers and FaceTime. ■■■ EXTENSION.app for iMessage Stickers 1. Open Messages.app. 2. Tap (+) button. 3. Select "Stickers" category. 4. Select "EXTENSION" app. ■■■ EXTENSION.app for iMessage Camera 1. Open Messages.app. 2. Tap (+) button. 3. Select "Camera" category. 4. Tap (Star) button. 5. Select "EXTENSION" app. ■■■ EXTENSION.app for FaceTime 1. Open FaceTime.app. 2. Start a call. 3. Tap (Star) button inside a viewfinder. 4. Select "EXTENSION" app. --- Terms of Use: https://extension.app/terms Privacy Policy: https://extension.app/privacy

About

PK

Access city services, local events, and real-time updates. Submit service requests and receive important notifications about community projects and emergencies.

Highlights
  • Access city services
  • View local event information
  • Submit service requests
  • Receive real-time notifications
  • Stay informed on city projects
  • Emergency alerts
Features
Read full description

The PK-Connect App provides residents with easy access to city services, updates, and information. Stay informed about local events, submit service requests, and receive real-time notifications on city projects and emergency alerts, making it easier than ever to stay connected and engaged with your community.

Screenshots

EXTENSION.app (Stickers)4 screens
PK4 screens

Verdict

The call

The clearest difference is rating: EXTENSION.app (Stickers) at 5.0 against PK's 3.0. EXTENSION.app (Stickers) also leads on update cadence (every 6 weeks vs every 6 months). PK's advantage is in-app purchases (none vs 4) and iOS requirement (17.6 vs 26.0). On price, ratings volume, ads and monetization model 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. EXTENSION.app (Stickers) sells 4 in-app purchases, starting at $0.99 per month. PK asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EXTENSION.app (Stickers) holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

EXTENSION.app (Stickers) ships an update every 6 weeks, PK every 6 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 5 level
EXTENSION.app (Stickers) versus PK: the parameters behind the verdict, then further details
ParameterEXTENSION.app (Stickers)PK
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (1 ratings)
Number of ratings11
Update frequencyEvery 6 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS26.017.6 — better
Further details — not scored
Size9 MB142 MB
Age rating17+12+
DeveloperX.appCity of Poughkeepsie

In-app purchases

4 purchases

EXTENSION.app (Stickers)

Subscriptions4
  • EXTENSION+ Monthly$0.991 Month
  • EXTENSION+ Monthly for Family$1.991 Month
  • EXTENSION+ Yearly$9.991 Year
Show 1 more
  • EXTENSION+ Yearly for Family$19.991 Year
None

PK

No in-app purchases

Questions

Is EXTENSION.app (Stickers) free?
EXTENSION.app (Stickers) is free to download, with in-app purchases available.
Is PK free?
PK is free to download, with no in-app purchases.
Which has better reviews, EXTENSION.app (Stickers) or PK?
EXTENSION.app (Stickers) is rated higher. EXTENSION.app (Stickers) averages 5.0 out of 5 from 1 ratings, while PK averages 3.0 from 1 ratings.
Do EXTENSION.app (Stickers) or PK have ads?
Neither EXTENSION.app (Stickers) nor PK shows ads.
Which is updated more often, EXTENSION.app (Stickers) or PK?
EXTENSION.app (Stickers) ships an update every 6 weeks, and PK every 6 months. Most recently, EXTENSION.app (Stickers) was updated on November 4, 2026 and PK on October 30, 2026.

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