Time Zone Converter・Convertime vs Butterfly Subscription Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time Zone Converter・Convertime
Easily find the current time and plan meetings across different time zones. This tool helps you avoid mental calculations by visually aligning schedules and identifying overlapping hours for seamless coordination.
- Multiple time zone display
- Meeting planner
- Visual time scale
- AM/PM or 24-hour format
- GMT code display
- Meeting time export
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Find the exact time & schedule meetings across multiple time zones easily with Convertime. Don't strain your brain by calculating it in your mind. Just swipe the time scale to the left and find the best time for different locations or use Meeting Planner feature to coordinate meetings. Use Convertime for planning meetings, catching up with family or friends, traveling, and many other things. Feel free to: * Add as many locations as you want * Rename locations for your needs * Use AM/PM or 24-hour time format * See the time difference and GMT code of each location * Set the exact date and time for the best match * Coordinate meetings across multiple time zones by visually aligning hours * Instantly see overlapping hours * Copy or export meeting time
Butterfly Subscription Tracker
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Subscriptions add up fast. Butterfly gives you one place to see them all: what you're paying, what's renewing soon, and what you've already cancelled. And yes, it's completely free. No subscription to track your subscriptions. What sets Butterfly apart is groups: Bundle your streaming services together, your work tools, or your gaming subscriptions. Each group shows you the combined cost at a glance, so you can finally see that your "cheap" subscriptions are actually costing you $45 a month. Color-code your subscriptions, search and filter through them as your list grows, and always know what's coming up next.
Screenshots
Verdict
The clearest difference is iOS requirement: Time Zone Converter・Convertime at 16.0 against Butterfly Subscription Tracker's 26.0. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Time Zone Converter・Convertime ships an update every 2 months, Butterfly Subscription Tracker monthly. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.
| Parameter | Time Zone Converter・Convertime | Butterfly Subscription Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Siarhei Serdziukou | Eduardo Salinas Marquez |
In-app purchases
Time Zone Converter・Convertime
No in-app purchases
Butterfly Subscription Tracker
No in-app purchases
Questions
Is Time Zone Converter・Convertime free?
Is Butterfly Subscription Tracker free?
Do Time Zone Converter・Convertime or Butterfly Subscription Tracker have ads?
Which is updated more often, Time Zone Converter・Convertime or Butterfly Subscription Tracker?
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