Flexi Calendar vs Alt Time
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flexi Calendar
Manage complex and rotating work schedules with ease. This app is designed for individuals with non-traditional weekly routines, allowing for custom schedule creation and sharing. Sync with your device's calendar and find common availability with friends.
- Customizable rotating schedules
- Support for non-traditional workweeks
- Schedule comparison with friends
- Export to Apple Calendar
- Find mutual availability
- Ideal for shift workers
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Your schedule doesn’t fit a standard week. Flexi turns rotating shifts into a clear, color-coded calendar and helps people you know find time together. SEE EVERY SHIFT • Build repeating work patterns, rotas, and schedule presets • Scan upcoming days at a glance • Track hours and spot trends PLAN TOGETHER • Compare group availability without sharing your entire calendar • Create group events with locations, notes, RSVP deadlines, and Going/Maybe/Can’t Go responses • Keep the next group event visible in the conversation MESSAGE PRIVATELY • Start direct chats or named group chats • Use moderators, permissions, nicknames, blocking, and reporting • New messages and event details use end-to-end encryption on supported Flexi versions STAY IN SYNC • Add selected events to Apple Calendar • Import or export the calendars you choose • Get optional reminders and notifications Contacts and calendar access are optional and requested only when you use features that need them. Account deletion is available in Settings.
Alt Time
This app provides lock screen widgets for iPhones, displaying both 12-hour and 24-hour time formats simultaneously. It offers five distinct widget styles and automatically adapts to your system's time settings for a seamless experience.
- Dual 12h/24h time display
- Five lock screen widget styles
- Automatic system time format detection
- Real-time updates
- One-tap setup
- No data collection or tracking
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Alt Time puts the times you actually need on your lock screen and home screen. See the opposite of your iPhone's clock format at a glance. If your phone shows 12-hour, the widget shows 24-hour — and the other way round. It follows your system setting automatically, so there is nothing to keep in sync. WHAT YOU GET Dial — a home screen clock face with two rings of numbers: 1–12 outside, 13–24 inside. The hour hand points at both at once, and the centre shows the time both ways, like 5:57 PM and 17:57. Small, medium or large, in ten finishes including parchment and black enamel. Show your own time or any city from your world clock. World clock — a home screen widget in small, medium or large, showing as many cities as you like in eight color finishes, with a sun and moon day-night glance. Looks right in StandBy. Alternate 12h/24h time — always the opposite of your system setting, updated automatically. Second time zone — search about 69,000 cities, not just capitals, and see that city's time labeled with its name. UTC / military time — 24-hour Zulu time for pilots, sailors, and anyone working across zones. Dual-time widget — two times side by side in a single lock screen slot, sized to match. Lock screen and home screen widgets, in circular and rectangular slots, tinted or clean. COMPLETELY OFFLINE The city database is built into the app. Searching it needs no network, so Alt Time works in Airplane Mode, on a plane, or with no signal at all. Nothing is uploaded, because there is nowhere for it to go. NO SUBSCRIPTION One purchase. No subscription, no ads, no account, and no data collected, stored or transmitted — ever. Requires iOS 17 or later.
Screenshots
Verdict
The clearest difference is price: Flexi Calendar at Free against Alt Time's $1.99. Flexi Calendar also leads on update cadence (daily vs monthly). Alt Time's advantage is chart position (#199 vs unranked). On rating, ratings volume, 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
Flexi Calendar is free to download; Alt Time costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Flexi Calendar against 5.0 for Alt Time. Both are backed by a comparable volume of ratings — 5 and 4 respectively.
Flexi Calendar ships an update daily, Alt Time monthly. Both last shipped on October 24, 2026.
| Parameter | Flexi Calendar | Alt Time |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (5 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 5 — better | 4 |
| Update frequency | Daily — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #199 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 21 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Lavey | MMH Adventures LLC |
Customer experience
Flexi Calendar
Alt Time
In-app purchases
Flexi Calendar
No in-app purchases
Alt Time
No in-app purchases









