FourCropper vs KnocQnow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FourCropper
Easily split large images into four parts for better display on social media. This tool helps prevent unwanted resizing and allows you to showcase more detail in your photos.
- Split images into 4 parts
- Direct sharing to Twitter
- Prevents unwanted resizing
- Supports 16:9 ratio cropping
- Customizable divisions (2, 3, or 4)
- Showcases photo details
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Just select a photo, split it into four, and easily share it directly to Twitter! You don't have to go to the trouble of saving the image and then launching the Twitter application. Have you ever uploaded your favorite photo to a social networking site only to have it resized to a smaller size without your permission? Don't worry about it! With Four Cropper, you can prevent the photo from being resized by dividing it into four parts beforehand, and display the photo in a larger size. The principle of 'Four Cropper' is very simple. Twitter's web and applications display images in a 16:9 ratio.You can also quadrant the image while doing the calculations, but Four Cropper will crop the photo to a 16:9 ratio and then split the photo. Your photos will display nicely on the Twitter platform! You can choose any number of divisions: 4, 3, or 2. Choose the number of divisions that makes your photo look the best! The evolution of smartphone cameras is amazing. Photos are getting higher resolution every year. Let's divide your prized photo into four sections and let everyone see all the details that would otherwise be omitted! # About Premium Plan The free version displays advertisements. There is no difference between the free version and the paid version except for advertisements. If you like it, please use the paid version. ## Premium Plan Annual payment 120 yen / year Ads are hidden by subscribing to the premium plan. ## Restoration when changing models When you change your phone model, you can restore the previously purchased paid version for free. Go to [Premium] on the Settings screen and select [Restore Purchase History]. Your purchase history is tied to your Apple ID, so please make sure you are logged in with the same Apple ID as when you made the purchase. ## About automatic recurring billing If you do not cancel your subscription at least 24 hours prior to the billing close date, you will be billed on the start of each new billing period. ## Confirmation and Cancellation Launch the Settings app on iOS and select Users->Subscription->Four Cropper at the top of the screen. You can check your subscription renewal date. You can also set/unset auto-renewal. ## Notes - If you wish to cancel your subscription, please follow the instructions above. - The billing is done through your Apple ID account. ## Privacy Policy https://products.ch3cooh.net/entry/fourcropper/privacy_policy ## Terms of Use https://products.ch3cooh.net/entry/fourcropper/terms_of_use_ios
KnocQnow
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--- This app is currently in beta. Some features will be unlocked in the future. Stay tuned! --- In typical social media and messaging apps, you need to think about your message, type it out, and revise it before sending it. However, while busy, there are many situations where you need to share your location quickly, send messages in the morning or at night, or reach out during a short break at work. Additionally, sending messages to multiple friends simultaneously can be cumbersome, whether it’s creating a group or copying and pasting messages. With KnocQnow, you can select a pre-written message and send it to your friends instantly with just one button. Plus, we’ve added features to automatically send messages at specific times and easily retrieve past messages. This saves you time and allows you to focus more on your real-life interactions. Enjoy smoother and more enjoyable communication with your friends!
Screenshots
Verdict
The clearest difference is in-app purchases: KnocQnow at none against FourCropper's 3. KnocQnow also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). On price 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
Both are free to download. FourCropper sells 3 in-app purchases, starting at $1.49 per year. KnocQnow asks for nothing beyond the download.
FourCropper ships an update every 5 weeks, KnocQnow fortnightly. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.
| Parameter | FourCropper | KnocQnow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | KENJI WADA | Satoshi Minami |
In-app purchases
FourCropper
- Premium Plan Yearly$1.491 Year
- Hide banner ads$0.99
- Hide banner ads$1.99
KnocQnow
No in-app purchases









