AtCoder Alarm vs Ambis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AtCoder Alarm
This alarm clock requires users to solve a simple programming problem to turn it off. Problems are randomly selected from past AtCoder "A" tasks. Ensure you wake up on time with this unique challenge.
- Solve programming problems to stop alarm
- Random AtCoder "A" task selection
- Ensures waking up
- Requires AtCoder pre-registration
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This App is an alarm clock that doesn't stop until solving an easy problem of AtCoder (competitive programming web site). The problem is chosen randomly from "A" tasks of past ABCs. Let's make sure to wake up! * Pre-registration with AtCoder is required.
Ambis
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【Discover the Truth Behind Your WhatsApp Chats】 A smart & private analyzer that reveals the real story behind your conversations. Analyze everything—without them ever knowing. No servers. No leaks. Just you and your data. Totally offline. Totally private. It can also be used as a chat backup!! 【What This App Can Do】 What you’ll uncover: ・Compatibility score with your partner ・Message & call frequency ・Chat timing trends (days & hours) ・Words you both use most ...and more surprising insights! 【Why Users Love It】 ・No internet needed—everything stays on your device ・No third-party APIs, no hidden tracking ・Fast, beautiful, and 100% confidential ・Built for curious hearts & data lovers alike 【Disclaimer】 ・This app is not affiliated with WhatsApp. ・All analysis is done locally for your privacy. ・We’d love to hear your feedback—help us improve!
Screenshots
Verdict
The clearest difference is update cadence: AtCoder Alarm at daily against Ambis's every 2 days. Ambis's advantage is iOS requirement (12.0 vs 15.5). 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.
AtCoder Alarm ships an update daily, Ambis every 2 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.
| Parameter | AtCoder Alarm | Ambis |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Daily — better | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.5 | 12.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiichi Ito | REALBIND .inc |
In-app purchases
AtCoder Alarm
No in-app purchases
Ambis
No in-app purchases
