Circa³ vs hoootag
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
hoootag
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BLE tag connection and screen update tool
Screenshots
Verdict
The clearest difference is price: hoootag at Free against Circa³'s $3.99. hoootag also leads on update cadence (every 6 days vs monthly). Circa³'s advantage is device support (4 vs 2) and iOS requirement (11.0 vs 16.6). 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
hoootag is free to download; Circa³ costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Circa³ ships an update monthly, hoootag every 6 days. The most recent releases landed on October 26, 2026 and October 10, 2026 respectively.
| Parameter | Circa³ | hoootag |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.5 (384 ratings) — better | — |
| Positive reviews | 63.4% of reviews | — |
| Number of ratings | 384 — better | — |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 39 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Kostiantyn Zuiev | Suzhou Aiqian Technology Co., Ltd |
In-app purchases
Circa³
No in-app purchases
hoootag
No in-app purchases
