BDT vs Atomic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BDT
Easily track all important dates with this iPhone companion. It displays upcoming birthdays from your contacts, showing ages and zodiac signs. Stay organized and never miss a celebration.
- View birthdays from contacts
- Sort by birthdate
- Highlight next upcoming birthday
- Deep link to contacts
- Display age and zodiac sign
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Introducing the ultimate birthday companion for your iPhone. Never miss a friend or family member's special day again! With this app, you can easily view all the birthdays stored in your Contacts app sorted by birthdate. The app highlights the next upcoming birthday making it easier for you to plan ahead. It also deep links to your contacts app. Plus, it even displays people’s age and zodiac sign, making it a fun and interactive way to stay organized. Download Birthdays today and make sure you never forget a birthday ever again!
Atomic
Effortlessly build and sustain habits with a focus on personal growth. This app offers a minimalist design, dark mode, and clear visualizations to support your journey. Enjoy tailored insights and complete control over your data with a strong commitment to privacy.
- Habit building and tracking
- Goal setting
- Dark mode support
- Clear visualizations
- Tailored insights
- Privacy-focused design
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The effortless way to build and sustain your habits. Our app is designed for comfort with dark mode, clear visualizations, and tailored insights to support your personal growth. Atomic stands out with its minimalist design and unwavering commitment to your privacy. Your habits, your data, your control — with no compromises. Ready for a meaningful habit transformation? Try Atomic now.
Screenshots
Verdict
The clearest difference is price: Atomic at Free against BDT's $4.99. Atomic also leads on update cadence (every 10 days vs every 36 months) and ratings volume (34 vs 3). BDT's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 90%). On rating, ads, 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
Atomic is free to download; BDT costs $4.99 up front. Atomic sells 1 one-off in-app purchase. BDT asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for BDT against 4.9 for Atomic. That said, the two scores are not equally well evidenced: Atomic has 34 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of BDT's written reviews are positive against 90% of Atomic's.
BDT ships an update every 36 months, Atomic every 10 days. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.
| Parameter | BDT | Atomic |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (3 ratings) — better | 4.9 (34 ratings) |
| Positive reviews | 100.0% of reviews — better | 89.7% of reviews |
| Number of ratings | 3 | 34 — better |
| Update frequency | Every 36 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 44 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Jervis Thompson | Kanbon GmbH |
Customer experience
BDT
Atomic
In-app purchases
BDT
No in-app purchases
Atomic
- Atomic Pro$12.99
