Toothbrush Tracker vs CritiCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Toothbrush Tracker
This app helps maintain optimal oral hygiene by reminding you when to replace your toothbrush. It follows CDC recommendations and ensures you adhere to dental health best practices with timely notifications.
- Input toothbrush first use date
- Timely replacement notifications
- Persistent alerts for hygiene
- Supports CDC recommendations
- Effortless setup
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Introducing Toothbrush Tracker, your essential tool for optimal oral hygiene. Backed by recommendations from the Centers for Disease Control and Prevention, our app ensures that your dental health remains a top priority. Research indicates that replacing your toothbrush every 3 to 4 months is crucial for maintaining effective oral care. With Toothbrush Tracker, forget the hassle of tracking your toothbrush's lifespan manually. Simply input the date of your toothbrush's first use, and let the app take care of the rest. Experience the convenience of timely notifications reminding you precisely when it's time to replace your toothbrush. We are committed to ensuring that your dental routine aligns with the highest standards of health and hygiene. Effortless Setup: Input the date of your toothbrush's first use and let the app handle the tracking. Timely Notifications: Receive gentle reminders when it's time to replace your toothbrush, ensuring you stay on top of your dental care routine. Persistent Alerts: Our app is designed to keep reminding you until you've taken the necessary step to maintain optimal oral hygiene. Uncompromising Health Standards: We prioritize your well-being by making it difficult to overlook the importance of replacing your toothbrush within the recommended timeframe. Your smile deserves the best, and with Toothbrush Tracker, you're one step closer to achieving it. Terms of Use: https://doubleuapp.com/privacy/terms.html
CritiCalc
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Simple tool for calculating a variety of transport medicine problems. This is not a tool for self-diagnosis and is meant to aid medical professionals that have been trained in these tools. Please seek medical help from a doctor as these tools in isolation are insufficient to provide medical advice. If you are a medical provider, please cross reference local policies, protocols, and training. No guarantee is provided to the accuracy of these tools.
Screenshots
Verdict
The clearest difference is in-app purchases: CritiCalc at none against Toothbrush Tracker's 2. CritiCalc also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 11 months). On price, device support and iOS requirement 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. Toothbrush Tracker sells 2 in-app purchases, starting at $0.99 per 3 months. CritiCalc asks for nothing beyond the download.
Toothbrush Tracker ships an update every 11 months, CritiCalc every 2 weeks. The most recent releases landed on September 2, 2026 and September 13, 2026 respectively.
| Parameter | Toothbrush Tracker | CritiCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 11 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 31 MB | 53 MB |
| Age rating | 4+ | 17+ |
| Developer | DOUBLE U s.r.o. | Jason Richmond |
In-app purchases
Toothbrush Tracker
- Individual plan$0.993 Months
- Family plan$1.993 Months
CritiCalc
No in-app purchases







