ZoneFlow vs Days Since
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
ZoneFlow
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Keep the right timezone in front of you, automatically. ZoneFlow is a widget-first timezone app that changes what it shows throughout the day, based on a schedule you set. No more mental math, no more opening a world clock app to check what time it is for the person you're about to call. Whether you're keeping up with friends and family abroad, coordinating with a remote team across time zones, or travelling, ZoneFlow keeps the time that matters most right on your Home Screen and Lock Screen โ right when you need it. FEATURES โข Schedule different timezones to appear on your widget at different times of day โข Widgets for Home Screen and Lock Screen โข Automatic switching โ set it up once and ZoneFlow handles the rest โข Built natively in Swift with SwiftData and WidgetKit for a fast, reliable experience ZoneFlow is free to use, with a Pro upgrade available for additional timezone schedules and widgets. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Days Since
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Days Since answers one question: how long has it been since you last did this? Changed the furnace filter. Watered the plants. Called your parents. Replaced your toothbrush. Had the oil changed. These are the things that matter but never fit on a calendar, because they don't happen on a schedule โ they happen when they happen. Add a tracker. Tap once when you do the thing. That's the whole app. ONE TAP, FROM ANYWHERE Log a completion from the list, the detail screen, a Home Screen widget, your Apple Watch, or by asking Siri. It takes a second, so you'll actually do it. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Days Since at none against ZoneFlow's shown. ZoneFlow's advantage is update cadence (every 3 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. ZoneFlow sells 2 in-app purchases, starting at $2.99 per month and Days Since sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
ZoneFlow ships an update every 3 days, Days Since monthly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | ZoneFlow | Days Since |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days โ better | Monthly |
| Ads | Yes | No โ better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, Apple Watch โ better |
| Requires iOS | 18.0 | 18.0 |
| Further details โ not scored | ||
| Size | 19 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Benji Mandel | Steven Zilberberg |
In-app purchases
ZoneFlow
- ZoneFlow Pro Monthly7 Days trial$2.991 Month
- ZoneFlow Pro Yearly7 Days trial$14.991 Year
Days Since
- Day Since Premium (Monthly)$1.991 Month
- Days Since Premium Lifetime$19.99









