ClearKey Calc vs Chirpy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClearKey Calc
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ClearKey Calc is a user - friendly calculator app. It features a simple and intuitive interface. With functions like basic arithmetic operations, and additional buttons for tip, tax calculations. It also has a lock function for privacy. Vibration and sound options add to the user experience.
Chirpy
This alarm clock requires users to solve puzzles to turn off their alarms, ensuring they are fully awake. Choose from various puzzle types like math, typing, or scanning an object to get out of bed.
- Puzzle-based alarm dismissal
- Multiple puzzle types (math, typing, color match, scan object)
- Customizable alarms
- Earned snooze function
- Clean, dark interface
- No account required
- Ad-free experience
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Chirpy is the alarm clock for people who snooze through everything. A normal alarm is too easy to dismiss while you're half asleep. Chirpy makes you prove you're actually awake by solving a quick puzzle before the alarm will turn off — so you're up and out of bed instead of back under the covers. PUZZLES THAT WAKE YOU UP Choose how hard you want to work for it: - Math — solve a quick equation - Typing — type out a phrase - Color Match — match the target color - Find the Color — tap the right swatch - Scan an Object — point your camera at a real item to dismiss the alarm (so you have to get up and walk to it) BUILT TO GET YOU OUT OF BED - Set as many alarms as you need - Snooze that still makes you earn it - Clean, dark interface that's easy on early-morning eyes - Meet Chirpy, your wake-up companion who cheers you on SIMPLE AND PRIVATE - No account required - No ads - Your alarms stay on your device Mornings are hard. Chirpy makes sure you actually start yours.
Screenshots
Verdict
The clearest difference is device support: ClearKey Calc at 3 against Chirpy's 1. ClearKey Calc also leads on iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases 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.
| Parameter | ClearKey Calc | Chirpy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 30 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 鹏飞 陈 | Rudrakshi Patel |
In-app purchases
ClearKey Calc
No in-app purchases
Chirpy
No in-app purchases








