3in90 vs ClippingKK
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
3in90
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In aviation, to be allowed to legally operate an aircraft in commercial air transport or carrying passengers, you need 3 takeoffs and 3 landings in the preceding 90 days on that aircraft type. By entering the dates of your takeoffs and landings, this app gives you an easy to interpret preview of when your next ones are due. With 3in90, you can manage all your relevant aircraft types - separately.
ClippingKK
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1. you have to sign up `https://clippingkk.annatarhe.com`, 2. drop your `My Clippings.txt` in kindle. 3. relaunch the app and login. Congratulations! your content will be synchronized here
Screenshots
Verdict
The clearest difference is update cadence: 3in90 at every 5 days against ClippingKK's every 5 weeks. 3in90 also leads on iOS requirement (9.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
3in90 ships an update every 5 days, ClippingKK every 5 weeks. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.
| Parameter | 3in90 | ClippingKK |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days β better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 9.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 50 MB | 144 MB |
| Age rating | 4+ | 4+ |
| Developer | iService Ottner RΓΆck | δΉ θ΄Ί |
In-app purchases
3in90
No in-app purchases
ClippingKK
No in-app purchases
