Circa³ vs Date601
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circa³
Easily manage time across different locations and time zones. Find optimal meeting times and generate invitations that suit everyone's schedule. This tool helps synchronize teams working in various parts of the world.
- Compare time across multiple locations
- View working hour overlaps
- Integrate calendars
- Organize personally
- Create one-touch meeting invitations
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Circa helps you keep time across multiple locations and time zones. Find the best times to connect and quickly create meeting invitations that work for everyone. Circa keeps teams in sync across multiple locations. Features: - Visually compare time across multiple locations - Quickly see working hour overlaps - Connect your calendars to check your schedule - Personal, organize in your own way - Create one-touch meeting invitations Featured: *** Best apps for tech-savvy travelers *** "10 of the best travel apps ... that you'll actually use." - The Guardian "This App Makes It Easy To Collaborate Across The Globe." - FASTCOMPANY
Date601
This utility displays the current date in ISO 8601 format on your wearable device. Users can choose to include the day of the week for additional context. It offers a straightforward way to access date information directly from your wrist.
- ISO 8601 date display
- Optional day of the week
- Watch compatibility
- iPhone companion app
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View today's date in ISO 8601 format. Optionally view the day of the week as well.
Screenshots
Verdict
The clearest difference is rating: Circa³ at 4.5 against Date601's 1.0. Circa³ also leads on ratings volume (381 vs 1) and update cadence (monthly vs every 2 months). Date601's advantage is price ($0.99 vs $3.99). On 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
Circa³ costs $3.99 and Date601 $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Circa³ holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Circa³ has 381 ratings behind it against 1, so its average is the more settled of the two.
Circa³ ships an update monthly, Date601 every 2 months. The most recent releases landed on October 17, 2026 and September 29, 2026 respectively.
| Parameter | Circa³ | Date601 |
|---|---|---|
| Price | $3.99 | $0.99 — better |
| Rating | 4.5 (381 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 63.4% of reviews | — |
| Number of ratings | 381 — better | 1 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 39 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Kostiantyn Zuiev | Prathamesh Kowarkar |
Customer experience
Circa³
Date601
In-app purchases
Circa³
No in-app purchases
Date601
No in-app purchases
