PERRK vs Knock Knock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PERRK
Transform your photos into animated stories with creative filters. Share your creations with a community of artists and discover inspiring content. Build your personal artistic gallery and connect with others.
- Animate photos with creative filters
- Personalized content stream
- Discover featured art and creators
- Intuitive in-app camera
- Personal artistic profile/gallery
- Community sharing and connection
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PERRK - In Motion Every Moment Tells a Story With PERRK, animate your world in ways you've never imagined. Our app brings your snapshots to life with a variety of creative filters to unleash your artistic spirit. HOME: Your Personalized Stream - Immerse yourself in a stream of PERRKs from people you follow. See their latest creations displayed in a chronological flow, tailored for your enjoyment. FEED: Discover and Get Featured - Explore a curated selection of art. Follow creators who inspire you and get a chance to have your creations featured in this vibrant community. CAMERA: A Canvas for Your Imagination - Capture and animate your world using our intuitive camera. Experiment with a multitude of filters, each offering a unique way to express your vision. PROFILE: Your Artistic Identity - Your profile is your personal gallery. Display your best PERRKs, curate your favorites, and let your artistic journey shine through. Be part of a community where creativity knows no bounds. Share your journey, connect with others, and bring your stories to life, one PERRK at a time. Terms & Conditions: https://perrk.notion.site/PERRK-Terms-and-Conditions-f3efb94afb5043d9bcf264a24d7ae01f?pvs=4 Privacy Policy: https://perrk.notion.site/perrk/PERRK-Privacy-Policy-e65feb4b9b6d42da9d1044e1004be8b6
Knock Knock
Create personalized spaces to share your passions, hobbies, and memories. Transform your experiences into interactive stories with photos and music. Express yourself with customizable profiles and engage with moments creatively.
- Create personalized interest spaces
- Share interactive stories with media
- Customize user profiles
- Engage with moments using creative elements
- Explore immersive experiences
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Knock Knock is the ultimate social platform for creating, sharing, and exploring immersive experiences. It’s more than just posts—Knock Knock lets you: • Create Rooms: Curate your passions and interests in personalized spaces. Share your favorite memories, hobbies, or adventures all in one place. • Share Tickets: Transform your journeys or events into dynamic, interactive stories with photos, music, and more. Perfect for travel, special occasions, or milestones. • Customize Profiles: Express yourself with unique backgrounds, themes, and music that make your profile truly yours. • Engage with Stories: Share your moments creatively with stickers, interactive elements, and a personal touch. Explore a world where creativity meets connection. Whether you’re documenting your travels, building a community, or sharing life’s moments, Knock Knock redefines the way you connect. Download Knock Knock and turn your life’s journey into something unforgettable.
Screenshots
Verdict
The clearest difference is in-app purchases: Knock Knock at none against PERRK's 4. Knock Knock also leads on rating (5.0 vs 4.6) and update cadence (every 3 days vs every 3 weeks). PERRK's advantage is ratings volume (125 vs 1). On price, ads, 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. PERRK sells 4 in-app purchases, starting at $2.99 per month. Knock Knock asks for nothing beyond the download.
Knock Knock holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PERRK has 125 ratings behind it against 1, so its average is the more settled of the two.
PERRK ships an update every 3 weeks, Knock Knock every 3 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | PERRK | Knock Knock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (125 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 71.2% of reviews | — |
| Number of ratings | 125 — better | 1 |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 146 MB | 197 MB |
| Age rating | 12+ | 17+ |
| Developer | Perrk LLC | sulaiman salem |
Customer experience
PERRK
Knock Knock
Bugs and requests
PERRK
Reported bugs
4 issues- Developers seem to have abandoned the app
- Login issues with phone number changes
- Phone number format issue for Germany
- Cannot log in without access to phone number
Requested features
22 requests- More filters (free)
- Improve camera quality
- Add audio feature
- Higher quality option
- Add texture/grain option
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- Photo editing (exposure, contrast, brightness)
- Create motion photos from camera roll
- Update filters
- Make app for Android
- Edit caption feature
- Save to camera roll without posting
- Username changes
- Private account option
- Set up password for login
- Add block list
- Slow down or speed up motion
- Flashing filters, negative filters
- Image animation feature
- Camera stabilizer
- Adjust brightness when using camera
- Add drafts
- Short bio
Knock Knock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PERRK
- PERRK Premium Monthly$2.991 Month
- PERRK Premium Monthly$3.991 Month
- PERRK Premium Annual$19.991 Year
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- PERRK Premium Annual$25.991 Year
Knock Knock
No in-app purchases
