MathWake vs O' Good
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MathWake
This alarm app requires users to solve math problems to turn it off. It offers adjustable difficulty levels and problem counts to ensure you wake up. Designed for reliability, it aims to prevent the common issue of alarms failing to sound.
- Solve math problems to dismiss alarm
- Adjustable difficulty levels
- Selectable problem count
- Daily repeat settings
- 5-minute snooze option
- Volume control
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Wake Up Smart with Math Mathwake is an alarm app that requires solving math problems to dismiss. Features: - Difficulty levels: Easy (addition/subtraction) / Normal (multiplication/division) / Hard (mixed operations) - Problem count: Choose 1-5 problems - Repeat settings: Set by day of week - Snooze: 5-minute delay - Volume control: Adjust to your preference Perfect for: - Those who struggle to wake up with regular alarms - People who tend to oversleep - Students and workers with early mornings Built for Reliability: We solved the common complaint of competing apps crashing and failing to sound. Mathwake delivers stable and dependable alarm performance.
O' Good
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O' Good is a "Survival Confirmation" system designed for those who live alone. We verify that you are active and online. 【Key Features】 • Automated Survival Check: Set your check-in frequency. The app pings you to confirm your survival status. • Inactivity Trigger: If you fail to verify your status within the set time, the system flags an anomaly and alerts your designated contacts. • Survival Dashboard: Visualize your status and keep track of your activity. • Silent Mode: Works quietly in the background as long as you remain active. It's not just an app; it's your personal survival protocol. Download O' Good and take control of your status. Privacy Policy: https://still-alive-e48ae.web.app/privacy.html Terms of Service: https://still-alive-e48ae.web.app/terms.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: O' Good at every 3 weeks against MathWake's every 6 weeks. MathWake's advantage is iOS requirement (13.0 vs 15.6). 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. MathWake sells 2 in-app purchases, starting at $4.99 per month and O' Good sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
MathWake ships an update every 6 weeks, O' Good every 3 weeks. The most recent releases landed on September 26, 2026 and September 19, 2026 respectively.
| Parameter | MathWake | O' Good |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 94 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | kota tada | WeiJia Tech Co., Ltd. |
In-app purchases
MathWake
- Ad-free for 1 month7 Days trial$4.991 Month
- Ad-free for 1 year14 Days trial$49.991 Year
O' Good
- O' Good VIP$3.991 Month
- O' Good VIP$29.991 Year
