3in90 vs HelloAndBye
Price, ratings, monetisation and update history for both apps, side by side — 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.
HelloAndBye
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Tired of cluttered contact lists? Our app allows you to save contacts with a timer, ensuring they automatically delete after a set period. Ideal for temporary contacts such as vacation rentals, short-term work projects, or one-time connections. Keep your contact list neat and efficient!
Screenshots
Verdict
The clearest difference is update cadence: 3in90 at every 5 days against HelloAndBye's every 3 months. 3in90 also leads on iOS requirement (9.0 vs 16.6). 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
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, HelloAndBye every 3 months. The most recent releases landed on October 6, 2026 and September 9, 2026 respectively.
| Parameter | 3in90 | HelloAndBye |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 50 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | iService Ottner Röck | Mauro Bianchelli |
In-app purchases
3in90
No in-app purchases
HelloAndBye
No in-app purchases
